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Begoniaceae

Begonia L.

Last edited by Pieter B. Pelser, 17 April 2021

Photos
  1. Begonia acclivis Coyle, Edinburgh J. Bot. 67(1) (2010) 125; --Type: Pipoly & Romero et al. PPI38054 (holo BRIT), Palawan: District of Tindogan, Mantalingajan Mt. Range, Mt. Gantung, 19-Aug-1996. Endemic to the Philippines. PALAWAN. On ultramafic soils. Conservation status: Endangered (DAO 2017-11). Photos
  2. Begonia acuminatissima Merr., PJS 6 c (1911) Bot. 395; EPFP 3 (1923) 119. Endemic to the Philippines. ?CAMIGUIN, MINDANAO: Agusan del Norte (Mt Urdaneta), BALUT. Lowland primary forests and stream embankments up to 400m. Photos
  3. Begonia adamsensis Magtoto & Rubite, Phytotaxa 343 (2018) 290; --Type: L.M. Magtoto et al. 242 (NLUH, holo), Luzon: Ilocos Norte Prov., Adams, 18°26.108´N, 124°54.518´E, c. 308m, Mar-2016. Endemic to the Philippines. LUZON: Ilocos Norte. Conservation status: Critically Endangered (Magtoto et al. 2018). Photos
  4. Begonia aequata A.Gray, Bot. Wilkes US Explor. Exped. (1854) 658; --Merr., EPFP 3 (1923) 119. Endemic to the Philippines. LUZON: Laguna (Mt Makiling). In primary forests, 400-1000m, climbing on tree trunks. Locally common. Conservation status: Endangered (DAO 2017-11). Photos
  5. Begonia affinis Merr., PJS 7 c (1912) Bot. 308; EPFP 3 (1923) 119. Endemic to the Philippines. MINDANAO: Zamboanga. Damp forests, c. 900m.
  6. Begonia agusanensis Merr., PJS 6 c (1911) Bot. 377; EPFP 3 (1923) 119; --Type: BS 7312 Merrill (US, iso), Mindanao: Agusan del Norte prov., Agusan River. Endemic to the Philippines. MINDANAO: Agusan del Norte, Bukidnon. Along small streams in lowland primary forests.
  7. Begonia alba Merr., PJS 10 c (1915) Bot. 45; EPFP 3 (1923) 120; --Type: BS 19963 McGregor (US, iso), Luzon: Ifugao prov., Feb-1913. Endemic to the Philippines. LUZON: Ifugao. Probably in forests above 1000m. Photos
  8. Begonia alvarezii Merr., PJS 6 c (1911) Bot. 377; EPFP 3 (1923) 120. Endemic to the Philippines. LUZON: Apayao, Nueva Ecija, Bulacan, Quezon. Low and medium elevation forest stream embankments.
  9. Begonia androturba Coyle, Edinburgh J. Bot. 66 (2009) 206; --Type: Pipoly & Romero et al. 38072 (BRIT, holo), Palawan: Tindogan District, Mantalingajan Mt Range, Mt Gantung, Tagwaya River, 19-Aug-1996. Endemic to the Philippines. PALAWAN. Conservation status: Endangered (DAO 2017-11).
  10. Begonia angilogensis Merr., PJS 26 (1925) 477; EPFP 4 (1925) 250; --Type: BS 40777 Ramos (US), Luzon: Rizal, Mt Angilog. Endemic to the Philippines. LUZON: Rizal (Mt Angilog). Forested slopes, 1200m.
  11. Begonia anisoptera Merr., PJS 6 c (1911) Bot. 398; EPFP 3 (1923) 120; --Type: BS 5482 Merrill (NY, iso; US, isosyn), Mindanao: Zamboanga prov., 10-Oct-1906. Endemic to the Philippines. MINDANAO: Zamboanga. Semi-shaded cliffs and boulders in low elevation forests.
  12. Begonia apayaoensis Merr., PJS 13 c (1918) Bot. 39; EPFP 3 (1923) 120; --Type: BS 28403 Fenix (PNH, lecto; K, US, isolecto), Luzon: Apayao prov., Mt. Sulu, 22-May-1917. Endemic to the Philippines. LUZON: Apayao. Rocky shaded slopes, c. 1000m. Conservation status: Endangered (Rubite 2013; DAO 2017-11).
  13. Begonia balangcodiae Rubite, S.H.Liu & K.F.Chung, Phytotaxa 407 (2019) 13; --Type: K.-F. Chung 2012 (PNH, holo; HAST, iso), Luzon: Benguet Prov, Kapangan, Brgy Sagubo, 1200m, 16°36’43” N, 120°33’48” E, 2-Feb-2012. Endemic to the Philippines. LUZON: Benguet.
  14. Begonia bangsamoro D.P.Buenavista, Pranada & Y.P.Ang, Phytotaxa 497 (2021) 41; --Type: Buenavista DPB 001 (PNH, holo); Buenavista DPB 002 (PNH, ?iso), Mindanao: Lanao de Sur Prov, Wao, Brgy Banga, Sitio Trese, 1197m, 9-Aug-20. Endemic to the Philippines. MINDANAO: Bukidnon, Lanao del Sur, Misamis Oriental (D. Cabactulan, pers. comm. 16-Apr-21). Conservation status: Endangered (Buenavista et al. 2021). Note by P.B. Pelser (17-Apr-21): Buenavista DPB 002 is identified as the isotype of Begonia bangsamoro D.P.Buenavista, Pranada & Y.P.Ang. Despite the fact that it was given a different collecting number than the holotype, it is "a collection presumed to be of a single taxon made by the same collector(s) at the same time from a single locality" (Article 8.2; See Note 1 and Ex. 4).  Photos
  15. Begonia beijnenii Y.P.Ang, Tandang, Rubite & R.Bustam., Phytotaxa 455 (2020) 197; --Type: Camangeg & Bustamante 2 (PNH, holo; USTH, PPC, iso), Palawan: San Vicente, Brgy Bigaho, Bigaho Falls, 30m, 19-Jan-2020. Endemic to the Philippines. PALAWAN. Conservation status; Vulnerable D1 (Ang et al. 2020). Photos
  16. Begonia biliranensis Merr., PJS 10 c (1915) Bot. 46; EPFP 3 (1923) 120; --Type: BS 18822 McGregor (US, iso), Biliran, Jun-1914. Endemic to the Philippines. BILIRAN, SAMAR. Epilithic in low and medium elevation forests.
  17. Begonia binuangensis Merr., PJS 13 c (1918) Bot. 40; EPFP 3 (1923) 120; --Type: BS 28813 Ramos & Edaño (PNH, lecto; K, US, isolecto), Luzon: Quezon prov., Mt. Binuang, 11-May-1917. --Begonia hemicardia Elmer ex Merr., EPFP 3 (1923) 120, nom. nud. Endemic to the Philippines. LUZON: Albay, Laguna, Quezon, Rizal, Sorsogon (Mt Bulusan), NEGROS (photos), PANAY. Climbing on tree trunks in primary forests at medium elevation. Conservation status: Least Concern (Rubite 2013). Photos
  18. Begonia blancii M.Hughes & C.I Peng, Bot. Stud. (Taipei) 52 (2011) 204; --Type: P. Blanc & R.R. Rubite 09-201 (PNH, holo; E, SING, iso), Palawan: En route to Bulalakaw Falls, about 25 km east of El Nido, 300-400m. Endemic to the Philippines. PALAWAN. On small boulders in the shade of primary forest. Conservation status: Other Threatened Species (DAO 2017-11). Photos
  19. Begonia brevipes Merr., PJS 6 c (1911) Bot. 378; EPFP 3 (1923) 378; --Type: BS 7431 Ramos (PNH, lecto, K, US, isolecto), Luzon: Cagayan prov., Mar-1909. Endemic to the Philippines. LUZON: Cagayan, MINDANAO: Lanao. Lowland forests. Note by Pelser (27-Aug-14): according to Rubite (2013), this species is endemic to Cagayan Province. Conservation status: Endangered (Rubite 2013; DAO 2017-11). Photos
  20. Begonia cabanillasii Y.P.Ang, Tandang, J.Agcaoili & R.Bustam., Phytotaxa 453 (2020) 245; --Type: RAAB 0001 (=PNH 257805) (PNH, holo; USTH, PPC, iso), Palawan: El Nido, Brgy Maligaya, Biodiversity Assessment Management System (BAMS), 30m, 9-Jul-2019. Endemic to the Philippines. PALAWAN. Conservation status: Critically Endangered C2a (i & ii) (Ang et al. 2020). Photos
  21. Begonia calcicola Merr., PJS 6 c (1911) Bot. 400; EPFP 3 (1923) 120; --Type: BS 7062 Merrill (US, iso), Luzon: Rizal prov., Jan-1910. Endemic to the Philippines. LUZON: Rizal, Laguna, Batangas. Cliffs at low elevation. Photos
  22. Begonia camiguinensis Elmer, LPB 7 (1915) 2553; --Type: Elmer 14222, Mindanao: Camiguin, Mambajao, Nov-1912. CAMIGUIN. Note by P.B. Pelser (10-Sep-19): Considered a synonym of Begonia acuminatissima Merr. by Rubite et al. (2013) and Nakamura et al. (2013), but it is phylogenetically distinct from this species in Hughes et al. (2018). Photos
  23. Begonia caramoanensis Rubite, Irabagon, Palacio, Y.P.Ang & R.Bustam., Phytotaxa 439 (2020) 291; --Type: Rubite 988 (PNH, holo), Luzon: Camarines Sur prov, Mun Caramoan, Brgy Caputatan, 2-Nov-2018. Endemic to the Philippines. LUZON: Camarines Sur. Photos
  24. Begonia casiguranensis Quisumb. & Merr., PJS 37 (1928) 172; --Type: BS 45277 Ramos & Edaño (PNH, holo; B, BM, NY, P, US, iso), Luzon: Aurora prov, Casiguran, Cabulig River, 28-May-1925. Endemic to the Philippines. LUZON: Aurora (Casiguran, Cabulig River). Along streams in open places at low elevation. Conservation status: Endangered (DAO 2017-11). Conservation status: Least Concern (Rubite et al. 2020). 
  25. Begonia castilloi Merr., PJS 13 c (1918) Bot. 38; EPFP 3 (1923) 120; --Type: BS 22723 Castillo (US, iso), Luzon: Cagayan prov., Apr/May-1915. Endemic to the Philippines. LUZON: Cagayan. Streamside cliffs, c. 100m. Photos
  26. Begonia caudata Merr., PJS 13 c (1918) Bot. 41; EPFP 3 (1923) 120; --Type: BS 28414 Fenix (NY, US, iso), Luzon: Apayao prov., Mt. Sulu, May-1917. Endemic to the Philippines. LUZON: Apayao. Rocky forested slopes, climbing on trees.
  27. Begonia chingipengii Rubite, Phytotaxa 164 (2014) 177; --Type: C.I Peng, C.I Huang, Rubite & J.R.C. Callado 23368 (PNH, holo; CAS, E, HAST, HUH, MO, iso), Luzon: Nueva Ecija, Gabaldon, Brgy Malinao, Maplud River, ca. 415m, 25-Oct-2011. Endemic to the Philippines. LUZON: Nueva Ecija. Conservation status: Vulnerable (DAO 2017-11). Photos
  28. Begonia chloroneura P.Wilkie & Sands, New Plantsman 6 (1999) 132. Endemic to the Philippines. LUZON: Isabela. Photos
  29. Begonia ciliifera Merr., PJS 6 c (1911) Bot. 376; EPFP 3 (1923) 121; --Type: FB 9318 Whitford & Hutchinson (US, iso), Mindanao: Zamboanga del Sur prov., Port Banga, Jan/Feb-1908. Endemic to the Philippines. MINDANAO: Bukidnon (photos), Zamboanga. Damp shaded ravines up to 400m. Photos
  30. Begonia cleopatrae Coyle, Edinburgh J. Bot. 67 (2010) 128; --Type: P. Wilkie, M. Mendum, G.C.G. Argent, Q. Cronk, D.J. Middleton, R. Fuentes & R.V. Chavez 25373 (holo E), Palawan: Cleopatra’s Needle, 19-Jan-1998. Endemic to the Philippines. PALAWAN. Conservation status: Vulnerable (DAO 2017-11). Photos
  31. Begonia collisiae Merr., PJS 14 (1919) 424; EPFP 3 (1923) 121; --Type: BS 31469 Ramos & Edaño (US, iso), Panay: Aklan prov. (formerly part of Capiz prov.), Libacao, Apr/May-1918. Endemic to the Philippines. PANAY: Aklan. Forested stream embankment, c. 100m. Photos
  32. Begonia colorata Warb. in Perkins, Frag. Fl. Philipp. (1904) 51; --Merr., EPFP 3 (1923) 121; --Type: Warburg 14633 (B, lecto), Mindanao: Sibulan, Jul-1888. --Begonia bolsteri Merr., PJS 6 c (1911) Bot. 387; EPFP 3 (1923) 120; --Type: Bolster 310 (B, lecto; K, PNH, US, isolecto), Mindanao: Surigao del Norte prov., Apr-1906. Endemic to the Philippines. LUZON: Laguna, Sorsogon, BILIRAN, LEYTE, MINDANAO: Agusan del Norte, Agusan del Sur, Surigao. Along streams in primary lowland forests. Endemic to the Philippines. Conservation status: Vulnerable D2 (Naive et al. 2018). Photos
  33. Begonia contracta Warb. in Perkins, Frag. Fl. Philipp. (1904) 54; --Merr., EPFP 3 (1923) 121; --Type: Warburg 13085 (B, holo), Luzon: Tayabas, Sampaloc, Feb-1911. Endemic to the Philippines. LEYTE, LUZON: Bataan, Ilocos Norte, Isabela, Quezon, MINDANAO: Zamboanga del Norte, NEGROS, SAMAR. Conservation status: Least Concern (Rubite 2013). Photos
  34. Begonia copelandii Merr., PJS 6 c (1911) Bot. 401; EPFP 3 (1923) 121. Endemic to the Philippines. Photos
  35. Begonia coronensis Merr., PJS 26 (1925) 480; EPFP 4 (1925) 250; --Type: BS 41164 Ramos (P, lecto; BO, L, US, isolecto), Coron Island, 17-Sep-1922. Endemic to the Philippines. CORON, CULION, PALAWAN. Lowland forests on limestone, on rocks and ledges along small streams. Conservation status: Vulnerable (DAO 2017-11). Photos
  36. Begonia crispipila Elmer, LPB 2 (1910) 737; --Merr., EPFP 3 (1923) 121; --Type: Elmer 8687 (NY, US, iso), Luzon: Benguet prov., Baguio, Mar-1907. Endemic to the Philippines.
  37. Begonia culasiensis C.I Peng, Rubite, C.W.Lin & K.F.Chung, Botanical Studies 58 (2017) 28; --Type: C.I Peng 23759, with K.-F. Chung, C.I Huang & R.R. Rubite (PNH, holo; HAST, iso), Panay: Antique Prov., Culasi, Brgy. Buenavista, Kipot Falls, c. 50m, 18-Jun-2012. Endemic to the Philippines. PANAY. Conservation status: Vulnerable D2 (Peng et al. 2017).
  38. Begonia cumingiana (Klotz.) DC., Prodr. 151 (1864) 320; --Merr., EPFP 3 (1923) 121; --Type: Cuming 856 (K, lecto; B, BM, E, FI, K, P, isolecto), Luzon: Albay. Endemic to the Philippines. LUZON: Albay, Cagayan, Sorsogon. Conservation status: Vulnerable (Rubite 2013; DAO 2017-11).
  39. Begonia cumingii A.Gray, Bot. Wilkes US Explor. Exped. (1854) 658; --Merr., EPFP 3 (1923) 121. --Begonia philippinensis A.DC., Prodromus 15 (1864) 320; --Type: Cuming 1897 (K, lecto; FI, isolecto), Luzon: Tayabas, Mt. Banahaw, 1811. Endemic to the Philippines. LUZON: Camarines Sur, Ifugao, Laguna, Mountain Province. Conservation status: Least Concern (Rubite 2013). Photos
  40. Begonia depressinerva Pranada, Phytotaxa 425 (2019) 155; --Type: M.E.C. Salvador PUPH 0098 with C.J.S. Luna (PNH, holo; CAHUP, FEUH, iso), Luzon: Quezon Prov, General Nakar, Brgy Pesa along Kidadayaig Falls, 150m, 3-Dec-2018. Endemic to the Philippines. LUZON: Quezon. Conservation status: Vulnerable D1 (Pranada et al. 2019). Photos
  41. Begonia dimorpha S.Julia, Sandakania 20 (2015) 59; --Paguntalan et al., Project Tawsi: Sulu Hornbill Project (2020) 41; --Type: from Borneo. Borneo, Philippines. TAWI-TAWI.
  42. Begonia × dinglensis Rubite, C.-I Peng, Koh Nakam. & K.F.Chung, Phytotaxa 494 (2021) 158; --Type: Peng 23859 (PNH, holo; HAST, iso), Panay: Iloilo Prov, Dingle, Bulabog Puti-an National Park, 200m, 24-Jun-2012. Endemic to the Philippines. PANAY. Hybrid of Begonia camiguinensis and Begonia nigritarum. Conservation status: Vulnerable (Nakamura et al. 2021).
  43. Begonia dolichotricha Merr., PJS 17 (1920) 292; EPFP 3 (1923) 122; --Type: BS 33926 Ramos & Edaño (US, iso), Luzon: Camarines Sur prov., Mt. Bagacay, Nov/Dec-1918. Endemic to the Philippines. LUZON: Camarines Norte (photos), Camarines Sur. Photos
  44. Begonia droseroides C.I Peng, Rubite & C.W.Lin, Phytotaxa 347 (2018) 201; --Type: Peng 23418 (PNH, holo; HAST, iso), Luzon: Aurora, Maria Aurora, Brgy. Zazal, Cabualan River, Bazal-Baubo Watershed, c. 165 m, 15°48’44”N, 121°24’23”E, 28-Oct-2011. Endemic to the Philippines. LUZON: Aurora, Isabela (photos). Photos
  45. Begonia edanoi Merr., PJS 13 c (1918) Bot. 314; EPFP 3 (1923) 122; --Type: BS 29374 Ramos & Edaño (NY, US, iso), Luzon: Rizal prov., Mt. Susong-Dalaga, Aug-1917. Endemic to the Philippines. LUZON: Rizal. Primary forests at medium elevation, climbing on trees.
  46. Begonia elatostematoides Merr., PJS 7 c (1912) Bot. 309; EPFP 3 (1923) 122; --Type: BS 8232 Merrill (US, iso), Mindanao: Zamboanga prov., Nov/Dec-1911. Endemic to the Philippines. MINDANAO: Zamboanga. Damp shaded ravines and forested slopes, 800-1000m.
  47. Begonia elmeri Merr., PJS 13 c (1918) Bot. 39; EPFP 3 (1923) 122; --Begonia peltata Elmer, LPB  7 (1915) 2556, nom. illeg., auct. non A.DC.; --Type: Elmer 14183. Endemic to the Philippines. MINDANAO: Agusan del Norte (Mt Hilong-hilong). Cliffs in shaded ravines, c. 1050m. Photos
  48. Begonia elnidoensis C.I Peng, Rubite & C.W.Lin, PLOS ONE 13 (2018) e0194877:10; --Type: C.I Peng 23508 with K.-F. Chung, C.I Huang & R.R. Rubite (PNH, holo; HAST, iso), Palawan: El Nido, 2m, 4-Nov-2011. Endemic to the Philippines. PALAWAN. Conservation status: Least Concern (Hughes et al. 2018). Photos
  49. Begonia esculenta Merr., PJS 6 c (1911) Bot. 389; EPFP 3 (1923) 122; --Type: BS 9449 C.B.Rob. (US, iso), Luzon: Quezon prov., Infanta, Aug-1909. Endemic to the Philippines. LUZON: Quezon. Mossy forests, c. 800m. Photos
  50. Begonia everettii Merr., PJS 6 c (1911) Bot. 390; EPFP 3 (1923) 122. Endemic to the Philippines.
  51. Begonia fasciculiflora Merr., PJS 6 c (1911) Bot. 376; EPFP 3 (1923) 122. Endemic to the Philippines.
  52. Begonia fenicis Merr., PJS 3 c (1908) Bot. 421; EPFP 3 (1923) 122; --Type: BS 3619 Fenix (US, isosyn), Batanes: May/June-1907. Ryukyus, Taiwan (Lanyu), Philippines. BATAN and BABUYAN ISLS. Photos
  53. Begonia gabaldonensis Rubite, C.I Peng & C.W. Lin, Phytotaxa 347 (2018) 204; --Type: Peng 23356 (PNH, holo; HAST, iso), Luzon: Nueva Ecija, Gabaldon, Brgy. Malinao, Maplud River, c. 525 m, 15°29’43”N, 121°20’54”E, 25-Oct-2011. Endemic to the Philippines. LUZON: Nueva Ecija.
  54. Begonia georgei Coyle, Edinburgh J. Bot. 66 (2009) 209; --Type: Argent & Romero PPI 9669 (also distributed as Argent & Romero 92165; BISH, holo; BRIT, E, iso), Palawan: Brookes Point, Mt Mantalingahan, 4-Mar-1992. Endemic to the Philippines. PALAWAN. Conservation status: Vulnerable (DAO 2017-11). Photos
  55. Begonia gironellae C.I Peng, Rubite & C.W.Lin, PLOS ONE 13 (2018) e0194877:16; --Type: C.I Peng 24579 with C.I Huang, R.R. Rubite, E.P. Gironella, M.A. Suzuki & T. Cardona (PNH, holo; HAST, iso), Palawan: Puerto Princesa City, Brgy Tanabag, Tanabag River, c. 30m, 19-Dec-2014. Endemic to the Philippines. PALAWAN. Conservation status: Data Deficient (Hughes et al. 2018).
  56. Begonia gitingensis Elmer, LPB 2 (1910) 738; --Merr., EPFP 3 (1923) 122; --Type: Elmer 12368 (US, NY, iso), Sibuyan: Mt. Guiting-guiting, Apr-1910. Endemic to the Philippines. SIBUYAN (Mt Giting-giting). Shaded ravines along small streams, c. 525m.
  57. Begonia gracilipes Merr., PJS 6 c (1911) Bot. 405; EPFP 3 (1923) 123; --Type: BS 7395 Ramos (PNH, lecto; B, K, US, isolecto), Luzon: Cagayan prov., Claveria, 13-Mar-1909. Endemic to the Philippines. LUZON: Cagayan, CATANDUANES. Climbing on trees in damp primary forests at low elevation. Note by Pelser (27-Aug-14): only known from Cagayan according to Rubite (2013). Conservation status: Endangered (Rubite 2013; DAO 2017-11).
  58. Begonia gutierrezii Coyle, Edinburgh J. Bot. 67(1) (2010) 131; --Type: H. Gutierrez & R.A. Espiritu PNH80739 (PNH, holo), Palawan: Lipuun Point, May/Jun-1963. Endemic to the Philippines. PALAWAN. Conservation status: Vulnerable (DAO 2017-11). Photos
  59. Begonia halconensis Merr., PJS 6 c (1911) Bot. 385; EPFP 3 (1923) 123; --Type: Merrill 5515 (NY, US, iso), Mindoro: Mindoro Oriental prov., Mt. Halcon, Nov-1906. Endemic to the Philippines. MINDORO. Photos
  60. Begonia hernandioides Merr., PJS 6 c (1911) Bot. 392; EPFP 3 (1923) 123; --Type: BS 7393 Ramos (US, iso), Luzon: Cagayan prov., Mar-1909. Endemic to the Philippines. LUZON: Cagayan, Tayabas. On cliffs and bowlers in shaded ravines at low or medium elevation. Photos
  61. Begonia hirtella Link, Enum. Hort. Berol. Alt. 2 (1822) 296. Naturalized in the Philippines. Photos
  62. Begonia hughesii Rubite & C.I Peng, Botanical Studies 56 (2015) 19; --Type: C.I Peng 23466, with K.-F. Chung, C.I Huang, R.R. Rubite (PNH, holo; HAST, iso), Palawan: Puerto Princesa City, Puerto Princesa Subterranean River National Park, c. 5m, 2-Nov-2011. Endemic to the Philippines. PALAWAN. Conservation status: Least Concern (Rubite et al. 2015). Photos
  63. Begonia incisa DC., Ann. Sci. Nat. Bot. iv, 11 (1859) 129; --Merr., EPFP 3 (1923) 123. Endemic to the Philippines. LUZON: Camarines Sur, Ilocos Norte, Laguna, Pampanga, Quezon, PANAY. Conservation status: Least Concern (Rubite 2013). Photos
  64. Begonia isabelensis Quisumb. & Merr., PJS 37 (1928) 173; --Type: BS 47207 Ramos & Edaño (NY, US, iso), Luzon: Isabela prov., San Mariano, 14-Mar-1926. Endemic to the Philippines. LUZON: Isabela (San Mariano). On rocks along forested streams, c. 400m. Photos
  65. Begonia jagorii Warb. in Perkins, Frag. Fl. Philipp. (1904) 54; --Merr., EPFP 3 (1923) 123. Endemic to the Philippines. LUZON: Tayabas, MINDORO. In primary forests at low elevation. Photos
  66. Begonia × kapangan Rubite, S.H.Liu & K.F.Chung, Phytotaxa 407 (2019) 13; --Type: K.-F. Chung 2013 (PNH, holo; HAST, iso), Luzon: Benguet Prov, Kapangan, Brgy Sagubo, 1200m, 16°36’43” N, 120°33’48” E, 2-Feb-2012. Endemic to the Philippines. LUZON: Benguet. Hybrid between Begonia balangcodiae Rubite, S.H.Liu & K.F.Chung and Begonia crispipila Elmer.
  67. Begonia klemmei Merr., PJS 6 c (1911) Bot. 402; EPFP 3 (1923) 123; --Type: FB 5677 Klemme (US, iso), Luzon: Mountain Prov. (prev. Lepanto), Oct/Nov-1906. Endemic to the Philippines. LUZON: Mountain Prov.
  68. Begonia lacera Merr., PJS 10 c (1915) Bot. 49; EPFP 3 (1923) 123. Endemic to the Philippines. BASILAN. Low elevation primary forests.
  69. Begonia lagunensis Elmer, LPB 2 (1910) 735; --Merr., EPFP 3 (1923) 123; --Type: Elmer 9327 (PNH, lecto, BM, E, L, US, NY, isolecto), Luzon: Quezon prov., Lucban, May-1907. Endemic to the Philippines. LUZON: Laguna, Quezon, MINDORO. Note by Pelser (27-Aug-14): according to Rubite (2013) endemic to Luzon. Conservation status: Not Threatened (Rubite 2013). Conservation status: Other Threatened Species (DAO 2017-11). Photos
  70. Begonia lancifolia Merr., PJS 10 c (1915) Bot. 48; EPFP 3 (1923) 123; --Type: BS 16162 Reillo. Endemic to the Philippines. BASILAN. Low elevation primary forests.
  71. Begonia lancilimba Merr., PJS 14 (1919) 424; EPFP 3 (1923) 123; --Type: BS 32232 McGregor (US, iso), Panay: Antique prov., May/Aug-1918. Endemic to the Philippines. PANAY.
  72. Begonia latistipula Merr., PJS 10 c (1915) Bot. 51; EPFP 3 (1923) 123; --Type: BS 15367 Ramos (US, iso), Leyte: Dagami, Aug-1912. Endemic to the Philippines. LEYTE. Photos
  73. Begonia leptantha C.B.Rob., PJS 6 c (1911) Bot. 211; EPFP 3 (1923) 124. Endemic to the Philippines. Photos
  74. Begonia leucosticta Warb. in Perkins, Frag. Fl. Philipp. (1904) 55; --Merr., EPFP 3 (1923) 124. Endemic to the Philippines. Photos
  75. Begonia littleri Merr., PJS 6 c (1911) Bot. 379; EPFP 3 (1923) 124. Endemic to the Philippines.
  76. Begonia loheri Merr., PJS 6 c (1911) Bot. 382; EPFP 3 (1923) 124. Endemic to the Philippines. Photos
  77. Begonia longibractea Merr., PJS 17 (1920) 293; EPFP 3 (1923) 124, as ‘longibracteata’; --Type: BS 34870 Ramos & Pascasio (US, iso), Siargao, Jun-1919. Endemic to the Philippines. SIARGAO. Forested slopes at low elevation. 
  78. Begonia longinoda Merr., PJS 6 c (1911) Bot. 397; EPFP 3 (1923) 124; --Type: BS 13372 Ramos, Luzon: Quezon prov. Tagkawayan, c. 200m, Mar-1911. Endemic to the Philippines. LUZON: Quezon (Tagkawayan). Lowland primary forests, c. 200m. 
  79. Begonia longiscapa Warb. in Perkins, Frag. Fl. Philipp. (1904) 52; --Merr., EPFP 3 (1923) 124. Endemic to the Philippines. Photos
  80. Begonia longistipula Merr., PJS 6 c (1911) Bot. 379; EPFP 3 (1923) 124. Endemic to the Philippines. Photos
  81. Begonia longivillosa DC., Ann. Sci. Nat. Bot. iv, 11 (1859) 130; --Merr., EPFP 3 (1923) 124. Endemic to the Philippines.
  82. Begonia luzonensis Warb. in Perkins, Frag. Fl. Philipp. (1904) 52; --Merr., EPFP 3 (1923) 1. --Begonia bakeri Elmer, auct. non C.DC. Endemic to the Philippines. Photos 
  83. Begonia macgregorii Merr., PJS 7 c (1912) Bot. 310; EPFP 3 (1923) 124; --Type: BS 11334 McGregor (PNH, lecto; B, BM, L, P, US, isolecto), Luzon: Nueva Vizcaya prov., Dupax, Mar-1912. Endemic to the Philippines. LUZON: Isabela, Nueva Vizcaya. Along small streams in primary forests at medium elevation. Conservation status: Endangered (Rubite 2013; DAO 2017-11). Photos 
  84. Begonia madulidii Rubite, C.I Peng & C.W. Lin, Phytotaxa 347 (2018) 207; --Type: R. Rubite 290 (PNH, holo; HAST, iso), Luzon: Camarines Sur, Sangay, c. 60 m, 13º29’29”N, 123º37’35”E, 22-May-2006. Endemic to the Philippines. LUZON: Camarines Sur. Photos
  85. Begonia makuruyot M.G.Rule, Y.P.Ang, Rubite, Docot, R.Bustam., & A.S.Rob., Phytotaxa 470 (2020) 227; --Type: C.B.M. Domingo, R.V.A. Docot, and M.G.Q. Rule SDN19-006 (PNH, holo; CAHUP, FEUH iso), Mindanao: Surigao del Norte Prov, Claver, Brgy Sapa, beside Daywan River, 11-Jul-2019. Endemic to the Philippines. MINDANAO: Surigao del Norte. Conservation status: Critically Endangered B1ab(ii,iii,v)+2ab(i,ii,iii,v) (Rule et al. 2020). Photos
  86. Begonia malindangensis Merr., PJS 6 c (1911) Bot. 391; EPFP 3 (1923) 125; --Type: FB 4563 Mearns & Hutchinson (NY, US, iso), Mindanao: Misamis Occidental prov., Mt. Malindang, May-1906. Endemic to the Philippines. MINDANAO: Misamis Occidental. Photos
  87. Begonia manillensis DC., Ann. Sci. Nat. Bot. iv, 11 (1859) 129; --Merr., EPFP 3 (1923) 125. Endemic to the Philippines. Photos
  88. Begonia mearnsii Merr., PJS 6 c (1911) Bot. 383; EPFP 3 (1923) 125. Endemic to the Philippines. Photos
  89. Begonia megacarpa Merr., PJS 9 c (1914) Bot. 378; EPFP 3 (1923) 125. Endemic to the Philippines. LUZON: Nueva Ecija, Camarines, LEYTE, MINDANAO: Agusan. Climbing on trees in primary forests at low and medium elevation. Photos
  90. Begonia megalantha Merr., PJS 10 c (1915) Bot. 47; EPFP 3 (1923) 125; --Type: McGregor BS 19860 (PNH, lecto), Luzon: Ifuago, Mt. Polis, Feb-1913. Endemic to the Philippines. LUZON: Aurora, Ifuago, Mountain Province. Conservation status: Endangered (Rubite 2013; DAO 2017-11). Photos
  91. Begonia merrilliana C.I Peng, Rubite, C.W.Lin & K.F.Chung, Botanical Studies 58 (2017) 28; --Type: C.I Peng 23765, with K.-F. Chung, C.I Huang & R.R. Rubite (PNH, holo; HAST, iso), Panay: Antique Prov., Culasi, Brgy. Flores, c. 225m., 19-Jun-2012. Endemic to the Philippines. PANAY. Conservation status: Vulnerable D2 (Peng et al. 2017).
  92. Begonia merrittii Merr., PJS 5 c (1910) Bot. 365; EPFP 3 (1923) 125; --Type: Elmer 6254 (K, lecto; B, BO, K, P, US, isolecto), Luzon: Benguet prov., Mt. Sto. Tomas, May-1904. Endemic to Philippines. LUZON: Benguet, Mountain Province. Conservation status: Least Concern (Rubite 2013). Photos 
  93. Begonia mindanaensis Warb. in Perkins, Frag. Fl. Philipp. (1904) 55; --Merr., EPFP 3 (1923) 125. Endemic to the Philippines. Photos
  94. Begonia mindorensis Merr., PJS 6 c (1911) Bot. 396; EPFP 3 (1923) 125; --Type: A.D.E. Elmer 12857 (B, neo; BM, BO, E, FI, K, MICH, P, U, isoneo), Palawan: Puerto Princesa, Mt. Pulgar, Mar-1921. --Begonia pinamalayensis Merr., PJS 26 (1925) 482; EPFP 4 (1925) 250; --Type: BS 40856 Ramos (B, lecto; L, P, US, isolecto), Mindoro: Mindoro Oriental prov., Pinamalayan. Endemic to the Philippines. LUZON, PALAWAN, MINDORO. Along forest streams. Photos 
  95. Begonia negrosensis Elmer, LPB 2 (1910) 736; --Merr., EPFP 3 (1923) 125; --Type: Elmer 9903 (NY, MO, US, iso), Negros: Negros Oriental prov., Cuernos Mtns., Jun-1908. Endemic to the Philippines. NEGROS. Photos 
  96. Begonia neopurpurea L.B.Sm. & Wassh., Phytologia 52 (1983) 4. --Begonia purpurea Elmer, LPB 10 (1939) 3707, nom. illeg., auct. non Sw.; --Type: Elmer 16565 (NY, iso), Luzon: Sorsogon prov., Mt. Bulusan, Jul-1916. Endemic to the Philippines. LUZON: Sorsogon. Photos
  97. Begonia nigritarum Steudel, Nomencl. (1821) 104; --Merr., EPFP 3 (1923) 126. --Begonia merrillii Warb. in Perkins, Frag. Fl. Philipp. (1904) 53. Endemic to the Philippines. Photos
  98. Begonia oblongata Merr., PJS 7 c (1912) Bot. 310; EPFP 3 (1923) 126; --Type: Merrill 8166 (US, iso), Mindanao: Zamboanga District, Nov/Dec-1911. Endemic to the Philippines. MINDANAO: Zamboanga. Photos
  99. Begonia obtusifolia Merr., PJS 14 (1919) 425; EPFP 3 (1923) 126; --Type: BS 30803 Ramos & Edaño (US, iso), Panay: Capiz prov., Mt. Macosolon. Endemic to the Philippines. PANAY: Capiz. On boulders in damp forests, c. 150m.
  100. Begonia oligantha Merr., PJS 10 c (1915) Bot. 50; EPFP 3 (1923) 126; --Type: BS 15733 Fenix (US, iso), Mindanao: Bukidnon prov. Endemic to the Philippines. MINDANAO: Bukidnon. Photos
  101. Begonia oxysperma DC., Ann. Sci. Nat. Bot. iv, 11 (1859) 122; --Merr., EPFP 3 (1923) 126. Endemic to the Philippines. LUZON: Mountain Province, Ifugao (Mt Polis), Benguet (Baguio; Mt Sto. Tomas), Rizal, Quezon (Mt Banahaw & San Cristobal), Laguna (Mt Makiling), MINDORO. Primary forests, on trees or cliffs, 400-1900m. Conservation status: Vulnerable (DAO 2017-11). Photos
  102. Begonia palawanensis Merr., PJS 6 c (1911) Bot. 380; EPFP 3 (1923) 126; --Type: BS 7232 Merrill (BM, lecto; B, BM, K, L, P, PNH, isolecto), Palawan: Puerto Princesa, Napsahan, c. 4m, 19-Sep-1910. Endemic to the Philippines. PALAWAN. Along small streams in low elevation primary forests. Conservation status: Endangered (DAO 2017-11). Photos
  103. Begonia palemlemensis Calaramo, C.W. Lin & Rubite, Phytotaxa 407 (2019) 38; --Type: Calaramo 13181 (HNUL, holo; PNH, iso), Luzon: Ilocos Norte Prov, Pagudpud, Kalbaryo Patapat Natural Park, 650m, 28-Jun-2018. Endemic to the Philippines. Conservation status: Vulnerable D2 (Calaramo et al. 2019).
  104. Begonia panayensis Merr., PJS 14 (1919) 428; EPFP 3 (1923) 127; --Type: BS 32309 McGregor (US, iso), Panay: Antique prov., Culasi, May/Aug-1918. Endemic to the Philippines. PANAY: Antique. Along shaded streams, c. 250m. Photos
  105. Begonia parva Merr., PJS 6 c (1911) Bot. 402; EPFP 3 (1923) 127; --Type: BS 5551 Ramos (US, iso), Luzon: Benguet prov., Rio Trinidad (Balili River), Dec-1908. Endemic to the Philippines. LUZON: Benguet (La Trinidad, along Balili River). On stream boulders, c. 1400m.
  106. Begonia parvilimba Merr., PJS 26 (1925) 481; EPFP 4 (1925) 250; --Type: BS 36936 Ramos & Edaño (US, iso), Mindanao: Zamboanga del Sur prov., Malangas, Oct/Nov-1919. Endemic to the Philippines. MINDANAO: Zamboanga del Sur.
  107. Begonia perryae L.B.Sm. & Wassh., Phytologia 52 (1983) 445. --Begonia robinsonii Merr., PJS 6 c (1911) Bot. 375, nom. illeg., auct. non Ridl.; --Type: BS 6340 Robinson, Luzon: Camarines Sur prov., Maagnas, 28-Aug-1908. Endemic to the Philippines. LUZON: Camarines. Low elevation forests.
  108. Begonia platyphylla Merr., PJS 10 c (1915) Bot. 46; EPFP 3 (1923) 127; --Type: BS 20074 McGregor (PNH, lecto; BM, K, P, US, isolecto), Luzon: Nueva Vizcaya prov., Jan-1913. Endemic to the Philippines. LUZON: Aurora, Nueva Vizcaya. Conservation status: Endangered (Rubite 2013; DAO 2017-11).
  109. Begonia polilloensis Tebbitt, Edinburgh J. Bot. 61 (2005) 99. Endemic to the Philippines. Photos
  110. Begonia polyclada C.I Peng, C.W.Lin & Rubite, Phytotaxa 296 (2017) 93; --Type: C.I Peng 23553 (PNH, holo; HAST, iso), Luzon: Aurora Prov., Baler, 25-Oct-2012. Endemic to the Philippines. LUZON: Aurora. Photos
  111. Begonia pseudolateralis Warb. in Perkins, Frag. Fl. Philipp. (1904) 55; --Merr., EPFP 3 (1923) 127; --Type: Warburg 11793 (B, holo; B, iso), Luzon: Isabela Prov. --Begonia aptera var. calleryana (A.DC.) Fern.-Vill., Fl. Filip. 4 (1880) 99; --Mezierea salaziensis var. calleryana A.DC., Prodr. 15 (1864) 408; --Type: Callery s.n. (P, holo), Luzon: Laguna Prov., Calauan, 1840. --Begonia lateralis Elmer ex Merr., EPFP 3 (1923) 127, nom. nud. Moluccas, Sulawesi, Philippines. Widespread in the Philippines. LUZON: Albay, Aurora, Cagayan, Camarines, Laguna, MINDANAO: Davao, Surigao, SAMAR. Conservation status: Least Concern (Rubite 2013). Photos
  112. Begonia quercifolia DC., Ann. Sci. Nat. Bot. iv, 11 (1859) 129; --Merr., EPFP 3 (1923) 127. Endemic to the Philippines.
  113. Begonia quinquealata C.I Peng, Rubite & C.W.Lin, PLOS ONE 13 (2018) e0194877:18; --Type: C.I Peng 24588 with C.I Huang, R.R. Rubite, E.P. Gironella, M.A. Suzuki, T.C.B. Cardona (PNH, holo; HAST, iso), Palawan: Puerto Princesa City, Brgy Napsan, Salakot Falls, c. 315m, 20-Dec-2014. Endemic to the Philippines. PALAWAN. Conservation status: Critically Endangered B2 abiii & v (Hughes et al. 2018). Photos
  114. Begonia ramosii Merr., PJS 6 c (1911) Bot. 388; EPFP 3 (1923) 127; --Type: Ramos 10942 (PNH, lecto; B, BM, isolecto), Luzon: Laguna Prov, San Antonio, Aug-1910. Endemic to the Philippines. LUZON: Laguna. Conservation status: Endangered (Rubite 2013; DAO 2017-11). Photos
  115. Begonia rizalensis Merr., PJS 6 c (1911) Bot. 388; EPFP 3 (1923) 127; --Type: BS 12109 Ramos (US, iso), Luzon: Rizal prov., San Isidro, Jun-1910. Endemic to the Philippines. LUZON: Rizal.
  116. Begonia rubiteae M.Hughes, Edinburgh J. Bot. 67(1) (2010) 134; --Type: R.R. Rubite 357 (PNH, holo; E, SING, iso), Philippines, Palawan, Busuanga Island, Coron municipality, Mabentangen Forest Park, 28-Feb-2007. Endemic to the Philippines. BUSUANGA. At streamsides at c. 100m. Conservation status: Endangered (DAO 2017-11). Photos
  117. Begonia rubrifolia Merr., PJS 14 (1919) 426; EPFP 3 (1923) 127; --Type: BS 32430 R.C. McGregor, Panay: Antique prov., Culasi, c. 1000m, 7-Jun-1918. Endemic to the Philippines. PANAY: Antique (Culasi). Forests, c. 1000m. Photos
  118. Begonia rufipila Merr., PJS 6 c (1911) Bot. 393; EPFP 3 (1923) 127; --Batuyong et al., Biodiversitas 21 (2020) 3973; --Type: FB 5665 Klemme (US, iso), Luzon: Ilocos Sur prov., Dolores (NB: this is now part of the province of Abra), 31-Oct-1906. Endemic to the Philippines. LUZON: Ilocos Norte, Ilocos Range along W Abra. Damp limestone boulders in shaded places, c. 200m. Photos
  119. Begonia samarensis Merr., PJS 30 (1926) 413; --Type: BS 43757 McGregor (NY, US, iso), Samar: Western Samar prov., Loquilocon, hillside forests, c. 250m. Jun-1924. Endemic to the Philippines. SAMAR (Loquilocon). Low elevation forests on limestone. 
  120. Begonia sarmentosa L.B.Sm. & Wassh., Phytologia 52 (1983) 4. --Begonia elegans Elmer, LPB 7 (1915) 2554; --Merr., EPFP 3 (1923) 122, nom. illeg., auct. non Kunth; --Type: Elmer 13672 (MO, NY 2 sheets, US, iso), Mindanao: Agusan del Norte prov., Cabadbaran, Mt Urdaneta, Cawilanan, 4250ft (1295m), Sep-1912. Endemic to the Philippines. MINDANAO: Agusan del Norte (Mt Urdaneta). Forested ravines, 1250m. Note by L.L.Co: Probably not distinct from the very close Begonia aequata A.Gray of Luzon. Photos
  121. Begonia serpens Merr., PJS 14 (1919) 427; EPFP 3 (1923) 128; --Type: BS 32588 McGregor (US, iso), Panay: Antique prov., May/Aug-1918. Endemic to the Philippines. PANAY.
  122. Begonia sorsogonensis Elmer ex Merr., EPFP 3 (1923) 121. Endemic to the Philippines. LUZON: Sorsogon.
  123. Begonia suborbiculata Merr., PJS 6 c (1911) Bot. 398; EPFP 3 (1923) 128; --Type: Merrill 7229 (BM, lecto; B, BM, K, P, US, isolecto), Palawan: Malampaya Bay, Sep-1910. Endemic to the Philippines. PALAWAN. On rock ledges in forest, c. 40m. Conservation status: Vulnerable (DAO 2017-11). Photos
  124. Begonia subprostrata Merr., PJS 26 (1925) 478; EPFP 4 (1925) 250; --Type: BS 36977 Ramos & Edaño (US, iso), Mindanao: Zamboanga del Sur prov., Malangas, Oct/Nov-1919. Endemic to the Philippines. MINDANAO: Zamboanga del Sur.
  125. Begonia subtruncata Merr., PJS 6 c (1911) Bot. 390; EPFP 3 (1923) 128; --Type: Loher 6076, Luzon: La Union (Castilla), Mar-1906. Endemic to the Philippines. LUZON: La Union. In forests.
  126. Begonia sykakiengii Rubite, C.I Peng, C.W.Lin & K.F.Chung, Botanical Studies 58 (2017) 28; --Type: C.I Peng 23836 with K.-F. Chung, C.I Huang, R.R. Rubite, L.L. Lastimosa & K. Lopez (PNH, holo; HAST, iso), Panay: Capiz Prov., Maayon, Brgy. Tapulang, Igang Cave, c. 15m, 22-Jun-2012. Endemic to the Philippines. PANAY. Conservation status: Endangered B2ab(iii) (Peng et al. 2017).
  127. Begonia tabonensis C.I Peng, Rubite & C.W.Lin, PLOS ONE 13 (2018) e0194877:20; --Type: C.I Peng 24538 with C.I Huang, R.R. Rubite, E.P. Gironella, M.A. Suzuki & T.C.B. Cardona (PNH, holo; HAST, iso), Palawan: Mun. Quezon, Lipuun Point, Tabon Cave, c. 30m, 13-Dec-2014. Endemic to the Philippines. PALAWAN. Conservation status: Least Concern (Hughes et al. 2018). Photos
  128. Begonia tagbanua M.Hughes, C.I Peng & Rubite, Botanical Studies 56 (2015) 19; --Type: C.I Peng 23471, with K.-F. Chung, C.I Huang, R.R. Rubite (PNH, holo; A, E, HAST, MO, iso), Palawan, Puerto Princesa, Puerto Princesa Subterranean River National Park, c. 35m, 2-Nov-2011. Endemic to the Philippines. PALAWAN. Photos
  129. Begonia tandangii C.I Peng & Rubite, Phytotaxa 145 (2013) 34; --Type: C.I Peng 23400 (HAST, holo), Luzon: Aurora, Baler, Barangay Zabali, 27-Oct-2011. Endemic to the Philippines. LUZON: Aurora. Conservation status: Vulnerable (DAO 2017-11). Photos
  130. Begonia taraw C.I Peng, Rubite & M.Hughes, Botanical Studies 56 (2015) 19; --Type: C.I Peng 23464, with K.-F. Chung, C.I Huang, R.R. Rubite (PNH, holo; E, HAST, iso), Palawan: Puerto Princesa, Puerto Princesa Subterranean River National Park, c. 5m, 2-Nov-2011. Endemic to the Philippines. PALAWAN. Conservation status: Vulnerable D2 (Rubite et al. 2015). Photos
  131. Begonia tayabensis Merr., PJS 13 c (1918) Bot. 38; EPFP 3 (1923) 128; --Type: BS 29054 Ramos & Edaño (NY, US, iso), Luzon: Tayabas prov., May/Jun-1917. Endemic to the Philippines. LUZON: Tayabas.
  132. Begonia tenuibracteata C.I Peng, Rubite & C.W.Lin, PLOS ONE 13 (2018) e0194877:23; --Type: C.I Peng 23452 with K.-F. Chung, C.I Huang & R.R. Rubite (PNH, holo; HAST, iso), Palawan: Puerto Princesa City, Brgy Napsan, Salakot Falls, c. 180m, 1-Nov-2011. Endemic to the Philippines. PALAWAN. Conservation status: Endangered (Hughes et al. 2018).
  133. Begonia titoevangelistae Tandang & Rubite, Phytotaxa 282 (2016) 276; --Type: D.N. Tandang 1994 (PNH, holo; CAHUP, iso), Catanduanes: Catanduanes Prov., Mun. Gigmoto, Brgy. San Pedro, Nahulugan Falls, moist rocks under trees and shrubs near the waterfalls, elevation c. 93m, 28-June-2015. Endemic to the Philippines. CATANDUANES. Conservation status: Critically Endangered (Tandang et al., 2016). Photos
  134. Begonia trichochila Warb. in Perkins, Frag. Fl. Philipp. (1904) 53; --Merr., EPFP 3 (1923) 128. Endemic to the Philippines. LUZON: Rizal. Photos
  135. Begonia truncatifolia R.Bustam., Tandang, Pranada & Y.P.Ang, Phytotaxa 458 (2020) 217; --Type: Camangeg & Bustamante 0003 (PNH, holo; PPC, FEUH, iso), Palawan: San Vicente, Brgy New Agutaya, 250m, 20-Aug-2019. Endemic to the Philippines. PALAWAN. Conservation status: Critically Endangered B2ab(iii) (Bustamante et al. 2020). Photos
  136. Begonia urdanetensis Elmer, LPB 7 (1915) 2559; --Merr., EPFP 3 (1923) 128; --Type: Elmer 13819 (NY, MO, US, iso), Mindanao: Agusan del Norte prov., Mt. Urdaneta, Sep-1912. Endemic to the Philippines. MINDANAO: Agusan del Norte. Primary forests, c. 1500m.
  137. Begonia vanoverberghii Merr., PJS 6 c (1911) Bot. 403; EPFP 3 (1923) 128. Endemic to the Philippines.
  138. Begonia wadei Merr. & Quisumb., Addisonia 17 (1932) 57; --Type: BS 78301 W.H. Brown (NY, lecto), Coron Island, Dec-1929. Endemic to the Philippines. CORON. Near the coast on exposed coralline limestone.
  139. Begonia weberi Merr., PJS 6 c (1911) Bot. 381; EPFP 3 (1923) 128; --Type: Weber 1210, Mindanao: Agusan del Norte prov., Mt Hilong-hilong, rocky slopes in ravines, c. 450m. Endemic to the Philippines. MINDANAO: Agusan del Norte (Mt Hilong-hilong). Rocky slopes in forested ravines, c. 450m.
  140. Begonia wenzelii Merr., PJS 10 c (1915) Bot. 277; EPFP 3 (1923) 128. Endemic to the Philippines.
  141. Begonia wilkiei Coyle, Edinburgh J. Bot. 67 (2010) 138; --Type: cult. Royal Botanic Garden Edinburgh acc. no. 19980279, grown on from R. Fuentes, R.V. Chavez, G. Argent, Q. Cronk, M. Mendum, P. Wilkie & D. Middleton 25416, 21-Jan-1998, vouchered in 2007 as C. Coyle s.n. (E, holo; SING, iso), Palawan: Cleopatra's Needle. Endemic to the Philippines. PALAWAN. c. 960m. Conservation status: Vulnerable (DAO 2017-11).
  142. Begonia woodii Merr., PJS 26 (1925) 478; EPFP 4 (1925) 250; --Type: Merrill 11589 (L, lecto; B, P, US, isolecto), Palawan: Malampaya Bay (Sound), 8-Oct-1922. Endemic to the Philippines. PALAWAN. Primary forests on cliffs, c. 50m. Conservation status: Vulnerable (DAO 2017-11). Photos
  143. Begonia zamboangensis Merr., PJS 26 (1925) 481; EPFP 4 (1925) 250; --Type: BS 37371 Ramos & Edaño (US, iso), Mindanao: Zamboanga del Sur prov., Malangas, Nov-1919. Endemic to the Philippines. MINDANAO: Zamboanga del Sur (Malangas). Forested small stream banks at low elevation.
Dubious taxon:
  1. Begonia porteana van Geert, Cat. (1881) 90, descriptione inchoata; --L.B.Sm. et al., Smiths. Contr. Bot. no. 60 (1986) 218. Endemic to the Philippines.

Excluded species:

  1. Begonia subnummularifolia Merr., PJS 29 (1926) 403; --Type: from Borneo. Borneo. Note by P.B. Pelser (24-Jun-20): This species was reported for the Philippines in a previous version of this checklist, with reference to Merrill 5375 (B, NY, P) from Balabac. However, Hughes et al. (2010) identified this specimen as Begonia mindorensis Merr. It is, however, not impossible that Begonia subnummularifolia will be found in Balabac in the future (Hughes, pers. comm. 24-Jun-20).

Acknowledgements

Ang Yu Pin, Jonah van Beijnen, Dave Buenavista, Raab Bustamante, Derek Cabactulan, Will Cabanillas, Michael Calaramo, John Rey Callado, Alma Gamil, Alvin Goloran, Ariel Revilleza Larona, Jayson Mansibang, Kean Roe Mazo, Andrew Pranada, Mark Gregogy Q. Rule, Ravan Schneider, Kurt Tan, and Danilo Tandang kindly provided some photographs of Begonia. Raab Bustamante and Alastair Robinson pointed out some errors and omissions in the checklist. Mark Hughes provided taxonomic data.

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Elmer, ADE. 1910. New species of Begonia. Leaflets of Philippine Botany 2: 735-740.

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Pranada, MAK, CJS Luna, MP Mendez & ME Calapatia-Salvador. 2019. Begonia depressinerva (sect. Baryandra, Begoniaceae), a new species from Luzon Island, the Philippines. Phytotaxa 425: 154-162.

Rubite, RR. 2012. Delimitation of Begonia L. Sections Diploclinium and Baryandra (Begoniaceae) in the Philippines. Asia Life Sciences 21: 363-373.

Rubite, RR. 2013. Begonia section Petermannia of Luzon Island, the Philippines. Philippine Journal of Science 142: 183-197

Rubite, RR & DA Madulid. 2009. The rediscovery of Philippine Begonia. Blumea 54: 267-268

Rubite, RR, M Hughes, GJD Alejandro & C-I Peng. 2013. Recircumscription of Begonia sect. Baryandra (Begoniaceae): evidence from molecular data. Botanical Studies 54: 38

Rubite, RR, M Hughes, P Blanc, K-F Chung, H-A Ang, Y Kono, GJD Alejandro, LB De Layola, AGN Virata & C-I Peng. 2015. Three new species of Begonia endemic to the Puerto Princesa Subterranean River National Park, Palawan. Botanical Studies 56: 19

Rubite, RR, C-I Peng, K-F Chung, C-W Lin, LT Evangelista, DN Tandang, JRC Callado & M Hughes. 2018. Three new species of Begonia (section Baryandra, Begoniaceae) from Luzon Island, the Philippines. Phytotaxa 347: 201-212.

Rubite, RR, ML Irabagon, DJE Palacio, YP Ang & RAA Bustamante. 2020. Begonia caramoanensis (sect. Baryandra, Begoniaceae) a new species from Camarines Sur, Philippines. Phytotaxa 439: 287-294.

Rule, MGQ, YP Ang, RR Rubite, RVA Docot, RAA Bustamante & AS Robinson. 2020. Begonia makuruyot (Begoniaceae, section Baryandra), a new species from Surigao del Norte Province, Philippines. Phytotaxa: 470: 226-234.

Smith, LB, DC Wasshausen, J Golding & CE Karegeannes. 1986. Begoniaceae. Part. I: Illustrated Key; Part II. Annotated species list. Smithsonian Contributions to Botany no. 60: 1-584.

Tandang, DN, RR Rubite, RT Angeles Jr. & MC de Guzman. 2016. Begonia titoevangelistae (sect. Baryandra, Begoniaceae) a new species from Catanduanes Island, the Philippines. Phytotaxa 282: 273-281.

Pelser, P.B., J.F. Barcelona & D.L. Nickrent (eds.). 2011 onwards. Co's Digital Flora of the Philippines. www.philippineplants.org

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Last updated 21 April 2021