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Dioscoreaceae

including Taccaceae

Dioscorea L.

Edited by Pieter B. Pelser, 11 November 2016

Photos
  1. Dioscorea alata L., Sp. Pl. (1753) 1033; --Merr., Fl. Manila (1912) 151; EPFP 1 (1922) 215; --Burkill,   Fl. Males. ser. 1, 4 (1951) 330. Native of continental Asia and cultivated all over Malesia. Photos
  2. Dioscorea bulbifera L., Sp. Pl. (1753) 1033; --Merr., Fl. Manila (1912) 151; EPFP 1 (1922) 215; --Burkill, Fl. Males. ser. 1, 4 (1951) 311, Fig. 4a-b, 5f. Photos
  3. Dioscorea cumingii Prain & Burkill, J. As. Soc. Beng. ii, 4 (1908) 449; --Merr., EPFP 1 (1922) 216; --Burkill, Fl. Males. ser. 1, 4 (1951) 317, Fig. 5j. --Dioscorea echinata Knuth in Engl. Pflanzenreich 87 (1924) 148; --Merr., EPFP 4 (1925) 242.
  4. Dioscorea divaricata Blanco, Fl. Filip. (1837) 797; --Merr., EPFP 1 (1922) 216; --Burkill, Fl. Males. ser. 1, 4 (1951) 332, Fig. 5q. --Dioscorea oxyphylla Knuth in Engl. Pflanzenreich 87 (1924) 269; --Merr., EPFP 4 (1925) 242. --Dioscorea soror Prain & Burkill in Elmer, LPB 5 (1913) 1598; --Merr., EPFP 1 (1922) 219. --Dioscorea soror var. glauca Prain & Burkill, J. As. Soc. Beng. ii, 10 (1914) 34; --Merr., EPFP 1 (1922) 219. Endemic to the Philippines. LUZON: Ilocos Norte, Mountain Province, Pangasinan, Pampanga, Bataan, Bulacan, Rizal, Laguna, Quezon, PANAY, CEBU. Low and medium altitude thickets and secondary forests.
  5. Dioscorea elmeri Prain & Burkill in Elmer, LPB 5 (1913) 1594; --Merr., EPFP 1 (1922) 216; --Burkill, Fl. Males. ser. 1, 4 (1951) 317, Fig. 5i; --Type: Elmer 9156 (K, lecto; CAL, GH, isolecto), Luzon: Lucban, Tayabas Island, May-1907. BATANES, LUZON: Laguna, Quezon, SAMAR. Low elevation everwet forests, to 800m.
  6. Dioscorea esculenta (Lour.) Burkill, Gard. Bull. Straits Settl. 1 (1917) 396; --Merr., Fl. Manila (1912) 151; EPFP 1 (1922) 216; --Burkill, Fl. Males. ser. 1, 4 (1951) 307, Fig. 5c, 6a. India to Malesia and Polynesia, native only to Thailand and Indochina. BATANES, LUZON: La Union, Benguet, Cagayan, Nueva Vizcaya, Pangasinan, Bataan, Bulacan, Rizal, Laguna, SEMIRARA. Low elevation thickets and secondary forests. Also often cultivated.
  7. Dioscorea filiformis Blume, Enum. Pl. Jav. 1 (1827) 22; --Merr., EPFP 1 (1922) 217; --Burkill, Fl. Males. ser. 1, 4 (1951) 329, Fig. 4g. Peninsular Thailand, Peninsular Malaysia, NE Sumatra, Philippines, Java, Lesser Sunda Isls, Moluccas. LUZON: Nueva Ecija, Bataan, Rizal, Laguna, Batangas, CULION, PALAWAN, JOLO. Low altitude thickets and ravines.
  8. Dioscorea flabellifolia Prain & Burkill in Elmer, LPB 5 (1913) 1593; --Merr., EPFP 1 (1922) 217; --Burkill,  Fl. Males. ser. 1, 4 (1951) 309, Fig. 5d; --Type: Elmer 9095 (B, lecto; CAL, isolecto), Luzon: Tayabas. Palau, Borneo (Sabah), Philippines. LUZON: Laguna, Sorsogon, CATANDUANES, MINDORO. Low and medium altitude humid forests. Photos
  9. Dioscorea grata Prain & Burkill, J. As. Soc. Beng. ii, 10 (1914) 35; --Merr., EPFP 1 (1922) 217; --Burkill, Fl. Males. ser. 1, 4 (1951) 328; --Type: Loher 7017 (K, lecto), Luzon: Rizal, Montalban. Philippines, NW New Guinea. LUZON: Rizal. No Philippine data on habitat, but in New Guinea reported at 300m in Agathis forest.
  10. Dioscorea hispida Dennst., Schlüssel Hort. Malabar. (1818) 33; --Merr., EPFP 1 (1922) 217; --Burkill, Fl. Males. ser. 1, 4 (1951) 318, Fig. 5k-n, 6c. Photos
  11. Dioscorea loheri Prain & Burkill, J. As. Soc. Beng. ii, 10 (1914) 33; --Merr., EPFP 1 (1922) 217; --Burkill,  Fl. Males. ser. 1, 4 (1951) 332. Endemic to the Philippines. LUZON: Rizal. Low elevation thickets. According to Merrill (1922, loc. cit.) perhaps referable to D. divaricata Blanco.
  12. Dioscorea luzonensis Schauer, Nov. Act. Acad. Nat. Cur. 19 (1843) Suppl. 1: 444; --Merr., EPFP 1 (1922) 218; --Burkill, Fl. Males. ser. 1, 4 (1951) 325, Fig. 4f. Endemic to the Philippines. LUZON: Ilocos Norte, Ilocos Sur, La Union, Mountain Province, Nueva Vizcaya, Bulacan, Rizal, Laguna, Batangas, Quezon, PALAWAN. Chiefly at low and medium altitude thickets. Common in the provinces near Manila where there are two drier breaks in the year. Flowering September or earlier.
  13. Dioscorea merrillii Prain & Burkill in Elmer, LPB 5 (1913) 1598; --Merr., EPFP 1 (1922) 218; --Burkill, Fl. Males. ser. 1, 4 (1951) 332. Endemic to the Philippines. MINDORO, MINDANAO: Davao (Mt Apo). Old clearings and thickets, altitude c. 700m.   
  14. Dioscorea nummularia Lam., Encycl. Meth. 3 (1789) 231; --Merr., EPFP 1 (1922) 218; --Burkill, Fl. Males. ser. 1, 4 (1951) 331. --Dioscorea nummularia var. glauca Prain & Burkill, J. As. Soc. Beng. ii, 10 (1914) 35; --Merr., EPFP 1 (1922) 218. Pacific as far as Tahiti (where perhaps an introduced plant) to E Malesia, westward to N corner of Borneo and Sulawesi, and the Philippines. Not yet recorded from the Lesser Sunda Isls. LUZON: Mountain Province to Sorsogon, in most or all provinces, POLILLO, LEYTE, CAMIGUIN, MINDANAO, BASILAN. Low and medium altitude thickets.
  15. Dioscorea palawana Prain & Burkill, Kew Bull. (1925) 59; --Merr., EPFP 4 (1925) 242; --Burkill, Fl. Males. ser. 1, 4 (1951) 305. Endemic to the Philippines. N PALAWAN.
  16. Dioscorea pentaphylla L. Sp. Pl. (1753) 1032; --Merr., Fl. Manila (1912) 152; EPFP 1 (1922) 218; --Burkill, Fl. Males. ser. 1, 4 (1951) 315, Fig. 5g, 6c.
  17. Dioscorea peperoides Prain & Burkill in Elmer, LPB 5 (1913) 1597; --Merr., EPFP 1 (1922) 219; --Burkill, Fl. Males. ser. 1, 4 (1951) 325; --Type: Elmer 6399 (NYBG, lecto; CAL, isolecto), Luzon: Benguet, Twin-peaks, May-1904.

Excluded and doubtful species:

  1. Dioscorea mindanaensis Knuth in Engl. Pflanzenreich 87 (1924) 271; --Merr., EPFP 1 (1925) 242. “The name is virtually a nomen nudum, the scrap of which it was given being inadequate even for the establishment of the section. But it is interesting to know that a Dioscorea occurs on the E slopes of Mt Apo in MINDANAO (S Philippines) at that considerable height of 2000m.” --Burkill, FM ser. 1, 4 (1951) 335. Endemic to the Philippines.
  2. Dioscorea wilkesii Uline ex Knuth in Engl. Pflanzenreich 87 (1924) 271; --Merr., EPFP 4 (1925) 242. LUZON (Laguna, Los Banos), Wilkes Expedition s.n. Apparently unaccounted for in Burkill’s FM revision.

Stenomeris Planch.

Edited by Pieter B. Pelser, 11 November 2016

Photos
  1. Stenomeris borneensis Oliv. in Hook., Icon. Pl. 4 (1894) t. 2328; --Burkill, Fl. Males. ser. 1, 4 (1951) 297, Fig. 1 l-m. --Stenomeris mindanaensis Knuth in Engl. Pflanzenreich 87 (1924) 345; --Merr., EPFP 1 (1925) 242. Sumatra (E Coast), Peninsular Malaysia, Borneo, Philippines. MINDANAO.
  2. Stenomeris dioscoreifolia Planch., Ann. Sci. Nat. Bot. iii, 18 (1852) 320; --Merr., EPFP 1 (1922) 219; --Burkill, Fl. Males. ser. 1, 4 (1951) 295, Fig. 1b-k. --Stenomeris cumingiana Becc., Nuov. Giorn. Bot. Ital. 2 (1870) 8, t. 2; --Merr., EPFP 1 (1922) 219. Stenomeris --wallisii Taubert in Engl., Bot. Jahrb. 15 (1893) Beibl. 38: 2; --Merr., EPFP 1 (1922) 220. Endemic to the Philippines. Photos

Tacca J.R.Forst. & G.Forst.

Photos
  1. Tacca leontopetaloides (L.) Kuntze, Rev. Gen. Pl. 2 (1891) 704; --Drenth, Blumea 20 (1972) 375, pl. 1, Fig. 1-7; Fl. Males. ser. 1, 7 (1976) 809. --Tacca pinnatifida J.R.Forst. & G.Forst., Char. Gen. (1776) 70, t. 35; --Merr., Fl. Manila (1912) 150; EPFP 1 (1922) 215. Photos
  2. Tacca palmata Blume, Enum. Pl. Jav. 1 (1827) 83; --Merr., Fl. Manila (1912) 150; EPFP 1 (1922) 214; --Drenth, Blumea 20 (1972) 397, pl. 2, Fig. 10-15; Fl. Males. ser. 1, 7 (1976) 814. --Tacca elmeri Krause in Elmer, LPB 6 (1914) 2283; --Merr., EPFP 1 (1922) 214. Photos

Literature

Caddick, LR & P Wilkin. 1998. A revision of the genus Stenomeris (Dioscoreaceae). Kew Bulletin 53: 703-712.

Burkill, IH. 1951. Dioscoreaceae. Flora Malesiana series 1, 4: 293-336

Drenth, E. 1976. Taccaceae. Flora Malesiana series 1, 7: 806-819


Hsu, KM, JL Tsai, MY Chen, HM Ku & SC Liu. 2013. Molecular phylogeny of Dioscorea (Dioscoreaceae) in East and Southeast Asia. Blumea 58: 21-27


Pagare, RS & W Arisdason. 2016. Lectotypification in the genus Dioscorea L. (Dioscoreaceae). Webbia 71: 73-81.

Copyright © 2011, Co's Digital Flora of the Philippines

Last updated 11 November 2016