DIOSCOREACEAE. 



DIOSCOREA Linn. 



Dioscorea cayennensis Lam. Enc. III. 323. 



Upper Gonini River : Versteeg 152 ^ (fl. Aug.) 

 French Guyana, Northern Brazil. 



Dioscorea amazonum Mart. Mss. ex Griseb. Flora Bras. III. i. p. 39. 



Upper Tapanahoni River: Versteeg 913 cf (A- Octob.). 



Para River, near Plant, la Prosperite : Focke 1020 (fl. Sept.). 



Surinam: Hostmann 883 in Hb. Rheno Traj. named by Miquel : Dios- 

 corea surinamensis Miq. and by Kunth ; Dioscorea elegantula Kth- 

 Enum V. p. 366. 



Northern Brazil. 



Dioscorea polygonoides M. B. K. Nov. Gen. et Spec. I. 274. 

 Paramaribo: Focke 781 J' (fl. April). 



Paramaribo, near Plant. Quarta : Kegel 442 and 958 9 named : Dios- 

 corea Kegeliana Grisebach Linnaea XXI. p. 279. 

 Surinam : Hostmann 906 in Herb. Rheno Traj. and in H. L. B. 903, 



322—81. 

 Northern Brazil, Guyana. 



Dioscorea trifida Linn. f. Suppl. 427. 



Upper Tapanahoni River, near Drie Tabbetje : Versteeg 695 9 C^- 

 July). 



Paramaribo: Focke 1109 ^^ (fl. May). 



Paramaribo , near plant. Quarta : Kegel 903 (fl. June) ; Hostmann Hb. 

 Rheno-Traj. 767 ; Hostmann H. L. B, 903, 322—327 ; Focke 618, 

 named: Dioscorea truncata Miq. Linnaea XVIII p. 23; Hostmann 

 555 ^= Dioscorea affinis Kunth Enum V. p. 372. 



Cultivated in the colony. Vernacular name: »Napi". 



Guyana. 



