40 X. DioscoREACE.E. [Dioscorea 



Apparently near the West African D. colocasicffoUa Pax {^.c, 

 p. 145), but distinguished by its not winged stem and very 

 characteristic more isodiametrical leaf. 



10. D. sp. 



Leaves only. Stem leaf-stalks and leaves shortly ferruginously 

 tomentose. Leaves opposite, simple, stalk about half the length 

 of the blade, blade 7-nerved, orbicular-cordate, apex shortly 

 abruptly acuminate. 



SiEKUA Leone.— Sept. 1853. No. 4043. 



Leaves palmately compound. 



11. D. triphylla Schimp. ex Kunth, I.e., p. 436 (non L.). 



Var. tomentosa Rendle var. nov. distinguished by the densely 

 softly tomentose lower leaf- face. 



GoLUNfio Alto. — Somewhat plentiful in thickets at the openings of 

 woods. Near Bango. In fl., male and female, and fr. Feb. and June 

 1856. No. 4052. 



Sierra Leone. — A high chmbing herb, apparently dioecious. Here 

 and there in places once cultivated near Freetown. Sept. 1853. 

 No. 4051. 



12. D. sp. 



GOLUXGO Alto. — A suffruticose widely climbing herb with bifolio- 

 late leaves covered beneath with a white tomentum. Fruiting racemes 

 pendulous. Fruit triangular. Seeds winged. Sange, 1856. Coll. 

 Carp. 1009. 



Apparently near D. triphylla Schimp. 



13. D. sp. 



Genus probabilit. novum Welw, Apont. p. 587, No. 41 (1859). 



GoLUNGO Alto. — A new genus of Dioscoreacese, certainly not 

 recorded for the Niger Flora. Suffruticose, climbing, trifoliolate, with 

 broad hairy leaflets. Flowers not examined. A great ornament in 

 woody thickets. August 1857. Coll. Carp. 1010. 



Material consists only of broken capsules and seeds. The capsules 

 resemble those of D. triphylla Schimp. The seeds are \\ in. long, 

 brown with a delicate membranous light brown translucent bluntly 

 linear-oblong unilateral wing. 



14. D. ftuartiniana Rich. Tent. Fl. Abyss, ii. p. 316, t. 96a 

 (1851); Durand & Schinz, I.e., p. 275. 



D. Quartiniana var. lloclistetteri Engl. ITochgeb. Trop. Afr. 

 p. 172 (1892) ; Durand & Schinz, I.e. Var. pentadactpla Pax, I.e., 

 p. 148 ; Durand & Schinz, I.e. D. pentadactyla Welw. ex Pax, 

 I.e., p. 149. 



GoLUNGO Alto. — An undershrub, stem woody at the base, widely 

 climbing, leaves 5- to 3-foliolate, with bulbils in the axils of the curved 

 deflexed petioles. Leaflets densely marked with pellucid striae. 

 Flowers not seen. Very dense thickets by the spring of Quinque- 

 lequ('le. End of Dec. 1855. No. 4046. D. pciitadac(>ilu Welw. ? . In 

 thickets among the palms by the river Cuango near Sanche ; Feb. 

 1856. No. 4047. A dioecious plant with tuberculated rhizome, 

 Quilombo, Feb. 1855. No. 4048. A climbing herb with the old stem 

 subsbrubby, leaves alternate ?>- to 5-foliolate, root tuberous. Flowers 

 green in strobiliform spikes protected by bracts which are concave at the 



