418 CXXXIX, DIOSCOREACEE (BAKER). [ Dioscorea. 
11. D. sansibarensis, Pax in Engl. Jahrb. xv. 146. Whole 
plant glabrous. Stems slender, climbing, terete. Leaves opposite, 
simple, distinctly petiolate, cordate-orbicular, conspicuously cuspidate, 
2-21 in. long, about 2 in. broad, 7-nerved, bearing large verrucose 
bulbille in their axils. Male spikes 2—4-nate, 6—8 in. long; flowers 
remote; bracts and bracteoles ovate. Perianth-segments oblong, 
obtuse. Fertile stamens 6. Female flowers and fruit unknown.— 
Harms in Engl. Pfl. Ost-Afr. C. 146. 
Mozamb. Dist. German East Africa: Bagamoyo, Hildebrandt, 1742! 
No specimen at Kew. 
12. D. prehensilis, Benth. in Hook. Niger Fl. 536. Glabrous in 
all its parts. Stem slender, woody, twining, sometimes prickly. Leaves 
usually opposite, distinctly petiolate, simple, ovate, cuspidate, shallowly 
cordate, 2-4 in. long, moderately firm, 5-nerved from the apex of the 
petiole, Male flowers in densely fascicled lax spikes 2-3 in. long ; 
bracts ovate, very small. Perianth A in. long; segments oblong, 
obtuse. Fertile stamens 6. Female flowers in lax spikes. Capsule 
glabrous, 1-13 in. diam., 4-3 in. long, with three acute lobes, Seeds 
orbicular, winged all round —D. odoratissima, Pax in Engl. Jahrb. 
xv. 146. 
Upper Guinea. Sierra Leone, Vogel, 21! Liberia, Carder! Togoland : 
Bismarckburg, Büttner, 104! Niger Territory : Nupe, Barter, 1057! 1536! by the 
River Niger at Jeba, Barter! and at Attah, Vogel, 86! Cameroons: Yaunde, 
Zenker, 329! 
Lower Guinea. Island of St. Thomas, Quintas, 105! Newton! Gaboon : 
River Muni, Mann, 1751! Congo: Bangala, 1000-1500 ft., Hens, 174! and without 
precise locality, Smith! Angola: Golungo Alto, Welwitsch, 4035! 4036 ! 
South Central. Lunda: Bashilange ; Mukenge, Pogge, 1043. 
Mozamb. Dist. British Central Africa: Nyasaland, Buchanan, 531! 
Var. minutiflora, Baker. Leaves more coriaceous, more orbicular and rarely 
cordate at the base, usually broadly rounded.—D. minutiflora, Engl. Jahrb. vii. 332. 
-D. multiflora (by error), Pax in Engl. Jahrb, ze, 146, t. 8. 
Upper Guinea. Sierra Leone: near Regent, Scott-Elliot, 4026 ! in bush about 
Sierra Leone, Scott-Elliot, 4157! and near Lester Peak, Scott-Elliot, 4171! Ashanti: 
Assin-Yan-Coomassie, Cummins! Lagos: Ido Island, Millen, 48 of 1893 collection! 
and without precise locality, Moloney ! Old Calabar River, Mann, 2283! Cameroons: 
Mungo, Buchholz, between Barombi and Kumba, Preuss, 54! 
Lower Guinea. Gaboon: Gaboon River, Mann, 975! 
Very near D. abyssinica, Hochst. and perhaps not specifically distinct. 
13. D. abyssinica, Hochst. ex Kunth, Enum. v. 387. Whole 
plant glabrous. Stems slender, twining, unarmed. Leaves often 
opposite, distinctly petiolate, ovate, acuminate, deeply cordate at the 
base, distinctly 7-nerved from the apex of the petiole, membranous, 
3-4 in. long. “Male flowers in short lax densely fascicled spikes 1-2 m. 
long; bracts ovate, very small, Perianth ;), in. long ; segments ovate, 
obtuse. Fertile stamens 6. Female flowers in long lax spikes. ` eg 
orbicular, deeply lobed, 1-1} in. diam. Seeds orbicular, winged al 
round.—A. Rich. Tent. PL Abyss. ii. 318; Schweinf. in Bull. = 
Boiss. ii. App. ii. 84. 
