40 CXXIIIc. MORACEZ (Rendle). [ Dorstenia. 
apex obtuse, base somewhat obtuse, about 4 in. long and 13-1? in. 
wide; lateral nerves 8 on each side, curving upwards and uniting 
within the margin; petiole barely 4 in. long. Receptacle oblong, 
with a margin 1 lin. broad, 3 in. long, 5 lin. broad, bearing a filiform 
bract-arm at each end, the apical 2 in., the basal 1} in. long, and 
numerous intervening linear bracts about 4 lin. long; peduncle 
about 3 in. long. 
Lower Guinea. Spanish Guinea: Bebai, Tessman, 701. 
23. D. Zenkeri, Engl. Monogr. Morac. Afr., 14. t. vii. C. Stem 
woody below, herbaceous above, 9-16 in. high, bearing in the upper 
part a dense short pubescence mixed with longer hairs; inter- 
nodes rather long, 14 to nearly 2 in. below and 3-1} in. in the upper 
portion of the stem. Leaves papery when dry, elliptic to obovate- 
elliptic, tapering more or less to the acuminate apex and to the 
subobtuse base, margin undulate, 5-64 in. long, 13-22 in. wide, 
glabrous, dull green above, paler beneath ; lateral nerves generally 
7-8 on each side, curving gently upwards and uniting near the 
margin ; petiole 3-1? in. long. Stipules triangular, acute, deciduous, 
1-1} lin. long. Inflorescence solitary, sometimes in pairs; stalk 
slender, varying in length from }-3 in. ; receptacle face subrhomboid 
to oblong, deep-purple, about 4 in. in its longest diam., with a narrow 
margin passing into a varying number of very unequal linear bracts, 
including 2-4 very long (up to 4 in.). Male flowers 2—3-androus ; 
female scattered through the receptacle ; ovary ovoid, passing into a 
long 2-fid style. 
Upper Guinea. Cameroons: Bipinde, Zenker, 1042! 3171! 3956! 4486! 
24. D. usambarensis, Hngl. in Engl. Jahrb. xxxiii. 114. Stem 
herbaceous, 8-16 in. high, in the upper part very shortly puberulous, 
as are the petioles, peduncles and receptacles ; internodes 3-1} in. 
long below, 14-4 lin. above. Leaves membranous, oblong with an 
acute base, margin entire or remotely undulate or with a few large 
teeth, 24-4 in. long, 14-2 in. wide; lateral nerves 5 on each side, 
ascending and passing into the teeth; petiole barely } in. long. 
Receptacle bright green, subrhomboid, about 4 lin. in diam. ;_ bract- 
arms linear, generally 4, the longer barely 4 in. long, 4 smaller 
23~3$ lin. long, and 8 very short and tooth-like scarcely lin. long ; 
peduncle barely 4 in. long. Fruit with a crustaceous warted endocarp. 
Mozamb. Distr. German East Africa: Usambara; Nquelo, on the Ngambo- 
road in primitive forest, Scheffler, 43. 
25. D. Solheidi, De Wild. Etudes Fl. Bas- et Moyen-Congo, iii. 65. 
Stems herbaceous, 6-12 in. high, ascending from a cylindrical woody 
creeping rhizome 1 lin. thick; stem, rhizome and petiole densely 
hirtellous, hairs brownish, short, intermixed with longer. Leaves 
