Dorstenia. | CXXIIIc. MORACEH (Rendle). 63 
and young leaves; stalk }-? in. long, stout, becoming thicker 
above, shortly tomentose as is the convex back of the receptacle ; 
disc flat, orbicular, 6-9 lin. in diam.; bract-arms springing from 
beneath a narrow closely crenate margin, spreading, 2-5, subequal, 
linear-spathulate, obtuse, shortly tomentose, 3-5 lin. long, 3-1 lin. 
broad towards the apex. Male flowers 2-3-androus, with a correspond- 
ing number of broad perianth-lobes ; female numerous ; style 4 lin. 
long, minutely 2-fid at the apex. Fruit subglobose, endocarp verru- 
culose.—Th. & Hél. Durand, Syll. Fl. Congol. 502. D. Rosenii, 
R. E. Fries in Arkiv. Bot. xiii. no. 1. 14, t. 2, fig. 5, and in Wiss. 
Ergebn. Schwed. Rhodes.-Kongo-Exped. 1911-12, i. 13. 
South Central. Belgian Congo: Upper Marungu; Lake Tanganyika, 
Debeerst ! 
Mozamb. Distr. Rhodesia: Mukanshi River, between Lakes Bangweolo and 
Tanganyika, Fries, 1125. 
Var. multibracteata, Rendle. Bract-arms generally 8 in number, often 
6-8 lin. long.—D. Rosenii, var. multibracteata, R. E. Fries, ll.cc. 15 and 13. 
Mozamb. Distr. German East Africa: Urundi, 4000-5000 ft., Scott Elliot, 
8207! Rhodesia: Abercorn, Fries, 1125a. 
74. D. benguellensis, Welw. in Trans. Linn. Soc. xxvii. 71. 
Perennial by means of a fleshy depressed-globose or placentiform 
tuber 1-14 in. in diam., rich in latex; surface warty and 
emitting fibrous roots; stem solitary, erect, succulent, cylindrical, 
unbranched or with a few short leafy branchlets, 3-14 ft. high, covered 
when young with dense whitish pubescence, bearing short scale- 
leaves below, leafy above; internodes 3-1} in. long, becoming 
shorter towards the densely leaved apex. Leaves when fully developed 
subsessile or very shortly stalked, oblong-lanceolate to elliptic, apex 
blunt to subacute, more or less tapering to the base, margin shortly 
toothed, 1-24 in. long, 4-9 lin. wide, shortly and softly hirtellous, 
especially on the nerves ; lateral nerves 7-10 on each side, ascending. 
Stipules linear-lanceolate, generally deciduous, rarely exceeding 
1 lin. in length. Inflorescences solitary, axillary ; stalk firm, varying 
in length from 2-6 lin., increasing sometimes to 10 lin. in the fruit, 
like the convex outside of the yellowish-green receptacle glabrescent 
or sparsely puberulous ; disc orbicular, 3-6 lin. in diam., increasing 
in the fruit, with a narrow shortly toothed margin and bearing 
from below (outside) the margin a whorl of slender linear bract- 
arms, varying considerably in number and length in different 
Specimens, from 7-15 in number and from 3-8 (rarely to 10) lin. in 
length, sometimes slightly dilated at the tip. Male flowers 2-androus ; 
perianth with two broadly truncate opposite lobes ; female scattered 
over the disc; style shortly 2-fid. Pericarp after expulsion of 
the endocarp elongating and forming a stalked 2-valved fleshy 
structure projecting above the male flowers ; endocarp grey-white, 
globose-triquetrous, finely warted, $3 lin. in diam.—Bureau in 
