Dorstenia.] CXXIIIc. MORACEH (Rendle). 67 
82. D. sessilis, R. E. Fries in Arkiv. Bot. xiii. no. i. 16, t. 2, figs. 
6-8. Tuber placentiform, 1-1} in. in diam., 7-9 lin. high, pale 
yellowish, convex surface smooth, upper surface and margin warty 
and emitting fibrous roots. Stem solitary, erect from the centre 
of the depression, rather succulent, terete, 8-12 in. high, bearing 
a dense short strigose pubescence, becoming glabrous near the base; 
leafy above, with internodes up to 1} in. long, and bearing in the 
lower half a linear-oblong acute ciliate scale at each node. Leaves, 
from the figure evidently very young, sessile, erect, linear, narrowing 
gradually from the base to the somewhat obtuse apex, margin 
revolute and closely denticulate, up to 1} in. long and 3-1} lin. 
broad, covered with short grey stiffish hairs. Stipules linear-oblong, 
acute, ciliate, 1-14 lin. long, persistent. Receptacle sessile in each 
leaf-axil, rounded-elliptic, fixed at or a little below the middle, about 
3 lin. long and 2 lin. wide, yellowish-green, disc convex, dark purple, 
with an entire or obscurely sinuate margin; bract-arms 2 (very 
rarely 3) one at each end, springing from below the margin, linear, 
t- lin. wide, becoming densely and shortly strigose-hirsute above 
the base, apical arm 7-9 lin. long, basal 24-4 lin. Male flowers 
2-(or 3-)androus, with 2 (or 3) rounded fimbriate perianth-lobes ; 
female numerous ; style minutely 2-fid at the apex—R. E. Fries 
in Wiss. Ergebn. Schwed. Rhodes.-Kongo-Exped. 1911-12, i. 13. 
Mozamb. Distr. Rhodesia: between Lakes Bangweolo and Tanganyika, 
Fries, 1133. 
83. D. caudata, Engl. in Engl. Jahrb. xxviii. 377. Stem erect 
from a depressed: tuber about 2 in. in diam. and 1 in. high, thick, 
fleshy, about 16 in. long and 8 lin. thick, rather densely leaved. 
Leaves thin, lanceolate, acute, base cuneate narrowing to the short 
petiole, margin serrulate, 24-5 in. long, 1-1} in. wide, very shortly 
and sparsely hairy beneath. Receptacle subsessile (stalk 1 lin. long), 
much curved, boat-shaped, 4-5 lin. long, and 2 lin. broad, with a 
slightly lobed margin } lin. broad and a narrow tail-like bract-arm 
a the upper end about 2 in. long. Flowers very small; style 
-fid. 
Mozamb. Distr, German East Africa : Uhehe ; on the Ruaha River, 2000 ft., 
Goetze, 459. 
84. D. ruahensis, Engl. in Engl. Jahrb. xxviii. 377. Stem erect 
om a depressed-globose tuber about ? in. in diam., fleshy, 12 in. 
long, 24 lin. thick, very shortly hairy, laxly leaved above. Leaves 
thin, oblong, broadly and minutely dentate, 4-5 in. long, 1}-2 in. 
wide, sparsely pilose on both faces ; lateral nerves about 8 on each 
Side, spreading ; petiole and midrib very shortly hairy. Peduncle 
about 3 in. long; receptacle flat, oblong, obtuse, 6-9 lin. long, 4-5 
lin. broad, with a narrow obtusely crenate violet margin about 
