456 CXXII, EUPHORBIACE£ (BROWN). | Monadenium. 
tubercles, often densely so at the middle part and thinly elsewhere 
on the back, without evident keels, apparently whitish or greenish- 
yellow, with dark green veins. Involucre 2-2} lin. long, open in 
front to below the middle, subcylindric-oblong, slightly contracted 
under the truncate slightly recurved rim, glabrous. Ovary recurved, 
3-angled, everywhere covered with short points or filiform processes; 
styles 1 lin. long, united to the middle, bifid at the tips, minutely 
papillate. 
Mozamb. Distr. German East Africa: Ngaruka, Merker, 577! Usambara; 
Mkumbara, Brava, 2574! 
10. M. Geetzei, Par in Engl. Jahrb. xxx. 342. Stems annual 
from a tuverous rootstock, 8-18 in, high, }-} in. thick at the base, 
apparently somewhat fleshy, sometimes with 1-2 erect parallel 
branches, terete, glabrous. Leaves apparently somewhat fleshy, 
3-63 in. long and }-3 in. broad, linear-lanceolate or narrowly 
lanceolate, acute, gradually tapering from above the middle to the 
petiole-like base, sharply toothed all round the margin or only on the 
basal part, glabrous on both sides. Cymes apparently 2 or more at 
the tips of the stems, 14 in. or more in diam., about 3 times forked, 
on peduncles 24-33 in. long, glabrous. Bract-cup 34-4 lin. long; 
5-9 lin. broad, broadly or subtruncately rounded at the top margin, 
crisped from scollop-like portions being incurved, notched to } of the 
way down, with 2 crenate keels down the back, more or less reticulately 
veined, glabrous, green, suffused with purple or violet. Involucre 
2 lin. long, much shorter than the bract-cup, open to below the middle 
in front, truncate, overtopping the subquadrate fringe-toothed lobes, 
dull greenish-violet, with a yellow appendage and a red margin (Goetze). 
Capsule about 24 lin. long, sharply 3-angled, with two very narrow 
membranous wings along each angle, exserted on a recurved pedicel ; 
perianth obsolete ; styles 1 lin. long, united to above the middle, with 
shortly bifid thickened revolute stigmas, Seeds 4-angled, truncate at 
each end, carunculate, probably smooth, but immature in the type 
specimen. 
Mozamb. Distr. German East Africa: Ussangu Muigi Mountain, north 
Livingstone (Kinga) Range, 5000 ft., Goetze, 1017! 
11. M. lave, Stapf in Hook. Ic. Pl. t. 2666, fig. 6. Stem probably 
more than 1} ft. high, herbaceous or subfleshy, perhaps annual from 
a tuberous rootstock, glabrous. Leaves alternate, 2}-64 in. long, 
j-2 in. broad, oblanceolate or elliptic-oblanceolate, acute, cuneately 
tapering from the middle into the 1-4 in.-long petiole, thinly sprinkled 
with short hairs above, glabrous beneath; midrib prominently wing 
on the underside. Cymes axillary, 14-24 in. in diam., about 3 times 
forked, glabrous in all parts; peduncle 2-4 in. long; cyme-branches 
4-% in. long. Bract-cup 3-7 lin. long, 4-8 lin. in diam., thinly 
herbaceous, reticulately veined, notched to } or nearly half-way down, 
Sometimes with a thickened margin (gland ?) at the base of the notch. 
Involuere 2 lin. long, cup-like, open in front to below the middle, with 
