ADDENDA. 10385 
Saclewx up to 12) in. high, erect, unbranched, apparently fleshy, 1-14 
lin. thick when dried, glabrous. Leaves alternate, very spreading or 
perhaps slightly deflexed, fleshy, shortly petiolate, 1-13 in. long, 14-44 
lin. broad, linear-lanceolate to lanceolate, about equally acute at both 
ends, crisped at the margins, glabrous on both sides. Peduncles 
solitary in the axils of the upper leaves and terminal, 14-2 lin. long, 
bearing 1-3 involucres. Bracts free to: the base, 13-2} lin. long, 
1-1} lin. broad, oblong, rounded and apiculate at the apex, slightly 
keeled down the back, glabrous, probably green. Involucre about 1} 
lin. long, open to half-way down in front, truncate at the top, with a 
slightly thickened entire margin, glabrous. Ovary trigonous, with a 
slight simple keel down each angle, exserted on a recurved pedicel, 
glabrous ; styles free to the base, 4 lin. long, minutely 2-lobed at the 
apex. Capsule about 2 lin. in diam. and 2} lin. long, glabrous. Seeds 
1} lin. long, oblong, truncate at each end, minutely tuberculate all over 
and with a furrow down one side. 
Mozamb. Distr. German East Africa: under trees in the forest of 
Amboni, Sacleux, 2320! 
Similar to WZ. crenatum, N. E. Br., in appearance, but the leaves are not wing- 
keeled beneath, the peduncles are much shorter and the involucre is entire at the rim. 
216. Monadenium Chevalieri, V. #. Br. Stem annual from a 
perennial rootstock, about 34 in. high and 3 lin. thick in the only 
Specimen seen, herbaceous, glabrous. Leaves alternate, $ to probably 
about 2 in. long, but broken in the type, 1-2 lin. broad, linear, acute, 
longitudinally folded, glabrous. Peduncles solitary, axillary, 6-7 lin. 
long, rather slender, with a pair of bracts and 1 involucre at the apex, 
but possibly ultimately developing more, glabrous. Bracts free to their 
base, 1-2 lin. long, 1} lin. broad, elliptic, acute, with a slightly prominent 
keel, glabrous. Involucre 1 lin. long, 1} lin. in diam., slightly con- 
stricted under the entire rim and open to half-way down in front. 
Pedicel abruptly recurved from the opening of the involucre, bearing 
the remains of a distinct toothed calyx at its apex. Capsule fallen, not 
seen. 
North Central. 
8291! 
Allied to M. crispum, N. E. Br., but the leaves are narrower, not crisped at the 
margins and the peduncles are much longer. 
Eastern Shari Region: Gouz Amer, near Ndeli, Chevalier, 
5. Synadenium carinatum, Joiss. Add: 
Mozamb. Distr. Zanzibar, Sacleur, 369! 
9. Euphorbia zambesiana, Benth. Add: 
North Central. Dar Banda: Ndelli, Chevalier, 6782! 
9a. Euphorbia zeylana, V. Z. Br. Perennial. Stems appa- 
rently prostrate, 6-12 in. long and 1-1} lin. thick in the specimens 
seen, naked, with thickened nodes and more or less woody on the lower 
4-3 of their length, branching and very densely leafy at the terminal 
