586 CXXII. EUPHORBIACEE (BROWN). | Luphorbia. 
Pax in Engl. Jahrb, xxxiv. 74. #. Busse’, Pax in Engl. Jahrb. xxxiil. 
286 and xxxiv. 73; Berger, Sukk. Euphorb. 53. 
Mozamb. Distr. Zanzibar, Werth! Sacleux, 856! German East Africa: 
Usambara; near Magila, Volkens, 51! plains south of Kilimanjaro, Sacleuz, 1310! 
also on the steppe region and mountains of Usambara and Pare, ex Volkens, ant 
without precise locality, Busse, 317! ; 
The type specimens of EZ. Nyike, H. Neovolkensii, and E. Bussei are specifically 
identical; each consists of a very short terminal piece of a branch, 3-winged in 
E. Bussei, flat and 2-winged at the base and 4-winged at the apex in £. Nyike, 
4-winged throughout in BE. Neovolkensii, and the wings very thin in all. The plant 
quoted and figured by Werth (Veget. Ins. Sansib. 81, 32, 50, &c., fig. 3) as 
E. Nyike is probably E. angularis, Klotzsch. That quoted as EZ. Nyike by Pax in 
Ann. Istit. Bot. Roma, vi. 186, from Somaliland, is probably a distinct species ; I have 
not seen it. 
163. E. mbaluensis, Pax in Engl. Jahrb. xxxiv. 85. A. leafless 
spiny succulent shrub or tree. Branches constricted into segments, 
3-angled, with a small solid central part; angles wing-like, 1-1} in. 
broad, rather thick, crisped-toothed, with continuous horny grey mar- 
gins. Spines 2-3 lin. long, } lin. thick at the base, in pairs, with a 
pair of minute prickles at their base, having the withered remains of the 
minute crest-like leaf between them. Involucres densely crowded along 
the angles at the apex of the branches, shortly pedunculate, 24 lin, in 
diam., with transversely ovate (? oblong or elliptic) glands and broad 
scale-like bracts. 
Mozamb. Distr. German East Africa: Pangani (Ungurn) ; lower slopes of 
Mbalu Mountain, Engler, 1472c. 
Of this I have not seen a specimen. 
164, E. kamerunica, Pax in Engl. Jahrb. xxxiv. 75. A tree up 
to 20 ft. high. Branches succulent, spiny, probably leafless, 3 he 
more in diam., 3—5- (usually 4-) angled, with a solid central part 3-4 re 
thick, glabrous, bright green; angles wing-like, sinuate-toothe : 
Leaves rudimentary, scale-like. Spines 1-2 lin. long, stout, 10 pairs 
3-1 in. apart, diverging, usually with a pair of minute prickles neat 
their base, dark brown, on horny ovate dark brown shields about t mi 
long, obtusely pointed below thespines. Flowering-eyes 2-8 lin. above 
the base of the spines, shortly separated from the shields. Toveliey 
0-7 together in a dense cluster, on peduncles (branches of eng 
cymes) 1-1} lin. long, bowl-shaped, about 4 in. in diam, ee tear OR 
5 glands and 5 broadly cuneate long-fringed lobes; glands sue" 
tiguous, 13 lin. in their greater diam., reniform or half-cireular, wage 
Ovary included, shortly pedicellate, glabrous, with a calyx at oo fa 
cut into about 7-9 linear or filiform segments 3-1} lin. long, pegs iee 
long as or longer than the ovary ; styles 1} lin. long, free to partes 
widely recurved-spreading, rather slender, subcapitate at the apex- 
Upper Guinea. Cameroons: Barombi, Preuss, 511! 
Described from the type, in the Berlin Herbarium. 
ae ° P : afless 
165, E. kibwezensis, V. 1. Br. A tree 20-30 ft. high, pee 
Spiny, succulent. Flowering branches 23-43 in. in diam., W! 
