582 CXXII. EUPHORBIACEA (BROWN). | Euphorbia. 
Var. subinarticulata, N. KE. Br. Stems and branches more slender, 4—$ in. in 
diam. when dried, 4-5-angled, less conspicuously eonstrieted. Spines usually smaller 
and 1~4 lin, (but sometimes up to 7 lin.) long. Otherwise as in the type, but eapsule 
and seeds not seen.—E. polyacantha, var. subinartieulata, Schweinf. in Bull. Herb. 
Boiss. vii. App. ii. 323. 
Nile Land. Eritrea: between Suakim and Berber im Wady Teehke, 
Schweinfurth, 208! 204! 339, and at Singat, Schweinfurth, 210! Abyssinia : 
Tigre; Goelleb, 4000 ft., Schimper, 1264! 
156. E. buruana, Pax in Engl. Jahrb. xxxiv. 85. A succulent 
spiny leafless bush about 14~2 ft. high. Branches of the type 10-13 in. 
long, 1-1$ in. in diam. at the thickest part, with the lower part gradually 
thickening upwards to or above the middle, and the upper part with 
2-3 narrow neck-like constrictions between 2-3 dilated irregularly 
orbicular segments not much longer than broad, 3-angled, glabrous; 
angles wing-like, sometimes wavy, sinuate-toothed. Leaves rudi- 
mentary, minute, scale-like, Spines unequal, 2-8 lin. long, 1n pairs 
3-? in. apart, widely diverging, brownish-grey, on horny shields ex- 
tending above the spines to the flowering-eye and also shortly below 
them on the teeth of the angles, but not forming a horny border to the 
base of the teeth. Flowering-eyes 14-3 lin. distant frum the base of 
the spines. Flowers unknown. é 
Nile Land. British East Africa: steppe near Maketau, west of the Bura 
Mountains, Uhlig, 47! between Taveta and the Bura Mountains, Engler, 1930a! 
157. E. breviarticulata, Pax in Engl. Jahrb. xxxiv. 84. A 
stout succulent leafless bush 2-3 ft. high, much branehed from — 
base, armed with very long spines. Branches erect or ascending, very 
deeply constricted into subsagittate-ovate or -reniform meer 
2-3 in. long and 24-34 in. in diam., and probably larger, dangled, We 
a solid central part 3-1 in. thick, glabrous; angles much compresse!, 
wing-like, 1-1} in. broad and 4-1 in. thick, with continuous pith 
greyish-white wavy margins. Leaves rudimentary, scale-like, pe 
3 lin. long and } lin. broad, ovate. Spines very stout, 4-23 eed 
1-1} lin. thick at the base, in pairs 3-14 in. apart, widely divergins 
pale brown or greyish. Flowering-eyes seated midway between - 
spine-pairs. Cymes 3 together, with peduncles 1-2 lit. 10 ae 
times bearing only a male sessile involucre, sometimes with 2 og 
involucres on cyme-branches 2 lin. long, glabrous. Braet : a ith 
lin. long, suborbicular, concave, thin. Involueres $ in. in diam. est 
5 glands and 5 subquadrate denticulate lobes; glands seem ante 
1}-1} lin. in their greater diain., transverse, elliptic-oblong, 4 wr ip 
not rugulose on their upper surface. Ovary subsessile, ener 
the involucre, somewhat acutely 3-angled, glabrous, without @ ” id 
calyx; styles 1} lin. long, united for half their length, pe 0 
spreading, 2-lobed at the apex. Capsule and seeds not seen. ne 
Mozamb. Distr. German East Africa: steppe to the pansies tne 7 
Mountains, Uhlig, 815! ines, 
This species only differs from E. grandicornis, Goebel, in its rather tthe se ace. 
pedunculate cymes, and the involucre glands not rugulose on their uppe : 
