Euphorbia, | ‘XXII. EUPHORBIACEE (BROWN). 575 
thickened entire stigmas. Capsule and seeds not seen.—Pax in Engl. 
Jahrb. xxxiv. 84; Berger, Sukk. Euphorb. 60. 
Mozamb. Distr. German East Africa: Itarige, Fischer, 519! 
Described from the type in Berlin Herbarium, 
140. E. isacantha, Pax in Engl. Jahrb. xxxiv. 82. A succulent 
leafless spiny bush or shrublet, probably dwarf. Branches of the dried 
specimen 5-7 in. long, 2—4 lin. thick, somewhat 4-angled, subtuberculate, 
glabrous. Leaves rudimentary, scale-like, about 2 lin. long, ovate- 
oblong, acute. Spines in groups of 4 on each spine-shield, 2 directed 
upwards and 2 downwards, all equal, 2-3 lin. long, slender, widely 
diverging, brown, on narrow horny spine-shields decurrent to an acute 
point 1-2 lin. below the spines, but not forming a continuous border. 
Flowering-eyes touching the apex of the spine-shields. No attached 
flowers, but a cyme mingled with the spines and probably belonging to 
the plant, is sessile, with 3 involucres on rather slender peduncles } in. 
long. Involucres 1} lin. in diam., obconic, minutely puberulous ; glands 
too decayed for description, but apparently very closely contiguous or 
united into a continuous rim. 
Mozamb. Distr. (German East Africa: Ungoni; Mgasa Valley, Busse, 949! 
Described from the type. The arrangement of the subequal spines is unlike that 
of any other species I have seen. 
_l41. E. Nyassze, Pux in Engl. Jahrb. xxxiv. 875. A succulent 
spiny leafless bush about 18 in. or less high. Stems or branches }~} in. 
in diam. when dried and 4-1 in. when alive, apparently subcylindric and 
spirally tuberculate or perhaps subangular. Tubercles not very pro- 
minent, each with a horny grey shield, elongated triangular in outline, 
~+ in, long, bearing 2 pairs of diverging grey spines, with the lower 
pair 1-2} lin. long and the upper 3—#lin. long. Leaves very rudimentary, 
scale-like. Flowering-eyes touching the apex of the shields. Cymes 
solitary, sessile, with 2 lateral involucres on branches or peduncles # lin. 
long and a central sessile deciduous one, glabrous. Bracts scale-like, 
not half as long as the involucre, ovate, obtuse, membranous. Invo- 
lucres 1? lin. in diam., funnel-shaped, glabrous, with 5 glands and 5 
transversely oblong minutely toothed lobes ; glands contiguous, {~-1 lin. 
™m their greater diam. and twice as broad as long, transversely oblong 
or subrectargular, entire, dark purple. Ovary 3-angled, glabrous, 
Ineluded, becoming partly or wholly exserted in fruit ; styles 1} lin. 
long, united at the basal third, then recurved, slender, minutely bifid 
at the apex.— Z. tetracantha, Pax in Engl. Jahrb. xxx. 341, and xxxiv. 
81, 375, not of Rendle. 
SE Distr. German East Africa: Unyika, near Manayeme’s Village, 
4900 tt., Goetze, 1443! 
_ 142. E. Erlangeri, Pax in Engl. Jahrb. xxxiii. 286. A leafless 
“piny branching succulent shrub 6-10 ft. high. Branches alternate cr 
°pposite, very slender, not more than } in. thick in the specimen seen, 
cylindric (or slightly angular’), with 4-5 slight furrows, along which, 
