576 CXXII, EUPHORBIACEE (BROWN). | Luphorbia. 
on old parts, the bark seems to separate into 4—5 ribbon-like strips, 
bearing pairs of spines without spine-shields scattered along them, 
glabrous, brown, becoming dark grey. Leaves rudimentary, minute, 
Spines }-1 lin. long, in pairs 1-3 in. apart, slightly diverging, recurved, 
dark brown or dark grey. flowering-eyes in the axils of the spine- 
pairs. Involucres 3 together, sessile or subsessile, with the middle one 
usually male, 13-1? lin. in diam., obconic-cup-shaped, glabrous, with a 
spreading subtruncately 4—5-lobed glandular rim about $ lin. broad, the 
glands being united at the basal part, surrounding 4—5 erect broad 
transverse fringed lobes. Ovary (young) subsessile, glabrous ; styles 
? lin. long, free, slender, filiform, entire at theapex. Fruit not seen.— 
Pax in Engl. Jahrb. xxxiv. 69; Berger, Sukk. EKuphorb. 60. 
Wile Land. Somaliland: Gara Libin; Arbaroni, Hllenbeck, 2218! 
143. E, Ellenbeckii, Pax in Engl. Jahrb. xxxiii. 285. A leafless 
spiny succulent of unknown habit. Stems or branches of the type 
specimen 2-2} in. long and 5 lin. thick, but probably stouter when 
alive, apparently cylindric, with about 6 spiral series of grey shield- 
shaped spine-shields on very slightly raised tubercles. Leaves not seen, 
doubtless rudimentary. Spines 4 on each spine-shield, arranged nearly 
in a transverse line, with the 2 outer 1-14 lin. long and the 2 inner 
3-9 lin. long, slender, greyish. Flowers and fruit unknown.—Pax In 
Engl. Jahrb. xxxiv. 81. 
Nile Land. Somaliland: Boran, at Turro Gumbi, Ellenbeck, 2099! 
144. E. inzequispina, V.2. Br. Probably dwarf and branching, 
succulent, leafless, very spiny. Branches cylindric, }-} in. thick when 
dried, covered with crowded roundish or obovate horny spine-shields 
1-1} lin. long, each bearing a pair of spines, at first brown, soon 
becoming grey. Spines very unequal, some pairs scarcely more than 
} in. long, others up to 2 in. long, all needle-like, straight, horizontally 
spreading, not very diverging. Leaves very rudimentary, minute. 
Flowers and fruit not seen. 
Nile Land. Somaliland: Webi, Robecchi-Bricchetti, 283! 
Although the specimen is incomplete, the cylindric stems, crowded shields, = 
long unequal spines, readily distinguish this from all other known species excep 
E. Ellenbeckii, from which it differs in the spine-shields not being 3-lobed, and an 
entire absence of a pair of prickles at the base of the spines. 
145. E. golisana, V. £. Br. Perennial, succulent, spiny, leafless, 
about 3 in. high, with stout fibrous roots. Stems erect, branching, 
densely crowded, 3-3 in. thick, several-angled, glabrous; angles ie 
continuous horny dark brown margins, raised into closely set sma 
tubercles, each bearing a pair of needle-like dark brown spies 372 ser 
long. Leaves none or very minute. Peduncles solitary in the iene 
the spines, about 1} lin. long, slender, 3- or fewer-flowered, pare 
Bracts scarcely } lin. long, oblong, toothed at the apex, ghosts 
Involucres shortly pedunculate or subsessile, about 1 lin. in 0” ; 
obconic, glabrous outside, with 5 glands and 5 subquadrate lobes fring 
