Euphorbia. | CXXII. EUPHORBIACEH (BROWN). 587 
wing-like angles 1-21 in. broad and 1 lin. or more thick and a small 
solid central part scarcely } in. in diam. when dried, apparently very 
glaucous, with the angles mure or less sinuate and somewhat wavy, and 
With a continuous horny light brown margin, Spines 2-3 lin. long, in 
pairs, diverging, with or without a very minute pair of prickles at their 
base, light brown with darker tips. Leaves rudimentary, scale-like, about 
3 lin. long and 1 lin. broad, transverse, somewhat semicircular, wavy or 
crisped, Cymes subsessile or very shortly pedunculate, several together, | 
forming dense clusters, each composed of 9-18 involucres, crowded along 
the angles of the terminal branches. Involucres about 34 lin. in diam., 
cup-shaped, glabrous, with 5 glands and 5 transversely oblong minutely 
toothed lobes; glands contiguous, 14 lin. in their greater diam., trans- 
versely oblong or elliptic-oblong, somewhat 2-lipped when dried, entire, 
yellow. Ovary subsessile, included in the involucre, with a small 
cupular or rim-like calyx at its base, glabrous; styles 1} lin. long, 
united at the basal half, then spreading, with minutely 2-lobed or rather 
channelled stigmas. Capsule and seeds not seen. 
Nile Land. British East Africa: Kibwezi, Scheffler, 223! 
166. E. ussanguensis, V. #. Br. A succulent spiny leafless tree 
25-30 ft. high, with a small crown, Branches strongly constricted at 
varying intervals, forming ovoid-conical segments 14-44 in. long, 3-4 in. 
or more in diam., broadest at the base, 5-angled, with a small central 
solid part, glabrous, green ; angles broadly wing-like, much compressed, 
about } in. thick, with continuous horny brown margins having 
peculiar fold-like sinuations midway between the pairs of spines. Leaves 
not seen, probably scale-like. Spines 1-4 lin. long, in peirs 4-2 
in. apart, stout, not very divergent, brown. Flowering-eyes in the 
Sinuations, 4-1 in. above the spine-pairs. Cymes sessile, very crowded 
along the angles at the ends of the branches, each with 3 sessile invo- 
Ueres, glabrous. Bracts 1 3-2 lin. in diam., suborbicular, concave, thin. 
hvolucres } in. in diam., cup-shaped, glabrous, with 5 glands and 5 
cuneately subquadrate truncate denticulate lobes; glands contiguous, 
1} lin. in their greater diam., transversely elliptic or rather narrowly 
oblong, 2-lipped, entire, decurved at each end. Ovary sessile and 
together with the united part of the styles included in the involucre, 
with a very small cupular shortly 3-lobed calyx at its base; styles about 
1} lin, long or less, united for half their length, spreading above, with 
thickened entire minutely tubercnlate stigmas.— 4. Nyike, Pax in 
Engl. Jahrb. xxx. 342, not of elsewhere. ££. angularis, Pax in Engl. 
ahrb, xxxiv. 76 (excluding all synonyms, except L. Stuh/manni, 
Goetze & Engl.), not of Klotzsch. L. Stuhlmanni, Goetze & Engl. Veget. 
Deutschostafr, tt. 14 and 16, 
Mozamb. Distr. German Eust Africa. Usungv, north of the Kinga (Living- 
Stone) Range, Goetze, 1008! 
This is closely allied to E. controversa, N. E. Br., but differs in the fold-like 
uations of the angles and in having very short tooth-like (uot long = 
calyx-lobes under the ovary. 
Sin 
