Euphorbia. | CXXII. EUPHORBIACEX (BROWN). 579 
150. E. quinquecostata, Volkens in Notizbl. Kénigl. Bot. Gart. 
Herlin, ii. 266. A small leafless succulent minutely spiny tree 10-15 
ft. (Volkens, but on the label 18-21 ft.) high, with a rounded crown of 
incurved intermingled branches. Branchlets 4—5-angled, 3-2 in. in 
diam. when dried, dark green, not glaucous; angles compressed, com- 
paratively thick, with rounded teeth or crenations 2—4 lin. apart and 
1-1} lin. long. Leaves very rudimentary, 4 lin. long, scale-like, soon 
deciduous. Spines very small, 1-1 lin. long, prickle-like or obsolete, on 
somewhat horny shields, which are sometimes separate, sometimes 
decurrent te the shields below, forming continuous subhorny margins 
and with age appear to corrode into thickened dark grey hardened 
edges to the stem-angles. Involucres solitary (perhaps ultimately 3 
together) in the axils of the teeth, sessile, 14-13 lin. in diam., cup-shaped, 
glabrous, with 5 glands and 5 subquadrate denticulate lobes; glands 
contigueus, 13-2 lin. in their greater diam., transversely elliptic- 
oblong, entire, very convex, with the ends somewhat deflexed, yellow. 
Ovary and capsule not seen, the involucres present on the type being 
all male and probably the central of gradually developed sessile 3-invo- 
lucred cymes, as is not infrequently the case in other species.— Pax in 
Engl. Jahrb. xxxiv. 71; Berger, Sukk. Euphorb. 63. 
_Mozamb. Distr. German East Africa: on the steep slopes of Lake Jalla in 
Kilimanjaro region, 2900-3260 ft., Volkens, 407! 
lol. E.opuntioides, Welw. ex Hiern in Cat. Afr. Pl. Welw. i. 945. 
A succulent spiny leafless perennial of dwarf habit, branching at the 
base or perhaps the branches arise from a short basal stem. Branches 
ascending or decumbent, about 6 in. long, flat (2-angled) and apparently 
not very thick, constricted into elliptic or orbicular jcints 3-1 in. in 
diam., somewhat resembling those of an Opuntia in miniature, glaucous- 
green ; margins shallowly sinuate-toothed or subcrenate with continuous 
horny brown edges. Spines in pairs, diverging and slightly ascend- 
ing, 1}-2 lin. long, dark brown or grey. Flowering-eyes 1}—2 lin. above 
the spine-pairs. Cymes solitary, pedunculate, with 1-3 involucres ; 
peduncle stout, about 1} lin. long. Bracts suborbicular, about 14 lin. 
in diam., slightly denticulate at the apex. Involucres sessile, 2-24 lin. 
in diam., cup-shaped, glabrous, with 5 glands and 3 short broad transverse 
fringed lobes; glands 3-1} lin. in their greater diam., transverse, 
natrow, slightly concave on the inner margin, very broadly rounded on 
the outer margin, entire. Ovary sessile, glabrous, and together with 
age united part of the styles included in the involucre; styles about 
1 lin. long, united for half their length, with spreading bifid arms. 
Capsule about 1 in. in diam., sessile, with its base surrounded by the 
‘volucre, glabrous, Seeds (young) subglobose. 
Ri Lower Guinea, Angola: Pungo Andongo; on rocks by the banks of the 
Wer Cuanza, near Candumba, Welwitsch, 638! 
152. EB. bellica, /Tiern in Cat. Afr. Pl. Welw.i, 945. A stout leafless 
Spiny succulent bush 3-5 ft. high, glaucous-green, very glaucous when 
young. Trunk branched from the base; branches crowded, ascending 
