Euphorhia.'] cxxii. EUPiiORBiACE^ (brown). 579 



150. E. quinquecostata^ Volkens in NotizhL Konigl. BoL Ga/rL 

 Ikrlin, ii. 2G6. 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-r)-angled, J-| in. in 

 diam, when dried. Hark green, not glaucous; angles compressed, com- 

 paratively thick, with rounded teeth or crenations 2-4 lin. apart and 

 1-1 J lin. long. Leaves very rudimentary, J lin. long, scale-like, soon 

 deciduous. Spines very small, J-1 lin. h^ng, prickle-like or obsolete, on 

 somewhat horny shields, which are sometimes separate, sometimes 

 decurrent to the shields below, forming continuous subhorny margins 

 and with age appear to corrode into thickened dark gi^y hardened 

 edges to the stem-angles. Involucres solitary (perhaps ultimately 3 

 together) in the axils of the teeth, sessile, 1^-1 1 lin. in diam., cup-shaped, 

 glabrous, with 5 glands and 5 subquadrate denticulate lobes ; glands 

 contiguous, l|-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. Dlstr. Grerman East Africa: on the steep slopes of Lake Jalla in 

 Kilimanjaro region, 2900-3200 ft., Volkens, 407 ! 



151, E.opuntioides, Welw. ex Iliern in Cat, Afr. PL Welu; i. 045. 

 A succulent spiny leafless perennial of dwarf habit, branching at the 

 ba^-e or perhaps the branches arise from a short basal stem. Branches 

 ascending or decumbent, about Gin. long, flat (2-angled) and apparently 

 not very thick, constricted into elliptic or orbicular joints |-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, div^erging and slightly ascend- 

 ing, 1 J-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 IJlin. long. Bracts suborbicular, about 1 J lin. 

 in diam., slightly denticulate at the apex. Involucres sessile, 2-2^ lin. 

 in diam., cup-shaped, glabrous, with 5 glands and 5 short broad transverse 

 fringed lobes; glands f-l^ lin. in their greater diam., transverse, 

 narrow, slightly concave on the inner margin, very broadly rounded on 

 the outer margin, entire. Ovary sessile, glabrous, and together with 

 the 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 J in. in diam., sessile, with its base surrounded by the 

 involucre, glabrous. Seeds (young) subglobose. 



Ibower Guinea. Anjiola: Punj^o Andonj^o; on rocks by the banks of the 

 River Ciianzn, near Candunxl a, Welwitsch, 638! 



152. E. bellica, Iliern 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 



