Euphorbia.'] cxxii. euphorbiace^ (brown). 599 



sides between them and a proportionately very thick solid central part, 

 sinuate-toothed, with the teeth J-J in. apart. Spines 1-2 lin. long, in. 

 pairs, widely diverging, on rounded horny cushions, which are nor. 

 decurrent. Flowers and fruit unknown. — Boiss. in DC. Prodr. xv. ii. 

 84. E. canariensis, Tremaux, Voy. Soudan Orient. Atlas, tt. 13-14, 

 with description. 



irile :Lancl. Eastern Soudan: mountains of Dar Foq (Mountain of Ka^ane), 

 Tremaux. 



Tlie above is compiled from Tremaux's figure and description. I have not seen 

 a specimen of it. Thos^e referred to this species by Pax, Schweinfurtb, Hiern and 

 Merger < annot belong to it, on account of their different habif, much broader 

 wing-like Jingles, and much smaller solid central part. Possibly the plant collected 

 by Cienkowsky in Fosokl, quoted by Schweinfurth {Beitr. Fl. Aethiop. 36), may be 

 the true H. Candelabrum, but I have not seen it. 



187. E. platyacantha. Pax in Engl. Jahrh. xxxiv. 84. A succu- 

 lent spiny leafless tree 30-40 ft. high, with a rounded crown. The 

 type specimen consists of a terminal branch conNtricted 6 in. below 

 the apex, J-lJ in. square, 4-angled, with a solid central part about 

 J in. square ; angles wing-like, even or scarcely toothed. Leaves 

 rudimentary, scale-like. Spines 3-4 lin. long, in pairs \-^ in. apart, 

 widely diverging, with a pair of recurved prickles i-J lin. long imme- 

 diately above them, on narrow grey horny spine-shields, decurrent 

 to i or J of the way down to the shield below. Flowering-eyes in the 

 axils of the small prickles. Flowers and fruit unknown. — E. Stuhl- 

 manni, Goetze & Engl. Veget. Deutschostafr. t. 15? 



aXozaznb. Dlstr. German East Africa : Uhehe ; by the River Ruaha, Goetze, 

 465! 



188. E. quadrialata, Pax in Engl. Jahrb. xxxiii. 286. A tree 

 up to 60 ft. high, narrowly pyramidal, with a cylindric trunk and 

 distant or irregular groups of stout ascending cylindric branches, naked 

 below, ending in large rounded brush-like dense heads of secondary 

 and tertiary branches, succulent, leafless, spiny, glabrous. Secondary 

 branches spreading, with distant groups of branchlets, §-1 in. in diam., 

 with 3-4 wing-like angles, apparently not glaucous ; angles thin, 

 slightly toothed or nearly even. Leaves minute, rudimentary. Spines 

 1-3 lin. long, slender, in pairs 3-5 lin. apart, diverging, dark grey, on 

 small ovate horny shields 1-1 J lin. long, shortly acute below the spines, 

 grey. Flowers and fruit unknown. — Pax in Engl. Jahrb. xxxiv. 74 

 (excl. Stuhlmann's specimen) ; Berger, Sukk. Euphorb. 74. 



Mozamb. Dlstr. German East Africa : near Magof u, in Western Uscguha, 

 Husse, 319 ! 



The specimen collected in Usaramoby Stuhlmann (8957) quoted by Pax in Engl. 

 Jahrb. xxxiv. 74, as belonging to this species appears to me to be distinct. It is 

 differently and very spaiingly branched ; the branches are flat or 3-Hngled and tho 

 angles much more prominently toothed, with the teeth equally sloping above and 

 below from their apex, whilst in E. quadrialata the upper slope is very short and 

 steep (subtruncate) and the lower long and gradual, the whole tooth scarcely 

 projecting ^ a line when most pro;iiinent. 



