EuphorUa.] euphorbiace.e (Brown). 365 



3-4:-angled, glabrous, light green on the young parts, beconiing 

 light greyish-green ; angles acute, with flat faces between them on 

 the 3-angled branches, and compressed, with deeply channelled faces 

 between them on young 4-angle(l branches, ultimately growing into 

 flat faces, more or less sinuate-toothed, sometimes wavv, with cun- 

 tinuous or interrupted horny grey margins ; spines in pairs \-\ in. 

 apart, diverging, 2-4 lin. long, at first brown, becoming grey, with 

 dark brown or blackish tips; leaves very rudimentary, scale-like, 

 \-\ lin. long and \ lin. .broad, soon deciduous; flowering-eyes seated 

 nearly midway betw^een the spine-pairs. 



Country unknown, but possibly from South Africa. Described from a living 

 branch from the typcj kindly sent to Kew by Mr. Alwin Berger. 



170. E. CQsrulescens (Haw. in Phil. Mag. 1827, 276) ; a succulent 

 spiny leafless bush, 2-3 (or perhaps more) ft. high, branching 

 throiip;hout ; branches in clusters or somewhat whorled, spreading, 

 1 j— 2 in. thick, slightly constricted into rounded oblong or elongated 

 segments 1^-3 in. long, 4-5-angled, with slightly concave sides, 

 dark green, more or less glaucous, at least on the younger parts; 

 angles sinuate-toothed, with continuous or occasionally interrupted 

 horny and at first pale brown finally grey margins ; spines \—h in. 

 long, in pairs, rather stout, diverging, dark brown ; flowers not seen. 

 E. virosa, Boiss, in DO, Prodr, xv. ii. 83 {excl, reference to Paterson), 

 and E, virosa and var. ccerulesce^is, Berger, Snkh, Euphorh, 80-82, 

 fiO^ 20, not of WUhl 



r 



South Africa : without locality, cultivated specimen, Bowie I 

 Central Region ; Somerset Div., without locality, with Viscum Crassulx, 

 Eckl. & Zeyh., growing upon it, photogrciph only, Bregel 



I have not seen flowers of this species nor any dried specimen that I can without 

 doubt refer to it, except a portion of the type plant (still in cultivation at Kew) 

 dried by myself. But it is possible that specimens collected by the late Dr. Bolus 

 in Uitenhage Div. and stated to be common there, which were distributed under 

 no. 1872, may belong to this species. It has the same stout spines, but appears 

 less branched, with longer intervals between the constrictions of the stems, which 

 are 6-angIed. It is a plant that requires investigation from living material. 

 £* ccerulescens was introduced into Kew Gardens by Bowie in 1823, and probably 

 most of the specimens of it cultivated elsewhere were derived from cuttings of 

 the original plants. 



171. E. Ledienii (Berger, Sukk. Eupliorb. 80); a succulent spiny 

 leafless bush, 4-6 ft. high, erect ; branches up to i\ (when dried 

 2— li) in. in diam., 4-7-angled, slightly constricted at varying 

 intervals, glabrous, green ; angles compressed, slightly or conspicu- 

 ously sinuate-toothed, separated by concave faces or grooves |-| in. 

 broad; spine-shields separate or connected into a horny brown 

 border, even on the same branch, 1-U lin. broad ; spines in pairs 

 3-9 liu. apart, diverging, 1-3 lin. long or sometimes rudimentary or 

 absent, without prickles at their base, dark brown ; leaves rudi- 

 mentary, scaledike, i lin. long, broadly deltoid-ovate, soon deciduous ; 

 flowering-eyes 1-2"^ lin. above the spinepairs and touching or 



