590 cxxii. KUi'iioKBiAC'E.*: (hkown). [/yHjJiLrbia. 



long and H-lO lin. in diam., deeply 3-lobed as seen from above (globose- 

 trinngular and reddish when alive, Schweinfvrth) , glabrous; cell-walls 

 very thick and woody. Seeds slightly compressed-subglobose, 1 1-!? lin. 

 in diam., with a slight furrow on one side, smooth, light grey or whitish, 

 slightly niarblerl, with a dull surface. — E. ahyssinica, Schweinf. in Bull. 

 Herb. Boiss. vii. App. ii. ?>17, partly; Pax in Engl. Jahrb. xxxiv. 

 77, partly. 



Wrile Iiand. Eritrea: vicinity of Atrnr, iS'rA?rei«/Mr/A, 1351, partly ! 



Tlicro appoars to he some oonftisioii witli rejjard to tlu; succulent tree-like 

 Eui)liorl)i!is fi^rowiiig in Eritrea which Schweinfurtli and others have referred to 

 E. ahyssinica. None of the specimens which I have seen l)elonf? to thiL species. 

 Schv\eiuturtli and also Pax certainly inclnde two or more species under tl)at name. 

 Tlie former states that it varies in ajipearance, growing 10 to 30 ft. in height, 

 sometin.es witli a short trunk and a large crown of longer hranclies, sometimes with 

 the trunk as tall as the obconic tiat-topi)ed crown. Seedling plants are 3- si on 

 hecominf;: 4-angled. Young unhranched trunks are sometimes i.p toO-angl-ul. 1 he 

 main l)ranche-! are 4-0 in. in diam. and 6-9-aiigled and the seconihiry hranclies ahout 

 S-angled. Leaves cf young shoots and seedlii gs are up to ^ in. long, oblanceolate, 

 slightly cMspidafe at the apex, cnneate at the hase, passing into a petiole. The si)ines 

 arc rarely more than 4 lin. long, grey with black tips, in pairs about 7 lin. a])art. 1 

 do not know if this de«cri])tion refers to the Acrur })lant or not, as 1 have not, seen 

 leaves of the ])lant I describe, b»it only a seedling j)lant, with stem-sections and locse 

 Howersiind fruit. I therefore restrict n»> dest-iiption o\' E. acniren-six to the Acrur 

 ])l:int with 0-7- or more angleil stems, to which I sup]>ose the jjedunculate cymes 

 distributed with the .stem-seciions may belong, Scliireivfio-lh c^ Itira, J3o], 

 collected in 1S92 (not ISIH). Unfortunsitely fragnienfs with sessile fruiting cxnies 

 have also been distributed under the .'^ame number and date, but the strnctnie of the 

 spine-shields and tlowering-eyes on the scraps of stem-;ingle with these fragments 

 ami that of the cymes and involucres is identical with those of E. dischi-tn, X. \\. IJr., 

 to which s])ecies I believe they belong. Schweinfurth 1351 of the 1891 colh ction is 

 ))rubal)ly a variety of E. Eryflirata', N. E. Hr. All these have been distr.btited a>* 

 E. ahyssinica, Haeuschel, from which they differ totally in having the branches 

 constricted into ]>arallel-sided or slightly conical (not elliptic or orbicular) segments. 



182. E. Erythrsese, .V. E. Br. Arborescent, succulent, leafless, 

 spiny. Branches ascending like the arms of a candelabrum, slightly 

 constricted into subparallel-sided joints of unequal length, 2-o in. in 

 diam. and 5-7-angled in the specimens seen (but according to lierger 

 up to 4J in. in diam., and at first P)-angled, becoming 4-aDgled), with 

 the solid central part 1-1 1 in. thick and as much or more in diam. as 

 the angles are broad, dark sap-green ; angles wing-like, ^-1} in. broad 

 and 1^-2 lin. thick at the edges, straight or wavy, with even or scarcely 

 toothed margins and separated by triangular channels |-1 in. (or 

 perhaps more) deep, growing out into flat faces with age. Leaves 

 rudimentary, scale-like. Spines 1|-4J lin. long, .stout, in pairs \-\ in. 

 apart, diverging, on suborbicular shields 2-o lin. long and broad, closely 

 placed, but not connected by a horny border, brown, becoming grey. 

 Flowering-eyes touching or merged into the spine-shields. Flowers 

 and fruit not seen nor described. — E. Candelabrum, vai-. Erythra'a ^ 

 Berger, Sukk. Euphorb. 73. 



irile Xiand. Eritrea; Ilarassa Valley, 6V7/H-e/»//rr///, 220 I 227! and cnlti\ I'trd 

 sp(>cini<'n ! 



I 



