Euphorbia.^ cxxii. euphorbiace.e (brown). 485 



apex 5 involucre-glands 

 1-1|- lin. in diam. . . 101. E. Merkeri. 

 Bracts under the involucre 

 broadest at or below the 

 middle; involucre-glands 

 f-|- lin. in diam. . . 102. E. consohrina. 

 Dwarf {or in 112, E. Poissoni, up to 5 ft. high) 

 succulent plants, quite spineless, with turnip- 

 shaped or cylindric and tessellated or tuber- 

 culate stems or branches. 



Stem 1 in. or more high, thick, turnip-shaped, 

 densely dichotoraously branched at the top, 



pilose 109. E. Pirottre. 



Stem 1-3 in. high, i-|- in. thick, cylindric, more 

 or less tuberculate, with a tuft of leaves and 

 flowers jit the apex, glabrous. (See also 

 110, E. napoides, which has pubescent in- 

 volucre-glands) 111. E. rubella. 



Plants branched, up to 5 ft. high ; flowering 

 branches 1 in. or more thick, tessellately 

 tuberculate ; leaves 2i-5§ in. long, notched 

 or 2-lobed at the apex .... 112. E. Poissoni. 



Sa Succulent plants, always armed with prickles, 

 spines, or spine-shields on which the spines 

 have become aborted ; involucre-glands 4t-5, 

 entire and without appendages, rarely united 

 into a continuous rim, glabrous. 

 Srancbes 4-(5?) ang-led, spineless, with 

 separate horny shields along: theang-les. 

 (Branches or parts of them in 168, E. contro- 

 versa, and 1 50, E. quinquecostata, are also some- 

 times destitute of spines). 

 Branches ^-^ in. (or perhaps more) squai-e, with 



linear shields ...... 135. E. heteroehroma, vtr. 



Branches 1-1^ in. square; shields broadly obovate 



or broader than long 169. E. JIurieli. 



Branches cylindric, 1-2 In. thick, tessel- 

 lately tuberculate, armed with solitary 

 simple spines without a pair of prickles 

 at their base ; leaves 2-12 In. long-, 

 deciduous. 

 Leaves broadly linear or strap-shaped ; peduncles 



4r-5 lin. long 113. i;. Sapini. 



Leaves narrowly lanceolate or tapering from above 

 the middle to the base, acute to truncate or 

 2-lobed at the apex. 

 Spines extending into a suborbicular horny 



shield round their base, pale grey , . 114 E. unispina. 



Spines ending abruptly at their dilated base, 

 not forming a suborbicular shield, brown or 



greyish-brown 115. E. renenifu 



Branches angular or cylindric, ^-^ In. 

 thick, leafless ; main spines simple or 

 forked, solitary or with a pair of small 



