Huphorbia. | CXXIIl, EUPHORBIACE (BROWN). 485 
apex; involucre-glands 
1-1} lin. in diam. . . 101. EB. Merkeri. 
Bracts under the involucre 
broadest at or below the 
middle; involucre-glands 
3-2 lin.in diam. . 102. #. consobrina. 
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 eo branched at the top, 
pilose See Eo eit se ODD, aeaewee: 
Stem 1-3 in. high, } 3-3 in. thick, cylindric, more 
or less tibetoulate, with a tuft of leaves and 
flowers at the apex, glabrous. (See also 
110, EZ. napoides, which has pubescent in- 
volucre-glands) . - 111. Z. rubella. 
Plants branched, up to 5 ft. eke flowering 
branches 1 in. or more thick, tessellately 
tuberculate ; leaves 23-53 in. long, notched 
or 2-lobed at the apex ; < . . 112. EB. Poisson. 
B. Succulent plants, always armed with prickles, 
spines, or spine-shields on which the spines 
have become aborted ; involucre-glands 4-5, 
entire and without appendages, rarely united 
into a continuous rim, glabrous. 
Branches 4-(57) angled, spineless, with 
separate horny shields along theangles. 
(Branches or parts of them in 168, EZ. contro- 
versa, and 150, H. quinquecostata, are also some- 
times destitute of spines). 
Branches 4-4 in. (or perhaps more) square, with 
linear shields . 135. EB. heterochroma, var. 
Branches 1-1} in. square ; shields broadly obovate ae 
or broader than long. . . 169. B. Murieli. 
Branches cylindric, 1-2 in. thick, tousel- 
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 =e 
4-5 lin. long . Z i . 118. H. Sapini. 
Leaves narrowly lanceolate « or tapering ‘fr om 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 . - 
Spines ending abruptly at their dilated base, 
not forming a suborbicular shield, brown or 
greyish-brown , 5 - 
Branches angular or Sp itnucis, 1_4 in. 
thick, leafless ; main spines simple or 
forked, solitary or with a pair of small 
114,. E. unispina. 
115. E. venenifica. 
