484 CXXII. EUPHORBIACE (BROWN). | Euphorbia. 
Branches tuberculate with prominent 
flowering cushions 1-2 lin. in 
diam.; styles 4 lin. long. . 88. £. nodosa. 
Branches distinctly succulent or if sub- 
woody with a green or greyish bark . 
Involucre and ovary puberulous or 
pubescent. 
Branchlets not articulated to the 
stout branches; involucres solitary 
(always ?); pedicel of ovary 
scarcely exceeding the involucre . 94. EH. Rogevii. 
Branchlets articulated to the branches ; 
involucres 3 or more together in 
terminal clusters; pedicel of 
ovary much exceeding the in- 
volucre. 
Ultimate branchlets mostly about 
1 lin. thick (dried); male in- 
volucres 1}—2 lin. in diam, . 1038. E. media, and var. 
Ultimate branchlets usually about 
13 lin. thick (dried); male in- 
volucres 2 lin. in diam. . . 104. E. rhipsaloides. 
Involucre and ovary (where known) 
glabrous. 
Branchlets opposite or forked. 
Flowering branchlets 1-1} lin. thick 
(dried); involucre 14 lin. in 
diam. . 106. E. negromontana. 
Flowering branchlets ia lin. thick 
(dried) ; involucre scarcely 1 lin. 
in diam. . : : A . 107. E. spartaria. 
Branchlets alternate or some opposite, 
irregular. 
Involucres 1 lin. in diam.,, sessile or 
subsessile in small clusters at the 
tips of the branchlets ; bien Flin. : 
long : . 105. H. scoparia. 
Involucres 14-3 lin. in diam., in 
terminal umbels or cymes, on 
peduncles (rays or branches) 
13-10 lin. long. 
Mature involucre (including 
glands) 3 lin, in diam.; styles 
llin. long. : : . 100. EB. nubiea. 
Mature involucre (including 
glands) 13-2 lin. in diam. 
Branches (dried) evidently 
fleshy ; umbel-rays or pedun- : 
cles 3-10 lin. long. 97. E. latery 
Branches (dried) s patently 
somewhat woody ; umbel- 
rays or peduncles 14-5 
lin. long. 
Bracts under the involucre 
broadest near or at the 
