Euphorbia. } CXXII, EUPHORBIACE® (BROWN). 
Involucre and ovary glabrous, 
solitary or in a terminal 2-3- 
flowered cyme = . 
Plant 13-3 or more ft. high; in- 
volucres scattered along one side 
of long flowering branches or 
. Solitary in the forks and _ ter- 
minal. 
Ovary and capsule pilose or tomen- 
tose with rather long soft 
spreading hairs. 
Capsule thinly hairy; soe 4 
lin. long . 
Capsule densely hairy ; ‘styles 
1-lflin.long . : ° 
Ovary and capsule puberulous with 
minute adpressed hairs or 
minutely  white-tomentose ; 
leaves linear to elliptic. 
Leaf-blade 4-2 in. long, entire ; 
styles 1 lin. long; seeds eon- 
stricted at the middle 
Leaf-blade 1-44 in. long, usually 
more or less toothed ; styles 
4-2 lin. long. 
Leaves petiolate, without 
gland-tipped teeth at the 
base; seeds ovoid, acute, 
tuberenlate 
Leaves subsessile witha spread- 
ie ing gland-tipped tooth on 
each side at the base; seeds 
4 dorsally flattened, 3-grooved 
down the inner face . . 
ttInvolucres in terminal 3-10-rayed 
umbels of forked or umbellately 
divided (rarely simple) rays, with 
or without similar rays arising 
below the umbels, in a few species 
with the umbel reduced to a small 
terminal head-like cluster; leaves 
opposite below the whorl under the 
umbel in 52, 4. verticillata, al- 
ternate in all the others. 
Leaves or the lower reflexed or re- 
curved-spreading. 
Leaves 13-3} in. long, lanceolate 
to elliptic-lanceolate; involucre- 
glands reniform, 2-lipped, en- 
tire . “ A ° . z 
Leaves 1-12 in. long. 
Leaves oblanceolate; involucre- 
glands with a minute point 
(not horn) at each end . ‘ 
50. 
40. 
43. 
43. 
44. 
67. 
E.. lederinanniana, 
EE. Benthami. 
E, systyloides, var. 
hebecarpa. 
2. 1. systyla. 
L.. systyloides. 
E. pseudoholstii, 
2. HL. ugandensis. 
EB. petitiana. 
