Luphorbia. | (XXII, EUPHORBIACEE (BROWN), 475 
Involucre 1-23 lin. in diam., 
including the conspicuous 
gland-appendages; leaves 
and pubescence variable. 
Stems prostrate, much 
branched . ; ° 
Stems prostrate or erect and 
clustered, simple or spar- 
ingly branched . 
Involucre 4-3 lin. in diam., 
including the mostly in- 
conspicuous or sometimes 
absent gland-appendages. 
Leaves rather thick and fleshy 
or rigidly coriaceous, 
glaucous, without a red 
spot, usually crowded. 
Leaves acute . : = 
Leaves very obtuse or 
rounded at the apex, 
sometimes apiculate. 
Involucre minute, about 
3 lin. in diam.; leaves 
entire or minutely 
toothed at the apex . 
Involucre # lin. in diam. ; 
leaves with very 
minutely toothed car- 
tilaginous margins . 
Involuere 3 lin, in diam. ; 
leaves entire or very 
obscurely toothed at 
the apex . ° 
Leaves herbaceous, not glau- 
cous, toothed or entire. 
Leaves ablong, often with 
a red spot 
Leaves linear or linear- 
lanceolate, no red spot . 
+t+Branches prostrate, puberulous on the 
upper side, at least along a central 
line, with minute curved (rarely 
straight) hairs, glabrous on the 
under side; leaves sometimes pu- 
berulous beneath. 
Involucre (including the conspicuous 
red gland-appendages) 13-2 lin. 
in diam. . 
Involucre (including the gland- -ap- 
pendages) }-1 lin. in diam. 
Primary stems 2-8 in. long; gland- 
appendages just exceeding the 
margin of the gland or obsolete. 
Pubescence on branches of 
minute curved hairs. ° 
15. E, Rive. 
9. E. zainbhesiana and vars. 
16. E. propingua. 
14, E. Nelsit. 
12. “. glanduligera. 
13. L. subterminalis. 
21. L. sanguinea. 
17. E. polycnemoides. 
22. E. rubriflora. 
24. HE. prostrate. 
