668 ASCLEPIADE (Brown). | Asclepias. 
Corona-lobes measured along their backs not 
or but slightly longer than the staminal 
column ; corolla-lobes 2—4 lin, long : 
Dorsal apex of the corona-lobes scarcely or 
not at all exceeding the apical angles 
of the inflexed sides : 
Leaves linear, glabrous; umbels 3-11- 
flowered : bee ... (16) brevicuspis. 
Leaves lincar-lanceolate or lanceolate 
mostly broadest at the base, scabrous 
or harshly pubescent : 
Umbel 1-1} in. in diam., 12-25- 
flowered ; peduncles 34-7 in. long (44) densiflora. 
Umbel 14-2 in. in diam., 80-50- 
flowered; peduncles 2-4 in. long (46) Cooperi. 
Dorsal apex of the corona-lobes distinctly 
produced above the apex of the 
inflexed sides... “oa a4 ... (17) dissona. 
{+Leaves from almost as broad as long to 6 or 7 
times as long as broad, mostly broadest at the 
base, lanceolate or rarely linear-lanceolate, 
ovate, oblong, linear-oblong or elliptic (see 
also occasional short-leaved specimens of 15, 
A, flecuosa, 28, A. fruticosa, and 29, A. 
physocarpa) : 
{¢Umbels a terminal pair or 3 by the forking of 
1 peduncle, with a peduncle-like internode : 
2-44 in. long below them ... aS .-» (43) Woodii. 
ttU mbels usually 2 to several to a stem or branch 
mostly lateral at the nodes, or if solitary 
then lateral below the apex of the stem : 
Plant 1-8 ft. high, with stems 2+5 lin. 
thick at the base : 
Plant shrubbily branching, pubescent or 
tomentose on the young branches and 
back of the 24-8} lin.-long corolla- wie 
lobes wy ei a 5H ... (32) rotundifolia. 
Plant with a simple stem, glabrous on the 
young parts and back of the 44-6 lin.- 
long corolla-lobes oe ive ... (38) glaucophylla. 
Plant 3-14 ft. high, usually branching at the 
base, with stems rarely more than 1} 
lin. thick at the base : 
Corona-lobes in side view with the dorsal 
apex below or not exceeding the level 
of the teeth or apex of the inflexed 
sides : 
Peduncles 2-43 in. long, 2-4 times as 
long as the leaves at their base... (45) fallax. 
Peduncles 3-22 in. long, shorter than to 
14 times as long as the leaves at 
their base : 
Pubescence on umbels of rather long 
spreading white hairs; corona- 
lobes in side view rounded or 
scarcely angular at the dorsal 
apex ve fo bee ... (36) rara. 
Pubescence on umbels very short and. 
close, often rust-coloured or 
