1068 ASCLEPIADACEAE 
Follicles echinate-warty, sometimes only near the 
Follicles erect on erect pedicels. 
‘lowers scarlet and yellow. 
Flowers purplish, pink, or white. 
eaves merely opposite, aot whorled. 
Leav es, at least at sonie of the nodes, whorled 
in or 
TORR green: crown green, greenish-white or yellow- 
iged. 
Follies erect on deflexed pedicels. 
pau erect m erect pedicels. 
Crown about half as long as the androecium: hoods deeply 
ai. Dy Eu projection of 2 dcuminate "lateral lobes: 
umn no 
I. TUBEROSAE 
Leaf-blades acute or acutish, lanceolate or lance-elliptie : horn 
GE C-]obes 1/3 the En gth of the corolla-lobes or less: 
ood narrowly elli 
Gi lobes nearly as ine as the corolla-lobes : hoods obo- 
Leaf-blades obtuse and broadly rounded, pandurate: horn 
very stout. 
II. RUBRAE 
Corolla and crown orange-scarlet. 
Corolla and crown red or purple. 
eaf-blades glabrate, or Tot beneath. 
Leaf-blades ovate, ovate-lanceolate, M elliptic-lanceo- 
late, acuminate, distinctly petio 
i blades lanceolate to linear- lanceolate, attenuate, 
runcate or nearly cordate-clasping at the Hare 
Leaf- blades densely and softly pubescent benea 
III. AMPLEXICAU 
A stiffly erect plant ms an glossy m po blades 
with crisped margin 
IV. HUMISTRATAE 
Plant with one or several prostrate stems, the vertically 
placed leaves with white veins. 
V. IIXALTATAE 
Umbel loosely flowered, the pedicels more or less nodding: 
flowers greenish-red. 
VI. SYRIACAE 
Tall herb with broad spreading leaves and with many-flow- 
ered umbels in the axils of some of them. 
VII. Cv naan 
Tall plant with bright-green leaves and s howy “flowers, the 
scarlet corolla and yellow crown very conspic 
VIII. INCARNAT 
Flowers pink or purplish: leaf-blades abruptly SPEME at 
the base, short-petioled or nearly sessile. 
Plant nearly glabrous: n pe narrow, lanceolate to 
lance-elliptic or nearly 
Plant softly and copiou sly ipsums leaf-blades rather 
broad, broadly lanceolate to elliptic d ig acepte 
Flowers white: leaf-blades tapering to a long pe 
IX. QUADRIFOLIA 
Slender plant with few leaves, the relatively an flowered 
umbels with very slender pedicels. 
. TOMENTOSAE 
Hoods much exceeding the androecium the projecting tip 
slightly recurved: horn at about the "middle e is hood. 
Hoods about equalling the androecium, turgid, cate and 
slightly fornicate; horn at the top of "the Ehe 
Horn with the triangular or tri ansuiqE ie decal ate tip only 
Horn w ith the subulate tip much exserted. 
C YI. i depu. 
VII. CURASSAVICAE. 
VIII. -INCARNATAE. 
"IX. QUADRIFOLIAE. 
X. TOMENTOSA 
XI. oo 
XIL CINERE AE. 
very slender. 
1; 
A. 
decumbens. 
. tuberosa. 
Rolfsii. 
lanceolata. 
rubra. 
laurifolia. 
purpur d ne 
. amplexicaulis. 
. humistrata. 
. exaltata. 
. Syriaca. 
. curassavica. 
. incarnata. 
. pulchra 
; perennis. 
. quadrifolia. 
. obovata. 
. aceratoides. 
. tomentosa. 
