Secamone. | LXXXY. ASCLEPIADEH (BROWN). 277 
Corolla-tube 4-4 lin, long, never exceeding half the 
length of the lobes; flowers in simple or paniculate 
cymes, 
Corolla pubescent within : - . 4 S. Alpini. 
Corolla glabrous within and without. 
Leaves linear. 
Style scarcely exserted beyond the anthers, 
cushion-like at the top : . 14, 8, frutescens. 
Style distinctly exserted beyond the anthers ; 
apical part obconic-clavate or broadly 
dilated. Zl 5 Ay RE punctulata, var. 
Leaves ovate, lanceolate, elliptic o or oblong. 
Leaves retuse at the apex, with an apiculus in 
the notch 6 ° 
Leaves acute or obtuse, but wot notched at the 
apex. 
Flowering-branchlets, as well as the cymes, 
distinctly pubescent or subtomentose with 
spreading hairs. 
Young leaves glabrous on both sides or with 
only a few hairs on the midrib beneath 11. 8. floribunda, 
Young leaves pubescent beneath or on beth 
3. S. retusa. 
sides. 
Leaves 1}~—23 in. long; pedicels 2—4 lin. 
long : . 12. 8S. Whytet. 
Leaves is in. long; pedicels 3-2 tin. 
lon 5 . 13. S. Stuhimanni. 
Flowering-branchlets glabrous, but the c ymes 
sometimes pubescent. (In S. zambesiaca 
the flowering-branchlets have two obscure 
thinly pubescent lines along them, but 
the minute hairs are adpressed, not 
spreading. 
6. S. myrtifolia. 
Style not exceeding the anthers > : 
Style distinctly exserted beyond the 
anthers. 
Cymes (in the dried state) usually about 
+ (rarely $) in. in diam., with sub- 
umbellate branches or flowers. 
Style clavate-obconic or broadly dilated 
at the top; leaves lanceolate or 
oblong-lanceolate : 
: . 15. S. punctulata, 
Style terete or nearly so in the apical 
part. : 
Leaves lanceolate, acuminate . 16. S. mombasica. 
Leaves orbicular or elliptic, obtuse 
or acute, apiculate . 
Cymes 3-13 in. in diam. 
Branches of the cyme ascending or 
somewhat clustered : style cylin- 
dric, not dilated at the top nor 
deeply bifid. 
Leaves broadly ovate, thin, submem- 
branous. 
Leaves acute; pedicels 1-2 lin. 
long . : 5 : 18. S. zambrsiaca. 
. 17, S. Schweinfurthii. 
