Vinca.] 
APOCYNACEJi. 
225 
Seychelles. It is a low half-shrubby glabrous perennial, with short- 
petioled obovate-oblong obtuse leaves cuneate at the base, flowers 
1-3 sessile in the axils of many leaves, calyx small with 5 setaceous teeth, 
corolla hypocrateriform rose or white with a slender tube and oblique 
obovate segments, stigma bearded at the top and furnished with a cup- 
shaped membrane below, and 2 cylindrical vertically- striated follicles 
about an inch long, containing each 15-20 seeds. Saponaire. 
JPervenche. 
Order LXIX. ASCLEPIADACEiE. 
Flowers regular, hermaphrodite, pentamerous. Calyx free, campa- 
nulate, mostly minute ; teeth 5. Corolla rotate ; divisions 5, spread- 
ing, linear, lanceolate or deltoid. Corona usually present, single or 
double ; stamens 5, connate with the stigma into a mass (gynostegium) ; 
anther-cells 2-4 ; pollen grains connate into 10-20 pendulous or erect 
granular or waxy masses (pollinia). Pistil free, 2-carpellary ; pla- 
centation sutural ; ovules numerous, pendulous, anatropous ; style 
short, simple ; stigma pentagonal. Fruit of two divaricating ovoid or 
clavate-fusiform acuminate smooth or prickly follicles. Seeds usually 
furnished with a dense crest of hairs, albuminous. — Shrubs or herbs, 
with abundant milky juice. Leaves, if present, opposite, entire. 
Flowers mostly small, umbellate or cymose. Distrib. Cosmopolitan ; 
mostly tropical. Species 1300. 
Pollinia granular 1. Tanulepis. 
Pollinia waxy. 
Pollinia 20, erect 2. Secamone. 
Pollinia 10, pendulous. 
Leafless climbers with a double staminal corona. 
Inner row of corona the smallest ; scales all cuspidate 3. Decanema. 
Inner row of corona the largest ; scales not cuspidate . 4. Sarcostemma. 
Erect perennials with a single staminal corona. 
Leaflets of corona with a hooked horn from the face . * Asclepias. 
Leaflets of corona without any horn 5. Gomphocarpus. 
Pollinia 10, erect or ascending 6. Tylophora. 
1. TANULEPIS, Balf. fil. 
Calyx small, deeply 5 -fid, with 5 basal glands on the inside. Co- 
rolla sub-rotate, deeply 5-cleft ; segments subvalvate. Corona single ; 
scales 5, lanceolate, as long as the petals, submeinbranous, connate 
in a ring at the base and adhering to the base of the gynostegium ; 
stamens opposite to the lobes of the corona; filaments broad, short; 
anthers cuspidate ; pollinia granular. Stigma 5-angled. Follicles 
spreading, slender, faintly ribbed. Distrib. A single endemic 
species. 
1. T. sphenophylla, Balf. fil. A climber, glabrous in all its parts, 
with slender terete branches. Leaves oblong-lanceolate, 2-3 in. long 
acute, cuneate at the base, membranous ; petiole i~ | in. long. Cymes 
Q 
