304 MONOPETALEXZ—HYPOCOROLLES. 
ORDER LXIV. 
APOCYNE#. 
Apocynee and Asclepiadee, Lindley ; Strychnee, De Cand. ; 
Vinceea, De Cand. 
Cuaracters.—Milky herbs, shrubs, or trees, with entire — 
opposite or whorled leaves without stipules, but with glands 
or ciliz on the petioles ; flowers in a sort of corymb, umbel, 
or raceme: calyx monosepalous, of 5 divisions, persistent ; 
corolla monopetalous, 5-lobed, sometimes with appendages 
at the orifice of the tube, deciduous ; stamens 5, inserted 
upon the corolla, alternate with its segments, sometimes mo- 
nadelphous and surrounding the ovary, the anthers close to | 
the stigma; pollen sometimes pulverulent, sometimes united _ 
in masses, occasionally adhering to some projections of the 
‘Stigma ; ovaries 2 (rarely 1 from the union of the two), — 
many-seeded, with the seeds attached to a longitudinal pla-~ 
centa at the ventral suture of each cell; styles sometimes 
united at the apex into 1 stigma, often short ; pericarp a fol- 
licle, of which there are 2, a drupe or capsule, (rarely a berry), 
dehiseing by a longitudinal suture ; seeds with an embryo 4 
in a small fieshy albumen, some having an appendage of — 
dewny. hairs. ‘ 
__ This family has been divided into two sections ; the Ascle- 
sini, which have the stamens united, the orifice of the co- 
rolla with five appendages, the estivation imbricate, and the 
pollen in masses ; and the true Apocynea, with the stamens _ 
oo distinct, he cree of the corolla generally naked, the esti- _ 
eek Asclepiadee ; Swallow-wort (Asclepias), 
Cynanchum, Mudar plant (Calotropis Mudarii, or C. gigan- 
tea): 2. Apocynee ; Periwinkle (Vinca major) Dog’s-bane — 
a tne once cara << 
