742 Asclepiadaceae. 
culate-tessellate, or toothed along the angles, 
leafless or the teeth tipped with rudimentary or 
small subulate fleshy leaves, or the tubercles or 
teeth bearing stout conical or spine-like or slender 
bristles. Flowers fleshy. Corona arising from 
the staminal-column, none on the corolla . . .. 10, Caralluma. 
423. (1.) Periploca Linn. 
Calyx 5-partite. Corolla rotate, 5-lobed nearly to the base; 
lobes overlapping and: slightly twisted to the left in bud. Corona 
of 5, filiform’ or linear lobes, arising from the corolla at or a little 
above the insertion of the stamens and opposite to them, simple or 
divided, with or without a more or less: broadly dilated base, which 
is often more or less spreading on and adnate to the base of the 
corolla-lobes, and usually two-keeled within. Stamens arising from 
the corolla a little above its base; filaments free, short; anthers 
adnate to the style at their base, hairy on the back or at the base. 
with the connective produced into an apiculus, by which they are 
usually connate at their tips. Pollen granular. Style shorter than 
the anthers, convex or subtruncate at the apex. Follicles smooth. 
Seeds crowned with a tuft of hairs. — Twining or erect shrubs, 
rarely leafless. Leaves opposite. Flowers of moderate size, or small. 
in lax axillary or terminal cymes. 
Species several; the genus extends into North Africa, the Canaries, 
South Europe and through the Orient into India and China. 
A. Tall shrubs, more or less climbing by twining of 
the stems. 
I. Leaves ovate to ovate-lanceolate, short-petioled 1. P. graeca, 
II. Leaves elliptic-linear, nearly sessile. . ... . 2. P. laevigata. 
B. Rigid, almost leafless shrubs, not twining or climbing 3. P. aphylla. 
1044. (1.) Periploca graeca L. Spec. Plant. 1 (1753), p. 309. 
— Boiss. Flor. Or. IV, p.49. — Sibth. and Smith Flor, Graec., 
tab. 249. — Bot. Mag., tab, 2289. — DC. Prodrom, VIII, p.498. 
A tall shrub. Leaves opposite, ovate to oblong-lanceolate, obtuse 
or acute, 50 em to 1m long, glabrous, short-petioled. Cymes 
terminal, loose; corolla 1,5—2 cm broad, brownish-green, lobes 
oblong, retuse, bearded at the margin; scales of crown 2-auricled, 
ending in an undivided awn; follicles somewhat divergent. — Flow. 
January to March. 
M. ma. Alexandria, in gardens and often naturalized. 
Also known from Italy, Dalmatia and Greece. 
