ee ee ee ee eR a ee 
Physostelma. | XCV. ASCLEPIADER. (J. D. Hooker.) 63 
SINGAPORE ; Wallich.—Distrip. Java? 
Leaves 3-5 by 11-21 in., elliptic-oblong, acuminate, coriaceous, nerves reticulate ; 
petiole fin. Cymes globose, 3-4 in. diam. ; peduncle 1—2 in., stout ;"pedicels as long, 
slender. Corolla 1-1} in. diam., pale yellow, lobes apiculate. Column } in. diam., 
the radiating coronal-processes narrowly oblong, horny and yellow when dry. 
46. PYCNORHACHIS, Benth. 
A hairy twining undershrub. Leaves opposite, very shortly petioled, mem- 
branous, villous. Flowers black-purple, in reflexed pairs spirally disposed round 
the long fleshy branches of an axillary racemiform cyme. Sepals subulate. 
Corolla-tube short, thick, throat annulate; lobes elongate, subulate-lanceolate 
from a broad base, hairy within, valvate in bud.  Coronal-scales 5, spreading 
at the base of the column opposite the anthers. Column short, adnate to the 
middle of the corolla-tube ; anther-tip long, subulate, hyaline; pollen-masses 
one in each cell, long, slender, shortly pedicelled, cylindric, waxy, erect. Ovary 
sunk in the calyx-tube ; stigma obtusely conical, 5-angled, much shorter than 
the anther-tips; ovules many. ollicles curved, cylindric, obtuse, glabrous. 
Seeds comose. 
P. Maingayi, Hook. f. 
Matacca ; very rare, Maingay. . . 
Branches hispidly hairy. Leaves 4-6 by 14-2 in, oblong-obovate, acuminate, 
villous on both surfaces, base narrowly cordate or 2-lobed at the insertion of the 
petiole ; nerves 10-12 pair, spreading; petiole }-} in., villous. Cymes 5-6 in. long, 
branches few, jin. diam. Corolla 3 in. long, dark purple ; annules of throat fringed 
With hairs. Corpuscle slender. Follicles 5 in. long by $ in. diam., sickle-shaped.— 
Description chiefly from that and the drawings of the discoverer of this very curious 
genus, which resembles no other. 
TRIBE V. CEROPEGIEZ. 
47. LEPTADENTA, Zr. 
Erect, rigid, almost leafless, or twining, hoary or glabrous, leafy shrubs. 
Leaves elliptic or ovate-cordate. Flowers small, in crowded axillary umbelli- 
form cymes. Calyx turbinate, shortly 5-lobed. Corolla rotate ; lobes pubescent 
or bearded, margins recurved, valvate in bud. Corona double, corolline of 5 
scales between the corolla-lobes; staminal of a raised undulate wing at the 
base of the anthers. Column short; anthers inflexed, obtuse, tips appendicu- 
late; pollen-masses one in each cell, globose, sessile, erect, tips pellucid. Stigma 
included, flat, 5-gonal, 2-cuspidate. Follicles rigid, acuminate, smooth. Seeds 
comose, flat, winged.—DISTRIB. Species 12 ; tropical Asia and Africa. 
l. L. reticulata, Wight $ Arn. Contrib. 47 ; twining, leafy, leaves ovate- 
Cordate or elliptic acute glabrous or hoary beneath, cymes peduncled hoary. 
Wight Ic. t. 350; Wall. Cat. 8197 ; Dene. in DC. Prodr. viii. 628. L. appen- 
diculata, Dene. l.c. L. imberbe, Wight Contrib. 48; Wall. Cat. 8198. L. 
brevipes, Wight Cat. 1586; Dene. l.c. Cynanchum reticulatum, Retz. Obs. 
li. 15. ©. asthmaticum, Herb. Ham. ?O. ovatum, Thunb. ; Dene. l.c. 548. 
Secamone canescens, Sm. in Rees Cycl. Asclepias tuberosa, Rovd, Fi, Ind. 
1.98. A, volubilis, Herb. Madr. Gymnema aurantiaca, Wall. mss. 
Eastern Ponsap, at Amballah, Edgeworth ; and from Banna southwards through 
the Deccan PRNINSULA. Burma, Wallich. Srycaporr, Lobb. CEYLON, at Amoor- 
hapoora, Gardner.—Distrip. Ava. . . 
Dark corky; young branches, &c., hoary. Leaves 1-2 in., coriaceous, pale, both 
