24 XCT. ASCLEPIADEJ!. (J. D. Hooker.) [Cynanchum. 



greenish; segments oblong-lanceolate, longer than the corona, which is membranous 

 and pale. Filaments forming a column longer than the anthers. 



8. C. Callialata, Ham. in Wight Contrib. 56; twining, glabrous or 

 very sparsely hairy, leaves coriaceous from rounded or oblong or ovate to 

 linear acuminate glaucous beneath, base contracted cordate, nerves spreading 

 obscure, umbels shortly peduncled nearly glabrous flowers glabrous, corona 

 short cupular irregularly 5-toothed and crenate, follicles 2-winged. Wall. 

 Cat. 8226 ; Wiffht Ic. t. 1279. C. auriculatum, Serb. Ham. C. angustifoliiim, 

 Wight ^ A. I. c. 57. CynOctonum Callialata and angustifolium, Bene, in DC. 

 Prodr. viii. 528, 529. Periploca tunicata, Herb. Madr. 



Behae ; summit of Parusnath, J. D. H., &o. Deccan Pekinsula, from the Con- 

 can to Travancore. Buema at Hengadah, Wallich. 



Stem robust, glabrous or sparingly hairy. Leaves 3-5 in., very variable in 

 breadth, basal lobes small rounded, sinus narrow, midrib broad, nerves very slender 

 spreading ; petiole ^-1 in. Peduncles shorter than the petioles. Flowers ^ in. diam., 

 quite glabrous Corona follicles and seeds as in C. alatiom. — Very closely allied to 

 6'. alatum, but quite distinct in the much larger size and glabrous habit. 



tt Pedunoles of cyme long, slender. 



9. C. corymbosum, Wight Contrib. 56 ; quite glabrous, leaves ovate- 

 or orbicular-cordate cuspidate or acuminate membranous glaucous beneath, 

 basal lobes rounded decurved or incurved, peduncles long equalling the long 

 petioles, corona campanulate plicate with longitudinal thickenings within, mouth 

 irregularly crenate, anthers sessile, follicles large clothed densely with long 

 fleshy spines. Wall. Cat. 8222, 8231, F. Cyn'octonum corymbosum. Dene, in 

 DC. Prodr. viii. 528. 



SiKKiM Himalaya, alt. 2-4000 ft. Clarke. Khasia Mts., Silhet and Cachae, alt. 

 1-SOOO ft. Wallich, &c. Penang, Wallich. Nicobar Islds. Kurz. 



Stem rather stout. Leaves 2-6 by 1-3 in., membranous, white beneath ; petiole 

 lJ-3 in. Peduncle slender; flowers racemose or corymbose, ^^ in. diam. quite 

 glabrous. Sepals ovate, obtuse. Corolla-segments obtuse. Corona large, much 

 longer than the short column, with internal thickenings as in C. alatum. Seeds 

 ^ in. long, orbicular-ovoid, with a wrinkled nucleus surrounded by a very broad 

 wing dee^y crenate at the lower end. — The large lanceolate almost fleshy follicles, 

 4-5 by 1-1| in. diam., densely clothed with soft reversed hooked spines ^-J in. long, 

 are quite peculiar, and recall those of Dmmia. It is remarkable that this species, 

 though collected both in the Nicobar Islands and Peuang, should never have been 

 found in Burma or the Malay Peninsula. 



10. C. deltoideum, Hook. /, ; twining, glabrous or nearly so, leaves 

 deltoid-cordaite acuminate membranous, peduncles slender, flowers small 

 umbelled glabrous, corona lO-lobed to the middle, 5 lobes large ovate obtuse, 

 5 intermediate very small rounded. 



Khasia Mts. ;,Kalapanee and Moflong, alt. 5-6000 ft., J. D. H. f T. T. 



Stem slender. Leaves 2-3 in. long and nearly as broad, pale beneath, basal lobes 

 large rounded, sinus broad; petiole 1-1^ in. Umbels many-fld. ; peduncle longer 

 than the petiole, and pedicels hairy. Sepals ovate, glabrous. Corona concealing the 

 sessile column, the large lobes elliptic and thickened, smaller membranous. 



*** Stem twining or suberect. Corolla glabrous or pubescent. Corona with 

 processes on its inner face (sometimes absent in C. aculum). 



t Corolla glabrous vdthin. 



11. C. acutum, Linn.; Boiss. Fl. Orisnt. iv. 60; twining, glabrous or 

 nearly so, leaves narrowed from a broad 3-lobed or hastately cordate base 



