ASCLEPIADACEAE. — CEROPEGIA 349 



TOXOCARPUS Wight & Arn. 



Toxocarpus villosus Decaisne in De Candolle, Prodr. VIII. 506 

 (1844). — Miquel, FL Ned. Ind. II. 475 (1856). — Hooker f., Fl. Brit. 

 Ind. IV. 13 (1883). — Costantin in Lecomte, Fl. Gen. Indo-Chine, IV. 

 51, fig. 7 (12-16) (1912). 



Secamone villosa Blume, Bijdr. XVI. 1050 (1826). — Koorders, Exkursionsfl. 



Java, III. 87 (1912). 

 Toxocarpus Wightianus Hemsleyin Joxir. Linn. Soc. XXVI. 101 (non Hooker 



& Arnott) (1889). 

 Secamone Wightiana Diels & Schlechter in Bot. Jahrb. XXIX. 543 (non K. 



Schumann) (1900). 

 Toxocarpus Wightianus, var. hirta A. Henry, Mss. in Herb. 



Western Hupeh : Hsing-shan Hsien, ravines, rare, alt. 300-900 m., 

 May 9, 1907 (No. 1943; climber 2.5 m. tall, flowers yellow); Ichang, 

 A. Henry (Nos. 3281, 3515). 



SIAM. Without precise locaUty, Mrs. M. C. Bradley (No. 34). 



Wilson's and Henry's plants agree well with T. villosus as described and figured 

 by Costantin. I have not seen a type specimen, and a careful study of the whole 

 genus would be necessary to show if our plant is indeed identical with Blume's 

 Javanese type. The Hupeh plants certainly are very different from T. Wightianus 

 Hooker & Arnott (Bot. Voy. Beechey, 200 [1836]. — Secamone Wightiana K. Schu- 

 mann in Engler & Prantl, Nat. Pflanzenfam. TV. Abt. 2, 263 [1895]), of which I 

 have seen specimens from Hainan and Hongkong. It has smaller, more glabrous 

 and shining leaves and a very short and dense inflorescence. The flowers are smaller 

 too, and the stigmas are shorter, undivided and enlarged, while in our species the 

 stigma (the part of style above the gynostegium) is enlarged only at the base, being 

 slender toward the end and divided at the apex. The length of the coma of the 

 seeds seems to be variable, as well as the pubescence at the base of the corolla- 

 lobes. 



CEROPEGIA L. 



Ceropegia (§ Phananthe) driophila Schneider, n. sp. 



Suffrutex 0.75-1.25 m. altus, scandens; caules filiformes, teretes v. 

 leviter striato-angulati, flavescentes, glabri, laxe foliati. Folia tenuiter 

 membranacea, oblonga v. ovato-oblonga, basi subcordata, apicem ver- 

 sus sensira distincte acuminata, superne sparse breviter pilosa, subtus 

 vix pallidiora, glabra v. glabriuscula, margine ciUata, 2.5-6.5 cm. longa, 

 basim versus 1-2.4 cm. lata (in specimine Henryano ad 5: 2.8 cm. 

 magna) ; petioli tenues, superne ut videtur paulo sulcati, glabri v. ad 

 apicem superne sparse pilosuli, 1-2.2 cm. longi. Cymae pedunculatae, 

 2-8-florae; pedunculi 1-1.5 cm. longi, glabri; pedicelli graciles, glabri, 

 1-1.5 cm. longi, basi bracteis linearibus glabris v. vix pilosis 1-1.5 mm. 



