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132 



ASCLEPIADACEAE. 



Zygostelma Benthami, Baill. Hemidesmus indicus, Williams, 

 Bull. Herb. Boiss., v. (1905) p. 950, non R. Br. 



Anhin, Schomburgh, 284. 



Streptocaulon Griffithii, Hook./., F.B.I., iv. p. 10. S. tomeniosum, 

 Williams, Bull. Herb. Boiss., v. (1905) p. 949, non Wight. 



Chiengmai, in mixed and evergreen jungles on Doi Sootep, 

 330 m., Kerr, 1244 ; Anhin, Schomburgk, 252. 



Distr. Tenasserim, Mergui, Tonkin, S. China. 



Myriopteron extensum, K. Sch. — Hosseus, ii. p. 427. M. panicu- 

 latum, Griff. — F.B.I., iv. p. 11. Streptocaulon extensum, Wight — 

 For. Fl. Burma, ii. p. 198. 



Chiengmai, in mixed jungle, foot of Doi Sootep, 300 m., Kerr, 770 ; 

 Kampeng, 80 m., Hosseus, 24. 



Distr. Bengal, Assam, Burma, Yunnan. 



Secamone micrantha, Dene. 



Sriracha, near sea-shore, Kerr, 2044. 



Distr. Malaya (S. China ?). 



Toxocarpus Hosseusii, SchlechUr, Engler Bot. Jahrb., xl. Beibl. 

 92, p. 1 ; Hosseus, ii. p. 427. 



Paknampo, Hosseus, 13 ; ? Chiengmai, in scrub jungle, 300 m., 

 Kerr, 1668. 



The specimens collected by Kerr are in fruit only and are 

 referred doubtfully to this species. 



Oxystelma esculentum, Br. — F.B.I., iv. p. 17. 



Chiengmai, 300 m., Kerr, 1443. 



Distr. S.E. Asia. 



Lao name, Kio Kou Mai (ex Kerr). 



Calotropis gigantea, Br. — F.B.I., iv. p. 17; For. Fl. Burma, ii. 

 p. 200. 



Bangkok, Zimmermann, 152 ; Chiengmai, 300 m., by moat, Kerr, 

 1957. 



Distr. India, Burma, China, Malaya. 



Lao name, Pirn Tuan (ex Kerr). 



Asclepias curassavica, Linn. — F.B.T., iv. p. 18 ; Coll. et Hemsl., 

 Journ. Linn. Soc, xxviii. p. 87 ; Hosseus, ii. p. 427. 

 Chiengmai, Doi Sootep, 1020 m., Kerr, 874. 

 Native of Trop. America. 



Raphistemma pulchellum, Wall. — F.B.I., iv. p. 19. 

 Chiengmai, in scrub jungle, 300 m., Kerr, 1469. 

 Distr. Sikkim, Yunnan, Burma, Assam. 



Gymnema Griffithii, Craib, a G. molli, Wall., caulibus pilis longius- 

 culis patulis instructis, corona diversa recedit. 



Caules repentes vel volubiles, albo-tomentelli praetereaque pilis 

 longiusculis patentibus densius instructi. Folia ovato-elliptica, 

 ovato-lanceolata vel rarissime elliptica, apice acuminata, basi 

 rotundata vel obtusa, 3-5 cm. longa, l*2-3'6 cm. lata, rigide chartacea, 

 supra parce adpresse albo-pilosula, subtus molliter pubescentia, 

 margine integra, ciliata, nervis lateralibus utrinque 4-5 intra 

 marginem arcuatis supra conspicuis subtus cum nervis transversis 



