174 



Polygonum flaccidum, Mf?.s.s».— F.B.T., v. p. 39 ; Gage, Rec. Bot, 

 Siu-v. Ind., ii. [). 402. 



Chiengmai, bank of Meh Ping, 300 m., Kerr, 853. 

 Distr. S.E. Asia. 



Polygonum glabrum, Willd.—YM.l., v. p. 34 ; Gage, Rec. Bot. 

 Snrv. Ind., ii. p. 393 ; Coll. et Hemsl., Journ. Linn. Soc, xxviii. 

 p. 118 ; Hosseus, ii. p. 387. 



Wang Djao, Hosseus, 31a, 31b, pro parte. 



Distr. Tropical and subtropical Asia, Africa, America. 



Polygonum plebejum, Br., var. indica, Hook. /., F.B.I., v. p. 28; 

 Ho!?seus, ii. p. 387. 



Chiengmai, rice-field weed (ex Hosseus). 

 Distr. Trop. Asia, Africa, Australia. 



Polygonum Roxburghii, Mm5«.,var. longifolium, Meissn. — Hosseus, 



ii. p. 387. 



Chieng Dao, 350 m. (ex Hosseus). 



According to F.B.I., v. p. 28 this is identical with the preceding. 



Polygonum stagninum, Ham. — F.B.I., v. p. 37 ; Gage, Rec. Bot. 

 Surv. Ind,, ii, p. 397, 



Banks of Menam, Hosseus, 2 ; Wang Djao, Hosseus, 31b (Herb. 

 Kew, pro parte ! et Copenhagen !). 



Distr. India, Burma. 



Hosseus, ii. p. 386 refers his 2 and 316 (misprint for 31b?) to the 

 American P. acuminatum, var. Humholdtii. 



Antigonon leptopus, Hook, et Am. 

 Bangkok, Zvmmermann, 38. 

 Native of America. 



Muhlenbeckia platyclados, Meissn. — Hosseus, ii. p. 386. 

 Chiengmai, Doi Sootep, 1700 m., Hosseus, 215 (Herb. Kew! et 

 Copenhagen !). 



Native of Solomon Is. 



Rafflesiaceae. 



Richthofenia siamensis, Hosseus, Engl. Bot Jahrb., xli. p. 55, cum 

 tab. ; Hosseus, ii. p. 386. 



Chiengmai, on roots of Tetrastigma criiciatum in evergreen 

 jungle, 900 m., Kerr, 1616b. 



Aristolochiaceae. 



Aristolochia Hookeriana, Craib, A. Ta(/alae, Cham., affinis sed 

 bracteis conspicuis, floribus seminumque alis minoribus differt. 



Caules scandentes, glabri, sulcati. Folia lanceolata vel late 

 lanceolata, apice acuta, basi cordata Tel interdum sagittata, 

 5-1 5'5 cm. longa, 1 •5-4*8 cm. lata, tenuiter chartacea, supra 

 margincm versus densius breviter hirsuta, subtus subglabra, e basi 

 5-nervata nervis secondariis (e costa ortis) utrinque 2-4 intra 

 margincm arcuatis omnibus supra conspicuis subtus cum nervis 

 transversis promiuentibus ; petioli 0*7-2 cm. longi. Cymae axillares, 

 plerumquc simj)lices, petiolos paullo superantes, pcdunculo communi 



