174 



Polygonum flaccidum, Meissn. F.B.I., v. p. 39 ; Gage, Rec. Bot. 

 Surv. Ind., ii. p. 402. 



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

 Distr. S.E. Asia. 



Polygonum glabrum, Willd. F.B.I., v. p. 34 ; Gage, Rec. Bot. 

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

 p. 118 Hosseus, ii. p. 387. 



Wang Djao, Hosseus, 3 la, 31b, pro parte. 



Distr. Tropical and subtropical Asia, Africa, America. 



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

 Hosseus, ii. p. 387. 



Chiengmai, rice-field weed (ex Hosseus). 

 Distr. Trop. Asia, Africa, Australia. 



Polygonum Roxburgh!!, Meissn.,v&r. 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. Humboldtii. 



Antigonon leptopus, Hook, et Arn. 

 Bangkok, Zimmermann, 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 cruciatum in evergreen 

 jungle, 900 m., Kerr, 1616b. 



ARISTOLOCHIACEAE. 



Aristolochia Hookeriana, Craib, A. Tagalae, Cham., affinis sed 

 bracteis conspicuis, floribus seminumque alis minoribus differt. 



Caules scandentes, glabri, sulcati. Folia lanceolata vel late 

 lanceolata, apice acuta, basi cordata vel interdum sagittata, 

 5-15*5 cm. longa, 1*5-4*8 cm. lata, tenuiter chartacea, supra 

 marginem versus densius breviter hirsuta, subtus subglabra, e basi 

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

 marginem arcuatis omnibus supra conspicuis subtus cum nervis 

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

 plerumque simplices, petiolos paullo superantes, pedunculo communi 



