29 



Grewia polygama, Roxb., var. Hosseusiana, Drummond apud 

 Hosseus, ii. p. 409. 



Wang Djao, 100 m. (ex Drummond). 



Grewia tomentosa, Juss. Fl. Indo-Chine, i. p. 535 ; Hosseus, ii. 

 p. 409. 



Banks of Meh Ping near Raheng, 120 m., Kerr, 903 ; Wang 

 Djao, 100 m., Hosseus, 69 ; Muong Pran, Pierre, 3834. 



])istr. Java, Cambodia. 



Grewia trichodes, Voigt. G. pilosa, Roxb., non Lamarck. 



Chiengmai, 300 m., Kerr, 1249. 



In identifying the plants belonging to this critical genus I have 

 availed myself of the able assistance of Mr. J. R. Drummond who 

 has spent much time in the study of this group. The present state 

 of our knowledge of the Indo-Chinese species and the complicated 

 synonymy of the Indian species have forbidden the giving as full 

 references to published works as have been given throughout the 

 rest of this paper. 



Columbia flagrocarpa, C. B. Clarke ex Brandis, var. siamica, 

 Craib, a typa ramulis paniculisque pilis longis haud vel parcissime 

 instructis, petiolis tenuioribus paulo longioribus, foliis basi vix tarn 

 obliquis, fructusque umbonis pilis minus rigidis. Craib, Kew Bull. 

 1911, p. 23. 



Chiengmai, mixed jungle on Doi Sootep, 450-540 m., Kerr, 895, 

 895a. 



At first sight the variety is markedly different from the type in 

 the total or almost total suppression of the rather long stiffish hairs 

 on the branchlets and panicles. The type is represented by 

 Clarke's fruiting Chittagong specimens only and the fruit except 

 for the rather stiffer hairs on the umbo is very similar to that of the 

 Siam plant. 



Columbia floribunda, Wall. F.E.I., i. p. 393 ; For. Fl. Burma, i. 

 p. 156 ; Coll. et Hemsl., Journ. Linn. Soc., xxviii. p. 28 ; Fl. Indo- 

 Chine, i. p. 549 ; Hosseus, ii. p. 403. 



Chiengmai, Doi Sootep, 660 m., Kerr, 1325, Hosseus, 576 (as to 

 leaves only) ; Koh Yai, Hosseus, 85. 



Distr. Burma, Assam, Yunnan. 



Triumfetta pseudocana, Sprague et Craib, Kew Bull. 1911, p. 23. 

 T. cana, Lawson, F.B.[;, i. p. 396, non Blume. T. tomentosa, 

 Gagnep., Fl. Indo-Chine, i. p. 552, vix Bojer. 



Chiengmai, Doi Sootep, 300-720 m., Kerr, 810. 



Distr. India, China, Tonkin, Malaya, Philippines. 



Triumfetta procumbcns, Williams, Bull. Herb. Boiss., v. (1905) 

 p. 28, non Forst. f. 



The sheet quoted by Williams i.e. contains specimens belonging 

 to two distinct species and moreover both specimens were collected 

 in the island of Phu Quoc in Cochinchina and not in Siam. 



Corchorus acutangulus, J,amk.~ F.B.I., i. p. 398 ; Fl. Indo-Chine, 

 i. p. 558. 



Chiengmai, among grass, 300 in., Kerr, 855. 

 Distr. Tropics. 



