162 



Aeschynanthus persimilis Craib {Tridwsporum per simile) .Ther^ 

 were two Labiatae of the genus Pogostemon, with long spikes. 

 One is P. glaher Benth., and the other P . fraternus Miq. A spe- 

 cies of this genus is an important perfume plant in India, and I 

 noticed that P. glaher was strongly scented. A parasitic plant 

 without chlorophyll was referred doubtfully to Chierostylis mac- 

 rantha Schl. The pines growing on the summit, with long leaves 

 in threes, belong to Piniis khasya Royle. I am not quite sure 

 that they had not been planted, as they were in the immediate 

 vicinity of the buildings used by the missionaries as a summer 

 resort. A large species of Commelina grows on the summit. The 

 flora certainly has rather strong Himalayan affinities, but Craib 

 remarks on the resemblances to the flora of Yunnan. There are 

 species in common with Mengtze, where Henry collected. The 

 Doi Sutep flora has been investigated by a number of botanists 

 and lists of the species are given by Professor W. G. Craib, of 

 the University of Aberdeen. The number of new species de- 

 scribed from the mountain is amazing. I have noted over 70, 

 and my list is not nearly complete. This include members of 

 such genera as Miissaenda (three) Passiflora, Gardenia, Cephae- 

 lis, Ipomoea, Loranthus, (two) ,Antides7na (two), Olea (two), Jas- 

 ninum, Riibia, Styrax, Ardisia, Thunbergia, Utricidaria (two), 

 Clerodendron, Elaeocarpus, Arisaema (three), Smilax, Zingiber 

 (three), Globba (five), Ophiopogon (two) etc, etc. There are 

 three species of palms on the mountain, belonging to Wallichia, 

 Calamus and Plectocomia. There is also a Pandanus. Richly rep- 

 resented families are Scitaminaceae, with 29 species; Liliaceae, 

 with 16 species; Commelinaceae, with 18 species, and Araceae, 

 also with 18. 



Thus Doi Sutep is a veritable paradise for botanists, and is, 

 I suppose the best locality in Siam which can be visited without 

 much trouble. With such a flora naturally goes a similarly va- 

 ried fauna, which, at least among the insects, will furnish innu- 

 merable novelties. The cryptogamic flora must also be very in- 

 teresting, and except for the vascular species, is hardly known. 



There is some variation in the spelling of Doi Sutep. Craib 

 formerly wrote Doi Sootep. Hosseus (Bot. Jahrb. 1908) has 

 Doi Sutap. R. le May in his excellent book on Siam, has Doi 

 Suthep. Doi means mountain. 



University of Colorado, 

 Boulder, Col. 



