360 Report 07i the Tea Plmit of Upper Assam. [Oct. 



Assam. Chhia. 



Batome(3e, , I 5 1 5 



Alismeae, 1 3 I 3 



Juncese, 1 5 2 5 



Philydrese, 0 2 



Smilacese, 3 3 



Dios<:oreace8e, 3 1 



Pandaneae, 1 0 



Aroidese, 5 9 



Acoracese, 2 I 



Roxburgliiaceee, 1 , . 1 



Typhaceae, I 3 1 3 



Fluviales, 3 1 



Lemnaceae, 1 o 



GramineEE, 37 15 18 



Cyperacese, 28 20 2 



Eriocauleas, 1 1 



Acrogens. 



Equisetaceee, 2 5 .......... 2 10 



Filices, 34 25 19 



Lycopodiaceee, 5 2 



Musci, 19 50 6 



Hepaticse, 13 20 « 3 10 



From the above list which contains 780 species for Assam, and 623 for 

 China, it is at once evident that the chief features of either flora are 

 tropical, and that the singularity of either consists in the existence of 

 forms in tolerable frequency, which reasoning on the latitude and small 

 elevation above the sea would never have been expected. The tropical 

 nature of the floras is particularly indicated by the great excess of 

 Cinchonacese over Stellatse, by the tropical nature of the Leguminosae, 

 and by the excess in favour of Asteraceee over Cichoraceae and Cynaraceae. 

 In forming an opinion relative to the value of the northern or elevation- 

 al forms appearing in both, considerable difficulties arise from the fact 

 that many of Loureiro's species are so imperfectly known as to be rank- 

 ed amongst the doubtful ; and secondly, from the vague nature of the 

 habitats hitherto given in mostgeneral floras hitherto published, in which 

 the habitat of Indian plants is indicated by India Orientalis, &c. the sta- 

 tion or locality being totally neglected. But in no work published is this 



