324 BOTANICAL DIFFERENCE. 



description of black tea as given above, but with 

 that of the green tea. Other examples of leaves, 

 however, as in Congou tea, do accord better with 

 the descriptions of botanists ; but this only shows 

 again, that the form and size of the leaf are in- 

 constant. 



Kcempfer, who saw the tea tree at Japan, simply 

 describes it ; thus considering it of one species. 



Thunberg also saw it at Japan, and he classed 

 it as one species, but two varieties, making the 

 difference to depend on the form and colour of the 

 leaf. 



A very recent traveller #i c Japan, Dr. Yon 

 Siebold, makes no less than four varieties depen- 

 dent also on the form of the leaf, but only one 

 species. * 



M. Guillemin also states in a letter addressed 

 to a friend of mine, in answer to some questions 

 put at my instance, that only one species is culti- 

 vated at the Brazils, which is the Thea Viridis. 

 The other species, the Thea Bohea, he considers as 

 a mere curiosity. " On ne cultive au Brazil qu'une 

 seule espece de The ; mais cette espece offre un grand 

 nombre de varietes quant a la forme des feuilles. 

 Cette espece est le Thea Viridis L. L'autre espece 

 botanique (Thea Bohea L.) est rnaintenant cultivee 

 en Europe. Cette plante est de pure curiosite. 

 Je ne sache pas qu'elle soit cultivee pour la pre- 



* See Appendix. 



