151 not as v. 



described by Dr. Wight as P. Wallichii that was 

 marked in Wal'ich's Catalogue as P. dalbergioidcs. 

 There are, however, several points of difference, but not 

 more than there are between Wight's description, and the 

 coloured drawing that he gives of this same species. In 

 the drawing, the leaflets are pointed wholly unlike our plant, 

 but in the letter-press description there is an exact corres- 

 pondence — in the drawing, the stamens are represented as 

 divided one way, in the description another, and both mQdes 

 of division, with some others, are seen here on the same 

 tree. This loose way of describing and figuring plants 

 makes it exceedingly difficult for an out-door botanist to 

 identify nearly allied species with book descriptions, made 

 perhaps originally from isolated dried specimens. 



The other species has leaflets which correspond both 

 to Roxburgh's description, and to Wight's .figure of P. 

 dalbergioidcs ; and though it differs in some other respects, 

 yet I think it is the same tree. 



Both these species produce an astringent gum, but which, 

 his been exported for gum kino, or whether a mixture 

 of both, which is most probable, I am notable to say ; 

 possibly neither. It may be that P. marsupium is found 

 in the Shan states, for it grows in Assam, where it would 

 doubtlessly he called pa-douk by a Burman. Be that as 

 it may, it is certain th.t these Provinces can furnish the 

 commercial world with a large quantity of gum kino. The 

 exudation of our pa-douk, one of the most abundant forest 

 trees, has been proved by experiment, to possess all the 

 properties of gum kino, while the product of the neigh- 

 boring provinces, whose only avenue to market is through 

 our territories, has been bought by the London druggist? 

 foi the gum kino of the Pharmacopoeia 

 Ptcrocarpus Wallichii. 



" dalbergioidcs. 



ogooooSi fti^Sj. ^'^Sj. ^^p" 



PILAS KINO. 



The exudation of the butea tree, or pulas kino, when 

 exported to England a few years ago was recognized " as 

 being the gummi rubrum aslringes" of the old druggists. 



