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XIII. On Bosisellin and certain Indian Terebinthacece. By Henrij 

 Thomas Co/cbrooke, Esq. F.Ii.S. and L.S. 



Read April 4 and 18, 1826. 



A DESCRIPTION of the tree which jdelds the Indian olibanum, 

 (a gum-resin apparently undistinguishable from Arabian frank- 

 incense, though possibly the production of a different plant,) 

 was inserted in the Asiatic Researches^ under the name of Bos- 

 wellia serrata : and another species of the same genus, BoswcUin 

 glabra, which likewise affords a resin burnt as incense in Hindu 

 tetnples, and employed with vegetable oil for the more useful 

 purpose of marine pitch, has been described by Roxburgh in 

 his third volume of India?! Plants'^. In neither instance was 

 the conformation of the seed particularly noticed. To supply 

 that omission and furnish die carpology of this interesting genus, 

 a full description of the fruit of the first-mentioned species is 

 here subjoined. It is chiefly derived from the same source ; 

 that is, from my lamented friend Dr. Roxburgh's observations 

 in aid of my own. 



As the dissection of the oerm shows the natural number of 

 each cell to be two, that part of the generic character, as ori- 

 ginally given, which specifies solitary seeds, may be modified ; 

 since they are single only by abortion. For this result is not to 

 be invariably expected in all situations ; though more than one 



* Vol. IX. p. 377. t Part I. t. 'i07. 



ripe 



