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VII. Account of the Lansium and some other Genera of Malayan 

 Plants. By fVilliam Jack, M. D. Communicated by Henry 

 Thomas Colebrooke, Esq. F.R.S. and L.S. 



Read January 21, 1823. 



There are a variety of highly esteemed fruits, which may be 

 considered as peculiar to the Malayan Archipelago, or what has 

 been not unaptly denominated India aquosa, and are not to be 

 found beyond its limits. Many of these are already well known ; 

 but there are others which have not yet fallen under the obser- 

 vation of botanists, or are only to be found described in the 

 Hortus Amboinensis of Rumphius, which, though a work of won- 

 derful accuracy and research, stands in need of illustration with 

 reference to the progress that has been made in botanical science 

 since the period at which it was written. Among these the 

 Lanseh, the Tampooi, and the Choopa hold no undistinguished 

 place, and the following account of these plants will therefore 

 not be uninteresting. The first is already partially known from 

 Rumphius, and Mr. Marsden's History of Sumatra, but its true 

 place and family have hitherto remained doubtful. To these I 

 have subjoined descriptions of a few other genera from the same 

 interesting quarter, which appear to be new and to deserve 

 notice. 



LANSIUM. 



