246 JACK'S LETTERS TO WALLICH, 1819-1821. 



Micromelum hirsutum, Oliv., was sent to Wallich from 

 Penang, and distributed by him without a name in Wall. Cat. 

 Xo. 8516. 



Murray a exotica, Linn., type, and the variety panicu- 

 lata were both described by Jack, who held them specifically 

 distinct : he wrote as if he had found the type himself, but 

 not quite definitely about the variety, though familiar with 

 its usefulness to the kris-maker (Malay. Misc. i. Xo. 5, p. 31). 

 In his letters (p. 189) he refers to the species without adding 

 to what he published later. At a later date (letters p. 220) 

 he explains that Murraya sumatfana, Eoxb., is the same as 

 the variety paniculata. 



Clausena excavata, Burm., appears to be the plant which 

 Jack names in his letters (p. 162) as having been found in 

 Penang. It is common near the coast there. 



SIMARUBACEAE. 



Brucea sumatrana, Poxb., is mentioned in Jack's letters 

 as having been found at Bencoolen (p. 188). 



Eurycoma longifolia, Jack, was found in Singapore 

 and in Sumatra at Tapanuli and Bencoolen. It was described 

 in the Malay. Misc. ii. Xo. 7, p. 45. Jack placed it in Con- 

 naraceae. 



OCHNACEAE. 



Gomphia sumatrana, Jack, was described from Sumatra 

 no locality being named (Malay. Misc. i. Xo. 5, p. 29). 



Buthemis leucocarpa, Jack, a shrub common on the 

 sandy parts of the Singapore coast, was found by Jack and 

 described in the Malay. Misc. i. Xo. 5, p. 16. In his letters 

 to Wallich (pp. 179 and 20-1) he mentions it. And his recog- 

 nition of it at once as belonging to a new genus shows his great 

 perspicacity. 



Euthemis minor, Jack, was found along with the last 

 in Singapore, and described with it (Malay. Misc. i. Xo. 5, 

 p. 18). Though common on Pulau Battam, south of Singa- 

 pore, it has only once been found in recent years on Singapore 

 island. 



MELIACEAE. 



Melia excelsa, Jack, was obtained in Penang (letters 

 l). 165) and described in the Malay. Misc. i. Xo. 5, p. 12. 

 Wallich received specimens which became Xo. 1253 in his 

 Catalogue. Xo Melia answering the description has been 

 found recently ; and everything considered, it is impossible that 

 Jack's plant belonged to the genus. 



Sandoricum indicum, Cav., was got by Jack in Penang, 

 and distributed by Wallich as Xo. 1249 of his Catalogue. It 

 is the cultivated Sentol. 



Jour. Straits Branch 



