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



being a Pentandria Trigynia vel Monogynia it will be of use to 

 you in Koxburgh, and you can introduce it either from Mai. Misc. 

 generally or as my communication direct to you. Since printing 

 it an idea has come into my bead whether this may not be 

 Linmeus's Gluta Benghas, erroneously for Renghas, which has 

 been discovered by no one since Linnaeus, see Lin. \lvax. Cycl. 

 The point can only be ascertained by a comparison with the speci- 

 men in the Linnaean Herbarium, and I have a great mind to send 

 a specimen to Sir J. E. Smith for the purpose. 



From the character of our Sago which must be admitted to 

 be a true one I am inclined to suspect that S. Ruffia is not a true 

 Sagus, 2s4 though its fruit is similarly imbricated. I observe in 

 the catalogue that Roxb. has two species of Sagus. but 1 have not 

 his description. Does lie give a full account or had he ever their 

 fructification.? 



I am at present at a country residence of Sir Stamford's in 

 tlie midst of forests and jungles, from which I am daily receiving 

 treasures. Materials are accumulating so fast upon me that I 

 should like to clear off arrears by getting out descriptions. When 

 a thing is printed, it is in a manner done with, and you go on 

 unincumbered. I have prepared a Monograph on East Insular 

 Melastonue containing 15 species, all new except two, one of which 

 is Roxburgh's? — M. decern fida, which is as good as new. I am 

 thinking of sending it home for the Linnean or some such periodi- 

 cal publication, 285 but I wish first to hear something from the 

 folks in England, particularly Brown. Has the Asiatic Society 

 adopted the plan of printing their papers as they come in; if they 

 have, I would not care to give them one. Do they deserve it? 



I am anxious to learn how Roxb. Vol. ii comes on, that I may 

 know what to send you for it. 



I am making an abstract of Rumphius, for the purpose of in- 

 quiring for his plants by their native names, and in the course 

 of it, have ascertained several of his hitherto unnamed species. 

 such as his 



Machilus meclius, iii. t. -11. = Laurus incrassata mihi; 



Arbor spicularum, iii. t. 106, quae Euphorbiacea : 287 



Clypearia rubra, iii. t. 112 : 2SS 



284. Sagus jRuffia is not a Sagus. See note No. 119 on p. 190. 



285. This paper on Melastomacea? appeared posthumously in the Trans- 

 actions of the Linnean Society, vol. xiv. (1823). 



286. Jack published his Laurus incrassata in the Malayan Miscellanies, 

 ii. (1822) No. 7, p. 33. It is referred to Dehaasia mkrocarpa, Blume, 

 with a query, on the authority of Wallich in his Catalogue under No. 2589. 



287. Described by Jack as Enchidium verticillatum in the Malayan 

 Miscellanies, ii. (1822) No. 7, p. 89, and now identified with Trigonostemon 

 indicus, Muell. Ay. 



288. Described by Jack in the Malayan Miscellanies, ii. (1822) No. 

 7, p. 78 as Inga Clypearia; and now called Pithecolobium Clypearia, Benth. 



Jour. Straits Branch 



