BOTANICAL INFORMATION. 635 
nature of the tubers of that plant; but Dr. Milligan is speak- 
ing of the roots of Hamodorum paniculatum and spicatum, and 
other individuals of that genus; for the natives do not use 
any roots of the species of Drosera for food: though, if they 
should prove useful as a dye, they may be obtained in any 
quantities. 
If health permits me, I hope to be travelling in the di- 
rection of King George's Sound, where I formerly made 
large collections, in next October, there to gather specimens 
of whatever plants may differ from what I now send. 
In arranging my specimens for the general collection, I 
strove to number them according to the Natural Orders ; but, 
not possessing any general list of plants, according to that 
System, I am afraid that many are misplaced ; especially as, 
though I have De Candolle's first volume, the book was un- 
fortunately at Toodjay, when I was making up my plants at 
Guildford. 
James DRUMMOND. 
FLORA or NORTH AMERICA ; containing abridged descrip- 
tions of all the known Indigenous and Naturalized Plants 
North of Mexico, arranged according to the Natural System. 
By Drs. Jonn Torrey and Asa Gray. Vol. Il. 
Parts I. and II. 
We noticed favourably, as the work eminently deserved, 
the previous parts of this most admirable and important pu 
lication, in the third volume of our Journal of Botany, p. 292. 
Parts I. and II. of the second volume have now appeared, 
including the Natural Orders, Caprifoliacee, Rubiacee, Va- 
lerianee, Dipsacee, and the greater part of the Composite. 
In Rubiacee two species of the new genus Celostylis are 
described, one from Florida, the other from Texas (No. 321 
of Mr. Drummond's collection from that country) The 
greater part of Part I., however, and the whole of Part II., 
340 closely printed pages, are occupied with the Composite 
(yet unfinished), and of which the immense mass of materials 
