NOTICE OF BOTANICAL PUBLICATIONS. 175 
exclusively of Eastern origin, are treated a good deal in 
detail by Dr Wight; and no less than eighteen closely printed 
. pages are devoted to the Guttifere, an Order as remark- 
` able for the beauty of the trees composing it, as for the value 
of the timber in some (as Calophyllum), and the gum-resins 
produced by others. Xanthochymus pictorius, and Garcinia 
pictoria, of Roxburgh, both yield an imperfect kind of Gam- 
boge; but the former of so ordinary a quality, and possessing 
so little of the chemical elements of that substance, that Dr 
Wight had been led to doubt if it could really belong to that 
Order, and taking into consideration the quinary (not binary 
as in Guttifere) arrangement of the parts of the flower, he 
has removed the Genus to Hypericinee, and places it near 
Vismia. The plant however yielding the true Siam or 
Chinese Gamboge of commerce, is not known to botanists; 
but from a careful analysis of a gamboge of Ceylon, the pro- 
duce of the Hebradendron cambogioides of Graham, (as given by 
Dr Christison, in Hooker's Comp. to the Bot. Mag. vol. 11. p. 
193.tab, X X VII.) there can scarcely be a doubt but it belongs 
to some plant of this natural family. This valuable memoir 
on the Guttifere is terminated by a Synopsis of all the 
known Indian species, with copious observations, especially 
relating to the Genus Hebradendron, which shows what close 
attention our author has paid to this interesting group of 
Plants. This article closes the eighth and last part that has 
yet reached Europe of this very excellent work. 
A few words require to be said on the second of the pub- 
lications above alluded to of Dr Wight, namely, his ** Icones 
Indie Orientalis, or figures of Indian Plants." 
Scarcely had the first No. of this indefatigable and patriotic 
author's * Illustrations" appeared, than he became sensible 
that the number of plates which the plan of that work ad- 
mitted, was inadequate to the attainment of one of its prin- 
cipal objects, namely, the full elucidation of the distinctive 
Characters of the Natural Orders, as explained in the de- - 
~ Scriptive portion of the work. “For instance,” he observes, — 
“in the description of Capparidee, where several examples are 
