200 THE CAMPHOR-TREE OF BORNEO. 
adduced to confirm it. A cursory examination shows, however—l, that 
the ovules are not always solitary in this family, as M. Payer supposes ; 
2, that Mr. Brown did not distinguish the two genera in the manner 
asserted. 
In his character of Tremandree (Appendix to Flinders’ Voyage, p. 12) 
we find the phrase “ ovarium 2-loculare, loculis 1-3-spermis.” Among 
the few species examined, I found two (superposed) ovules in each cell 
of the ovary of Tetratheca juncea and T. thymifolia, and three (the two 
upper collateral) in T. afinis. It is singular that Steetz (Plante Preis- 
sianæ, vol. i. p. 212) should have seen only solitary ovules in these 
and in all the species he repeatedly examined ; since Endlicher (PI. 
Hugel. p. 7) had described the cells as biovulate in his 7. affinis and 
T. setigera. Mr. Brown's character of the Order, therefore, is not 
erroneous in this respect. 
As to the diagnosis of the two genera, those who are familiar with 
Mr. Brown's writings wili not be surprised to find that he has entirely 
refrained from mentioning their distinctive characters, either directly or 
indirectly. It was De Candolle, and not Mr. Brown, who assumed 
that Tefratheca was always tetramerous, and Tremandra pentamerous ; 
and it was Endlicher, in his ‘ Genera Plantarum,’ who assumed that 
the cells of the ovary were always biovulate in Tetratheca, he having 
previously found them so in two species which he had previously ex- 
amined. In T.ericæfolia, and some other species, the ovules are un- 
doubtedly solitary. 
Cambridge Univ., Massach. U.S.A., May, 1852. 
On the CAMPHOR-TREE of Borneo and Sumatra, DRYOBALANOPS CAM- 
PHORA, Colebr.; by Str W. J. Hooker, D.C.L., F.R.A. and L.S. 
(Tas. VII. and VIII.) 
" Borneo here expands her ample breast, 
By Nature's hand in woods of Camphire drest : 
The precious liquid weeping from the trees, 
Glows warm with health, the balsom of disease." 
Camoens’ Lusiad, transl, by Mickle. 
After the admirable account of the Dryobalanops, given by Dr. and 
Professor De Vriese in the ‘Nederlandsch Kruidkundig Archiff,’ vol. 
iii. p. l, (most kindly translated into English and condensed by the 
