( 23 ) 
II. On Cyrtghdracee a new Natural Order of Planis. By 
William Jatk, M.D. Communicated by Aylmer Bourke Lam- 
bert, Esq. F.R.S. V.P.L.S. 
Read May 7, 1822. 
Ix examining some of the numerous Sumatran species of Cyr- 
tandra, Y was lately led to observe the great inaccuracy of 
Forster's description and figure of the fruit, which has been the 
cause of deception in regard to its natural affinities. His error 
consists in representing the septum as complete, with adnate pla- 
cente similar to what obtains in some genera belonging to Scro- 
phularine ; whereas, in reality, it is bipartite through the axis of 
the fruit, and the placent: are no other than the revolute lobes of 
the septa. This peculiar structure is more distinct in the nearly 
related genus of Didymocarpus (Mal. Misc. vol. i.), which has 
capsular fruit, and where the lobes of the contrary dissepiment 
so completely bipart the cells as to give it the appearance of 
being quadrilocular. It is obvious that this character is totally 
inconsistent with that of Scrophularine, and it does not accord 
exactly with any of the Jussiæan orders. Didymocarpus is re- 
lated to Bignoniaceæ through Incarvillea, but is not admissible 
into that family as defined by Mr. Brown in his Prod. Fl. Nov. 
Holl. I am therefore inclined to think that Cyrtandra, Didy- 
mocarpus, and another genus, which I shall here present under 
the name of Loxonia, which agree remarkably in general habit 
as well as in carpological structure, may properly form a small 
and 
