317 
IPOMQSA denticulata. 
Van Rheede’s East Indian Ipomeea. 
—p—— 
PENTANDRIA MONOGYNIA. 
Nat. ord. Convotvui. Jussieu gen. 132. Div. I. 
ConvoLvuLacem. Brown prod. 481. Sect. I. 
IPOM@A. Supra vol. 1. fol. 9. 
I. denticulata, glabra, foliis hastatis lanceolatis linearibusve acutissimis, lobis 
posticis dentatis, pedunculis unifloris, calycibus subequalibus: foliolis 
oblongo-lanceolatis acuminatis. Brown prod. 485. 
Convolvulus Medium. Hort. Kew. 1. 208. ed. 2.1. 328; (vix tamen Linnea, 
ob foliola calycis sagittata nuncupata ut in CAMPANULA Medio). 
Tala-neli. Eheede mal. 11. 113. tab. 55. 
Planta perennis, suffruticosa, subtripedalis. Folia sessilia, sesquiuncialia 
. ultra, decrescentia, latiora viz tertiam unci@ lata, inter lobulos baseos inclu- 
dentia ramum. Pedunculi solitarii, subbreviores folio, graciles, erecti, uniflori 
varius bi-tri-flori (subvillosi?) Bractesxz 2, parvule, opposite, lanceolate 
pauld supra medium peduncult site. Flores straminei, ad plicas lutescentes, 
tubo intts sanguineo, limbo % uncie transverso: stigma virens: anther 
ochroleuce. 
That our plant is the Convotvutus Medium of the 
Hortus Kewensis, we have satisfied ourselves by the inspec- 
tion of the Banksian Herbarium, where the specimen is 
preserved by which the species intended in that work was 
determined. By the same means we know that it was also 
held by the learned compiler of the above work to be the Me- 
dium of Linnzeus, who instituted that species. _ It is plainly 
the plant of Van Rheede’s work, cited as a synonym by Lin- 
neeus. But still, as, Linnzeus has described the leaflets of 
the calyx of his Convotvutus Medium as “ arrow-headed 
like those of the Campanuta Medium ;” and as this is not 
the case in our present plant, we agree with Mr. Brown, that 
it can never be held to be of the same species without im- 
puting an improbable error to Linnzeus, and that it is safer 
to place it under a new specific name; at least for the present. 
The specimen of this rare vegetable was sent by Mr. 
Herbert from Spofforth, who tells us, that it had been 
raised from seed gathered on the banks of the river Pri in 
Penang, where it was found growing in the same situation as 
the Iromaia Quamoclit. The species was introduced by Dr. 
William Roxburgh in 1778; and is native of New Hol- 
