t 317 



IPOMCEA denticulata. 

 Fim Rheede's East Indian Ipomcea. 



PENTANDRIA MONOOTNIA. 



Nat. ord. Convolvuli. Jassieu gen. 132. Dh. I. 



CoNvoLvuLACE^. Browtt prod, 481. Sect. I. 

 JPOMCEA. Supr^ vol. l.fol. 9. 



I. denticulata, glabra, folnshastatis lanceolatis llnearibusve acutissimis, lobia 



posticis dentatis, peduiiculis unifloris, calycibus subsqualibus: foliolis 



oblongo-lanceolatis acuminatis. Broum prod. 485. 

 Convolvulus Medium. Hort. Kew. 1. 208. ed, 2. 1. 328; fvix tamen Liimm, 



objbliola calycis sagtttata nuncupata ut in Campanula Medio). 

 Tala-neli. Rkeede mat. 11. 113. tab. 55. 



Planta perennis, su^ruttcosa, subtripedalis. Folia sessilia, tesguiunciatia 

 V. uUrOf decrescentia, laiiora vix tertiam undte iata^ inter lobulos bateos inclu- 

 dentia ramum. Pedunculi solitarii, subbrevioresjbtio, graciles, erecti, uniflori 

 rarius bi-tri-Jlori (svbmltosif) Bracteae 2, parvtdcB, opposite, lanceolate 

 paulo supra medium pedunculi sitee. Flores straminei, ad plicas lutescentes, 

 tubo intus sanguineo, limbo \ uncice transversa: stigma virens: antherse 

 ockroleuce. 



That our plant is the Convolvulus 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 Linnaeus, who instituted that species. It is plainly 

 the plant of Van Rheede's work, cited as a synonym by Lin- 

 nEeus. But still, as Linnaeus has described the leaflets of 

 the calyx of his Convolvulus Medium as " arrow-headed 

 lihe those of the Campanula 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 Linnaeus, 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 Ipom(Ea QuamocUt. The species was introduced by Dr. 

 William Roxburgh in 1778; and is native of New Hoi- 



