86 
IPOMCEA tuberculata. 
Lubercled Ipomeca. 
: PENTANDRIA MONOGYNIA. 
IPOM@A. Supra fol. 9. 
I. tuberculata, frutescens ; ramis tuberculatis; foliis quinato-digitatis, 
foliolis 2 extimis integris v. bi-tripartitis; pedunculis 3-4-foris, erectis ; 
calyce brevi, obtuso, crassiusculo; corolla hypocrateriformi. 
Convolvulus digitatus. Roxb. corom. MS. cum icone pictd inedita in - 
Museo Banksiano. 
- Suffrutex gracilis, volubilis ; caulis (aliquandd plures) teres; ramosus 3» 
rami tuberculis nunc passim innocué subspinescentibus scabrati. Folia glabra, 
2-3-uncialia, foliolis ovali-lanceolatis, obtusulis, mucronulatis ; extimis bre- 
vioribus seepe bi-trilobo-divisis, subpetiolatis v. sessilibus et cum proximis duo- 
bus obiter coherentibus: petiolus non multiim brevior folio, sulco 2 supino. 
exaratus, scepiis consitus tuberculis minutis vagis. Pedunculi, axillares, 
solitarit, trichotomo-triflort, crassiusculi, erecti, folio breviores, superné bi-. 
bracteolati ; pedicellis brevibus. Cal. tubo bis brevior, virens, crassus, sub- 
cordato-ovatus, foliola exteriora 3 cordata, convexa dorso, obtusa; interiora 
2-sublongiora, tenuiora, subacutiora. Cor. 2 uncias circiter profunda, laci-: 
nits hrevissimis rotundatis, de fauce intis violaceo-purpurascente per limbum 
sulphureo-pallescens. Stigma capitato-didymum. Sem. pauca, majusculas. 
pubescentia, externis angulis lanata. 
_ A speciesextremely near to the Convotvurus mucronatus, 
first recorded by Forster as native of the island of Tanna, 
in the South Sea; but afterwards, in his account of the 
vegetables collected by himself at the Cape Verd and other 
islands in the Atlantic (see Commentationes R. S. S. Gottin- 
gensis) as natural to St. Jago. The last place 1s that in- 
scribed on his sample, and on his drawing in the Banksian. 
Museum, where it is found under the title of acuminatus, 
which was changed upon publication, Samples, now pre- 
served in the above Museum, have been collected subse- 
quently im the same quarter by Sir George Staunton, and 
this is, we have no doubt, that whence Forster really brought 
the plant, not from Tanna. The species comes likewise near 
to the Irom@a pendula of Mr. Brown's Prodromus of the 
Flora of New Holland. But independently of difference 
in the general port of the plants, the present is distinct, 
in having a foliage without any traces of being ciliate; in 
having 3-4-flowered peduncles; and by a corolla that is 
