270 



IPOMCEA chryseides. 



Mr. Ilerherfs Ipomcea. 



PENTANDRIA MO.\OGyX/.t. 



NaL ord* Convolvult. Jusslcit gert^ 132, ///r. /, Stylus unicus. 



CoNVOLVuLACE-T,. BroivH prod, tSl. Sai, L Germ. 1. 

 IPOMCEA, Supr^ voL I, /oh 9. 



I- chn/serdeSj folira oblongo-cordatis angulari-acuminafrs, nunc repando- 

 subdentatis rarO obsolete subtriiobt!); peduncalis superuis tri* (siobiscutn 

 abortu uni-J floris breviorlbus tblio, infernis subTfloris 3-i-pli> longiori- 

 bus folio: calyce lacvissimo, radiis multiplicibus atro-virentibus insi^jnito, 

 inucronato*retu^o^ rigidissimo. 

 Convolvulus. Herb. Banks^ Exemplar zn India Orientali 2 Kcentgio iectum, 

 Quoil-fa. Chiytensilms. Dom, Herbert in litt, 



Perennis^ suffruticosay gracili^y, JUiformi-ramosa^ verruculis minutissimis 

 tactui pins minus scabrata^ c^ierum nvdiusculdy striata^ Juscescens. Fol. 

 subsecunda, distaniiay glabra^ }\ unciiB longa^ ubilatiora latitudine i unci^^ 

 nervo medio alios horizojUali'ascendentes utrinque emittente^ petiolus duplo 

 Jere hrevior Jolio v. illi submqualiSj supra canaliculo subtilissime villoso^ 

 Pedunculi soliiarii, axillares^ teretes^ Jirmi, crassiores petiolist erecliusculit 

 Ci^muld frichotomd ^-l-Jlord ierminati^ s^p^ ut rami gramdoso-scabrati^ in 

 hortis nostratibus siBpius ob Jlorum 2 lateraliutn abortum uniflori^ pedicelljs 

 quinauies sexiesve brevioribus illisy aliqunndo Jlore altera axilla trichotomia 

 sessiiis, Cal. cajnpamdato'Connivens^ viridisy crassiusculus subcartilagineo^ 

 durust radiis crebris verticalibtis obscure viridtbus superne divergentibus noia- 

 iuSf Jbliolis erecUs late cuneatis reiuso-truncalis mucrone corniculifbrmiy 2? 

 summo margine subciliatts. Cor, lutea, h^pocrateri/brmtSt tubo et plids limbi 

 extHs rubro^/iilvescente lineisque pallidis notata; tubus altior calyce, inliis 

 in/erne pdosus: linnbus rotatus diametro subsemuncia/i, brevissime Sdobus^ 

 rotundatus absque omni nngulo lobis emarginatis, Anth, ovato-oblong(Bj iw 

 cnmbentes. Stig, granuloso-ghbosum, longius exsuperans stamina. 



It may certainly be imputed to the distinctions which 

 have been of late adhered to in deciding between Ipom(ka 

 and Convolvulus, that their adoption has been arbitrary and 

 empirical; and that generic marks have been assumed inde- 



Eendently of their controul over the habit of either group, 

 lut besides answering in point of convenience, we find 

 them in fact at least so far consequent, as that they are 

 seen t« determine the exclusion of the former genus from 

 within the boundaries of Europe, where the latter rauges 

 throughout by various species. 



Among the unnamed specimens of Convolvulus in the 

 Banksian Herbarium, we find two of the present species. 



