222 Mr, D. Don's Descriptions of new Genera and Species 



sesquilineam v. 2 lineas lata. Flores \axh difFusfeque corym- 

 bosi. Involucri squamis exterioribus lineari-subulatis, apice 

 triquetro spinuloso-mucronatis, patulis, squarrosis ; intijnis 

 membranaceo-dilatatis, extils pilosiusculis. FloscuU radio 

 subrotimdo-ovali, albo ? Ceetera ut in praecedente. 



This is intimately allied to the preceding species, of which it 

 may ultimately prove to be only a variety ; but I must leave 

 this question undecided until further observations shall deter- 

 mine whether the characters by which they are here separated, 

 are permanent. 



** Pappi radiis apice ciliatis. 



3. T. cordifolium, foliis subrotundo-cordatis margine setaceo- 

 spinosis, floribus subternis. 

 Triptilion cordifolium. Lag. in Bot. Reg. t. 853. 

 In Chili. D. Place. Q. 



Herba radice tenuissime fibres^, annu^, diffusfe ramosissima, 

 lastb virens. Caules filiformes, valde flexuosi, pubescentes. 

 Folia sparsa, sessilia; inferiora subrotundo-cordata, am- 

 plexicaulia ; superior a subrotunda v. rhombea ; cartilagi- 

 neo-membranacea, cost^ prominente venisque reticulatis 

 ad Oram confluentibus, hinc marginata, utrinque leviter 

 pubescentia, viridia, margine spinis longis setaceis, rectis, 

 divaricato-patulis, solitariis, geminis, aut fasciculatira ter- 

 natis armata, ad apicem semper trinis approximatis, et 

 tunc tricuspidata. Flores numerosi, dispersi, in apice ra- 

 mulorum subsolitarii v. terni, sessiles. Involucrum virens, 

 pubescens, polyphyllum, imbricatum, squarrosum : squa- 

 mis lanceolatis, spinoso-mucronatis, carinatis, inaequalibus. 

 Receptaculum punctum villosum. FloscuU 5, hermaphro- 

 diti, bilabiati, tubo luteo ; labio iriterior-e bipartito, demiim 

 revoluto, luteo : laciniis lanceolatis, acuminatis, primum 



conglutinatis ; 



