292 Mr. D. Dox’s Descriptions of new Genera and Species 
» sesquilineam v. 2 lineas lata. Flores laxe diffuséque corym- 
bosi. Involucri squamis exterioribus lineari-subulatis, apice 
triquetro spinuloso-mucronatis, patulis, squarrosis ; intimis 
membranaceo-dilatatis, extùs pilosiusculis. Flosculi radio 
subrotundo-ovali, albo? Cetera ut in precedente. 
'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. Regt t. 853. 
In Chili. D. Place. ©. | 
Herba attics tenuissimé fibrosá, annua, diffuse ramosissima, 
lætè virens. Caules filiformes, valdé flexuosi, pubescentes. 
Folia sparsa, sessilia; inferiora subrotundo-cordata, am- 
plexicaulia ; superiora subrotunda v. rhombea; cartilagi- 
neo-membranacea, costà prominente venisque reticulatis 
ae oram Esnünbotihtu: hinc marginata, utrinque leviter 
=~ pubescentia, viridia, margine spinis longis setaceis, rectis, 
| di Varitul pies solitariis, geminis, aut fasciculatim 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- 
oc lanceolatis, spinoso-mucronatis, carinatis, ineequalibus. 
eceptaculum de villosum. Flosculi 5, hermaphro- 
diti, bilabiati; tu eo ; labio interiore bipartito, demüm 
uu PESTER IUE 
revoluto, luteo: laciniis. lanceolatis; acuminatis, primum 
conglutinatis ; 
