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



nutans, albus. Involucrum quadruplici circiter serie poly- 

 phyllum, campanulatum : squamis lanceolatis, mucronulatis, 

 adpressis, margine apiceque sanguineo-coloratis ; intimis 

 radiantibus. Flosculi radii plurimi, foeminei, duplici ordine 

 digesti (serie interiore plurimum minore) ; extimis 20 circiter 

 ligulatis, obtuse tridenticulatis ; labio interiore minuto, obtuse 

 bidentato ; disci masculi, bilabiati : labiis revolutis ; exteriore 

 ligulato, obtuse tridenticulato ; interiore bipartite : segmen- 

 ts lanceolatis, attenuatis. Antherce basi longe biaristatae, 

 appendicula ligulata, obtusa coronatae. Stigma masculis 

 inclusum clavatum, bilobum ; radiis bifidum : laciniis semi- 

 cylinclricis, obtusis, recurvis, pruinosis. Achenia elliptica, 

 compressa, glabra : disco epigyno dilatato. Pappus capil- 

 laris, denticulis scaber, fulvellus. 



3. C. rotundifolia, foliis petiolatis subreniformibus, involucris 

 laevibus. 

 In staonatis altis frisidis Peruvire ad Pillao. Ruiz et Pa- 



von. ij. . 



Herba caespitosa, facie et magnitudine Tussilagini alpinee omnino 

 accedens. Radix praemorsa, fibris atro-fuscis, longis, crassis 

 instructa. Folia plurima, radicalia, petiolata, nunc sub- 

 rotunda basi integra, nunc cordata v. subreniformia, obtusa, 

 supra demum nuda, costa validiusculd, nervis oblique trans- 

 versis peragrata, hide reticulato-venosa, rugosa, subtiis lan& 

 nivea, siccitate fulva, copiose vestita, or& perangusta., re- 

 voluta, denticulisque plurimis, obtusis, nudis, rerlexo-ad- 

 pressis munita, unguicularia, v. nunc rarius pollicaria. Pe- 

 tioli filiformes, simplicissimi, lanati, sesqui- v. bi-pollicares. 

 Scopus altitudine maxime varians, nunc tripollicaris, nunc 

 dodrantalis, v. rarius fere pedalis. filiformis, solitarius, 

 unirlorus, gracilis, lana villosissim^ rufescente, squamis 



pluribus, 



