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



Oreophila. 

 Hypochceridis sp., Kunth. 



Pappus plumosus, sessilis. Involucrum imbricatum. 



Involucrum subrotundum, polyphyllum, imbricatum : squamis 

 lanceolatis, obtusis, membranaceis ; exterioribus apice la- 

 nuginosis. Keceptaculum paleatum : paleis lanceolatis, sca- 

 riosis, uninerviis, acumine longo, setaceo instructis. Flos- 

 culi lineari-ligulati : tubo tenui, ligula 5-dentata, 6-nervia, 

 duplo longiore. Anthera appendiculft ligulata, membra- 

 nacea coronatae, basi dentibus 2, lanceolatis, acuminatis, 

 membranaceis, aequalibus munitas. Stigmata filiformia, 

 recurvata, minutissime papillosa. Achenia oblonga, an- 

 cipiti-compressa, laevia. Pappus sessilis : racliis simplici 

 serie contiguis, filamentoso-plumosis, validis, inajqualibus, 

 basi crassiore persistentibus. 



Herba perennis, caspitosa, acaulis. Radix fusiformis, cortice 

 fusco obducta, digiti minoris crassitie. Folia 7Uimerosa, in 

 orbcm acta, humifusa, petiolata, linearia, tunc lanceolata, 

 obtusa, obtuse sinuato-dentata, coriacea, suprd. glabra, subtiis 

 sed pracipue ad costam mediam pitosa, 2 — 3-pollicaria. Flos 

 solitarius, sessilis, in foliorum medio latens, magnus, aureus. 

 Pappus cinereus. 



Herba locis alpinis incola, unde nomen ab opos, opeos, mons, et 

 (piXeco, amo, i. e. planta in montibus florescens. 



1.0. sessiliflora. 



Hypochceris sessiliflora. Kunth in H. et B. Nov. Gen. et Sp. 



PL iv. p. 2. 

 In Peruvian summis alpibus Cordilleras de los Andes Hispa- 



nice dictis. Ruiz et Pavon. % ■ 



The uniform sessile pappus has led me to regard this plant as 



constituting; 



