of the Class Composita. 257 
Herba annua; niveo-lanata, facie Cryptostemmatis calendulacei. 
Radix longissima, descendens, fulvella, fibris plurimis, capil- ` 
laceis munita. Caules plures, procumbentes, simplices v. di- 
visi, palmares aut spithamai. Folia alterna, petiolata, ovata, 
mucronata, sinuato-dentata, nunc sublyrata, dentibus inequa- 
libus, mucronatis, distantibus, membranacea, maaimé fragilia, 
triplinervia, subtùs densius lanata, mollissima, pollicaria v. ses- 
quipollicaria, semunciam v. unciam latitudine equantia ; ra- 
dicalia longiùs petiolata.. Flores solitarii, longè pedunculati, 
pulcherrimi, odorati ; diametro sesqui-unciales. Pedunculi 
filiformes, uniflori, assurgentes, nunc ex ipsá radice ortum 
ducentes, stricti, palmares v. spithamai, lanuginosi, squamulá 
unicá setaceá muniti. Radius atropurpureus, viv semuncialis. 
_ Discus pallidior. Pappus cinereo-fulvellus. its 
Nomen a yarn seta, et yAawa involucrum. 
1. C.odorata.  . 
Leysera odorata. Herb. R. et P. — DEPTHS: 
. In Guayaquila Peruvianorum. - Tafalla. ©. = E - ai | 
Chetachlena is intimately allied to the preceding. genus ; ER 
structure of the florets and pappus proves this most satisfactorily ; 
and the elongated almost cirrhose points of the scales of the 
involucrum compared with the tendrils of the leaves of Mutisia, 
as well as the woolly habit of the plant, and the general resem- 
blance of the flower, appear to me to indicate considerable 
affinity to that genus. The leaves of this genus and of Mutisia 
lanata are extremely, fragile i in the: dued state. 
Song 
Recepti citi a scrobiculatum. Pun Jaa E Dbroditi tu- 
bulosi, 5-dentati ; radii foeminei, bilabiati. 
Involucrum campanulatum, polyphyllum, basi ations atu, 
212 2d 
