of the Class Composite. 257 



Herba annua, niveo-lanata, facie Cryptostemmatis calendulacei. 

 Radix longissi?na, descendens, fulvel/a, fibvis plurimis, capil- 

 laceis munita. Caules plures, procumbentes, simplices v. di- 

 visi, palmares aut spitkamcei. Folia alterna, petiolata, ovata, 

 mucronata, sinuato-dentata, nunc subhjrata, dentibus inaqua- 

 libus, mucronatis, distantibus, membranacea, maximi fragilia, 

 triplincrvia, subtiis densiiis lanata, mollisslma, pollicaria v. ses- 

 quipollicaria, semunciam v. unciam latitudine aquantia ; ra- 

 dicalia longius petiolata. Flores solitarii, longe pedunculati, 

 pirfcherrimi, odorati ; diametro sesqui-unciales. Pedunculi 

 fliformes, uniffori, assurgentes, nunc ex ipsd radice ortum 

 ducentes, stricti, palmares v. spitkamcei, lanuginosi, squamuld 

 unicd setaccd muniti. Radius atropurpureus, vix semuncialis. 

 Discus pallidior. Pappus cinereo-fulvellus. 



Nomen a x aiT V seta, et x^ a ^ a involucrum. 



1. C. odorata. 



Leysera odorata. Herb. R. et P. 



In Guayaquila Peruvianorum. Tafalla. Q. 



Chcetachlcena is intimately allied to the preceding genus ; the 

 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 in the dried state. 



EUTHHIXIA. 



Receptacidum scrobiculatum. Flosculi disci hermaphroditi, tu- 



bulosi, 5-dentati ; radii fceminei, bilabiati. 

 Involucrum campanulatum, polyphyllum, basi attenuatum : squa- 



2 l2 mis 



