of the Class Composite. 219 



latiores et loiigiores, basibus caulis partem inferiorem imbvi- 

 catim tegentes. Flores te7-7ii, brevissime pediaiculati, magni, 

 semiglobosi. Involucrum villis loiigis articulatis copiose lana- 

 titm : foliolis ovato-lanceolatis, acuminatis, cequalibus, discum 

 paidd superantibus. Flosculi albi. 

 Ohs. Nomen ad pappi structuram refert, a tttlXos pluma, et ovpa 

 Cauda. 



1. P. daiicifolius. 



In Peruviae summis alpibus Cordilleras de los Andes Hispa- 

 nicfe dictis. Ruiz et Favon. % . 



This is another instance of the many analogies that might be 

 pointed out between the Compositce and Umbelliferce ; its leaves, 

 their dilated petioles clasping the stem ; the pubescence, and 

 indeed the whole habit, has much the air of an umbelliferous 

 plant ; and without the flowers the acutest botanist would not be 

 censurable for mistaking it for one of that family. The struc- 

 ture of its involucrum, the equality of its florets, and the rays of 

 the pappus arranged in a double series, with dilated imbricate 

 bases, abundantly distinguish it from Leuceria, to which it other- 

 wise comes nearest in affinity. 



c. Pappo paleaceo. 

 Triptilion. Ruiz et Favon. 



Rcceptaculum villosum. Flosculi 5. Involucrum polyphyllum, 



imbricatum. 

 Involucrum tubulosum, polyphyllum, imbricatum : squamis lan- 

 ceolatis, apice spinoso-mucronatis ; extimis squarrosis. Rc- 

 ceptaculum parvum, dens^ villosum. Flosculi 5, herma- 

 phroditi, bilabiati ; labio exteriore pataloideo, tridenticulato, 

 4-nervio (nervis arcuatis), radium perbreve patulum consti- 

 • tuenti; interiore membranaceo, bipartite, dupl6 breviore, 



revoluto : 



