of the Class Composite . '21<J 



latiores et longiores, basibus caulis partem inferiorem imbri- 

 catim tegentes. Flores terni, brevissime pedunculati, magni, 

 semiglobosi. Involucrum villis longis articulatis.copiosc lana- 

 tum : foliolis ovato-lanccolatis, atuminaiis, aqualibus, discum 

 pan Id super an tibus. Flosculi albi. 

 Obs. Nomen ad pappi structuram refert, a tttiAo? pluma, et ovpa 

 cauda. 



1. P. daucifolius. 



In Peruviae summis alpibus Cordilleras de los Andes Ilispa- 

 nice dictis. Ruiz et Pavon. % . 



'This is another instance of the many analogies that might be 

 pointed out between the Com posit ce and Umbellifene ; 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 Pavon. 



Rcceptaculum villosum. Flosculi 5. Involucrum polyphyllum, 

 imbricatum. 



Involucrum tubulosum, polyphyllum, imbricatum : squamis lan- 

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

 ceptaculum parvum, dense villosum. Flosculi 5, herma- 

 phroditi, bilabiati ; labio exteriore pataloideo, tridenticulato, 

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

 tuent! ; interiore membranaceo, bipartito, dupld breviore, 



revoluto : 



