v. 
of the Class Composite. 235 
cartilaginea terminate, basi bisetz: setis ineequalibus, pu- 
berulis. Stylus teres. Stigma clavatum, bilobum: lobis 
crassis, obtusis, conniventibus. Achenia lineari-oblonga, 
ancipiti-compressa, tuberculis minutis crystallizatis copiose 
ornata. Pappus setaceo-pilosus, subpersistens : radiis sim- 
plici ordine dispositis, denticulis exasperatis, apice attenu- 
atis, basi conferruminatis. 
Planta perennis, suffrutescens. Caules ea eadem radice plures, 
adscendentes, simplices, teretes, viminei, leves, rigidiusculi, 
fragiles, palmares v. spithamai, imá basi lanuginosi et lignosi. 
Folia linearia, superné paululim dilatata, subcuneata, spinu- 
loso-dentata, coriacea, rigida, sericeo-villosa, apice tricuspi- 
data, dente medio longiori, uncialia v. sesquiuncialia ; radi- 
calia plurima, erecta, infernó marginibus involutis, penè fili- 
formia, hinc prout petiolata ; caulina sparsa, breviora, deci- 
dua, ob basin tanquàm cum caule articulatam. Flos termi- 
nalis, solitarius, sessilis. Involucrum basi foliis nonnullis 
bracteatum : squamis eatüs villosis, apice nigro-coloratis, sub- 
inde sphacelatis.  Flosculi aurei, extis de em Tujipures- 
centes. Pappus flavo-cinereus. 
Nomen a zpoondvos apricus, quod huic plante apis convenit , prop- 
tereà in arenosis et campis apricis se delectare videtur. 
1. P. serrata. 
Cheetanthera serrata. Ruiz et Pavon l. c. p. 191. 
C. Chilensis. Dec. in Ann. Mus. 19. p. 10. t. 3. da. 8. ee 
Amen. Nat. 1. p.38. ! eee : 
. Perdicium. Chil ise. Willd. Sp. PL3.p p. 2118 zen 
In arenosis prope cohen Conceptionis et in Rere Brovincià 
Chilensium. Ruiz et Pavon. y . 
This genus differs essentially from the preceding by its imbri- 
cate involucrum, composed of many unequal, ac prati entire 
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