NAT. ORDER. 



Compositce. 



DIPLOPAPPUS mCANUS. HOAEY DIPLOPAPPUS. 



Class XIX. Syngenesia. Order II. Superflua. 



Gen. Char. Sepals, four to five. Pelals, four to five. Sf.amcns, 



generally indefinite. Anthers two-celled. Ovarium, sing-le, from 



four to ten carpels. Sdjle, one. Sdgmas, as many as the carpels. 

 Spc. Cfiar. Fruif, dry, of several cells. Seeds, numerous. EtnJmjn, 



erect. Floicers, axillary. Leaves, simple, stipulate, toothed. 



The stems of this plant are very much branched, and, as well as 

 the foliage, everywhere clothed with short, dense, glauccous pubes- 

 cence, occasioning a hoary appearance, which suggested the specific 

 name ; the leaves are scattered, about an inch long, linear-lanceolate 

 entire, patent or recurved, gradually becoming smaller on the ultimate 

 branches, which are terminated by a large siwgXe flower ; the involucre 

 is almost globose ; the scales numerous, linear, squarrose, slightly 

 glandular ; the ray is composed of many florets, and of a bright purple 

 color ; disk of a deep yellow. 



This genus is very nearly allied to the Aster, being only distin- 

 guished from it by the double rows of the pappus, whence its name. 

 It includes, however, plants with yellow as well as purple flowers, a 

 color never known in Aster. Few of the Asteroid family are more 

 worthy of cultivation than the present, bearing as it does large beauti- 

 ful flowers, of peculiar bright color, and continuing to blossom in the 

 ipen border till late in October. It is a native of California, where it 

 ft'as discovered by Mr. Douglass. 

 Vol. IV.— 173. 



