NAT. ORDER. 
Compositce. 
DIPLOPAPPUS IKCANUS. HOARY DIPLOPAPPUS. 
Class XIX. Syngenesia. Order II. Superflua. 
Gen. Char. Sepals, four to five. Petals, four to five. Stamens, 
generally indefinite. Anthers two-celled. Ovarium, sing-le, from 
four to ten carpels. Sti/le, one. Stigmas, as many as the carpels, 
Spe. Char. Fruit, dry, of several cells. Seeds, numerous. Embryo, 
erect. Flowers^ axillary. Leaves, simple, stipulate, toothed. 
The stems of this plant are very much branched, and, as well as 
the foliag-e, everywhere clothed with short, dense, glauceous pubes- 
cence, occasioning- a hoary appearance, which sug-g^ested the specific 
name ; the leaves are scattered, about an inch long-, linear-lanceolate, 
entire, patent or recurved, g-radually becoming- smaller on the ultimate 
branches, which are terminated by a larg-e sing-le Jiower ; 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 
open border till late in October. It is a native of California, where it 
was discovered by Mr. Douglass. 
Vol. IV.— 173. 
