49 
DIPLOPAPPUS INCANUS. 
(hoary diplopappus.) 
class. order. 
SYNGENESIA. SUPERFLUA. 
natural order. 
COMPOSITE. 
Generic Character. — Calyx imbricate; florets of the disk tubular, five-cleft ; florets of the ray tbree- 
cleft, ligulate, including both yellow and purple flowers. Pappus, or down, in a double row ; seeds 
obovate ; receptacle naked. 
Specific Character. — A hardy perennial, somewhat of a half shrubby habit, branching ; both stems and 
leaves covered with a short, soft, downiness. Leaves linear, entire, from half an inch to an inch 
long. Flowers terminal. Calyx scales numerous, linear, covered with glandular hairs. Rays 
purple, consisting of many florets. Disk bright yellow. 
This genus so nearly resembles Aster that its chief distinction appears to be 
the double row of down {pappus). It is a native of California, where it was dis- 
covered by Mr. David Douglas, and seeds of it sent to the London Horticultural 
Society's gardens^ in 1832. 
It will most likely bear the open air of this country as well as the asters^ and 
it is found to thrive well in open exposed situations, and continues flowering until 
the approach of winter. The plant whence our drawing was taken, had been 
sheltered in a frame during winter. Any common rich soil will answer for it, and 
it is propagated by division of the roots. 
VOL, II.»_NO, III 
