246 Composit@—Cosmidiume. 
3-lobed leaves and Zinnia-like scarlet flowers produced in 
Autumn. And Harpalium rigitwm is another allied plant, 
a native of North America, and quite hardy. It rises about 
a yard high, and is furnished with opposite oval leaves and 
yellow flower-heads about half the size of the Sunflower, but 
much more numerous and of longer duration. 
20, COSMIDIUM. 
A small group of annuals of close affinity with Coredpsis ; 
but the achenes are long and narrow, and covered with minute 
tubercles, and closely embraced by the bracteoles of the recep- 
tacle, which fall away with them. The pappus cunsists of two 
short stout bristles. Natives of North America. 
1. C. Burridgeanum.— About 18 inches high. Leaves 
finely cut. Capitules on long naked slender peduncles, about 
2 inches in diameter. Ray-florets 
about eight. In the original variety 
the disk is purple, and the ray bright 
orange with a purple spot at the base 
of each floret; but under cultivation 
it has varied. One of the prettiest 
variations, called atropurpireum, has 
the heads of a crimson-purple bordered 
with orange. 
C. jilifolium has the rays entirely 
yellow with a brown disk ; and C. E'ny- 
elivdnnit is a dwarf species with 
wholly yellow flowers. 
21. COSMOS (Césmea). 
Annuals or perennials with pinnate 
leaves and solitary flower-heads. Re- 
ceptacle furnished with linear acute 
coloured bracteoles, equalling or ex- 
ceeding the florets. Achenes angular, 
largest in the middle, crowned with 
three or four rigid bristles. Kéopos 
signifies beautiful or perfect. 
Fig. 134. Cosmos bipinnatus. 1. C. bipinndtus (fig. 1384)—An 
(nat. size.) elegant annual about 2 feet high. 
Flowers rose or purple with a yellow eye, appearing late in 
Summer. Mexico. 
