56 OSTERHOUT: NEW PLANTS FROM COLORADO 
“5. Agoseris frondifera sp. nov. 
An acaulescent perennial, the scape occasionally bearing a 
leaf, and usually two large leafy bracts at the base of the involucre, 
1-2 dm. high, glabrous except for the tomentum at the base of 
the involucre and some slight tomentum on the stem, mainly at 
the base; leaves narrowly oblanceolate, from 1 dm. to almost 2 
dm. long, glabrous but not glaucous, entire or with several narrow 
lobes 1-2 cm. long; involucral bracts 2 cm. high, in three series, 
the inner narrow and scarious-margined, the outer broad, ab- 
ruptly acuminate, longer and covering the inner, with a long 
tomentose pubescence especially on the margins; rays yellow; 
achenes striate for 8 mm., the beak 6 mm. long, the pappus white, 
10 mm. long. 
Agoseris frondtfera is related to A. montana Osterhout; the 
bracts are like that species, and occasionally A. montana bears a 
leaf on the scape. It isin every waya smaller plant than A. mon- 
tana, and the leaves are narrower. It was collected by Mr. Ira 
W. Clokey of Denver, as his label reads, at Camp Pitts, Boulder 
County, Colorado, in woods, altitude 9,600 ft., August 16, 1918, 
No. 3114. 
6. ONOPORDUM TAURICUM Willd. 
On July 22, 1918, I stopped for a few minutes at the Green- 
horn Post Office in Pueblo County, Colorado, and across the road 
from the post office, growing in abundance along a little ravine 
was what I took to be some European Cirsium. The heads of 
purple flowers made an attractive showing. Mr. J. Francis Mac- 
bride of the Gray Herbarium identified it as O. tauricum Willd. 
