Fineleaf Hymenopappus

Hymenopappus nanus Rydberg, sp. nov
A scapose perennial with a thick cespitose woody caudex; stems 1 dm., rarely 1.5 dm. high, sparingly floccose, with only 1 or 2 small bract-like leaves; leaves basal, 3-4 cm. long, twice pinnatifid with narrowly linear divisions, sparingly tomentose; heads 1 or 2; involucre hemispheric, 6 mm. high, 10-12 mm. broad, tomentose at the base; bracts obovate, with the scarious margins yellowish or pinkish; corollas yellow; tube and throat each about 2 mm. long, the latter deeply campanulate, more or less inflated at the base, three times as long as the ovate lobes; achenes 4 mm. long, densely hirsute; squamellae oblong, equaling the corollatube.
Type collected on ridge above Cave Creek Post Office, Elko County, Nevada, August 20, 1908, A. A. Heller 9494 (herb. N. Y. Bot. Card.). Distribution : Mountains of Nevada.