Arnica kodiakensis

Arnica kodiakensis Rydberg, sp. nov
Rootstock horizontal; stem about 3 dm. high, sparingly arachnoid-villous, striate, purpletinged; stem-leaves about 4 pairs, the lower ones subsessile, oblanceolate, denticulate, obtuse, 8-10 cm. long, sparingly pubescent with short crisp hairs, and slightly glandular-granuliferous, the upper ones ascending, linear-oblong, sessile, acutish; heads 3-5; peduncles 5-8 cm. long, sparingly crisp-villous and glandular-granuliferous; involucre hemispheric, 10-12 mm. high, 15-18 mm. broad, sparingly villous; bracts about 20, linear, purple-tinged, obtusish or acute; ray-flowers about 15, the ligules orange-yellow, 10-12 mm. long, 4-5 mm. wide; disk-corollas 7 mm. long; achenes 5 mm. long, sparingly hirsute; pappus-bristles yellowish-brown, 6 mm. long, short-plumose.
Type collected on Kodiak Island, Alaska, 1910, Ruth Mylroit 30 (herb. N. Y. Bot. Card.). Distribution: Kodiak Island.