Artemisia furcata subsp. furcata

Artemisia hyperborea Rydberg, sp. nov
? /IrJcHiuta orc/ica Besser; Hook. Fl. Bor. Am. 1: 323, in part. 1833. Not A . ai-rfico Less. 1831. A perennial, with a cespitose caudex or rootstock; stems 5-10 cm. high, finely whitetomentose, decumbent at the base; basal leaves numerous, 2-4 cm. long, finely silverytomentose, twice pinnatifid into appro.ximate linear divisions; primary divisions 5-7, the secondary ones mostly 3-5; stem-leaves smaller, less divided, the primary divisions often entire; heads mostly conglomerate in a short spike at the end of the stems and a few remote solitary ones in the upper axils; involucre depressed-hemispheric, about 5 mm. high and 6 mm. broad; bracts 10-12, broadly oval or obovate, white-tomentose on the back, with broad dark-brown erose scarious margins; ray-flowers 10 or more; corollas 2 mm. long, slightly glandular-granuliferous, 3or 4-lobed; style slightly exserted; branches oblong; disk-flowers 20-30; corollas yellow, deeply campanulate, slightly villous at the apex, 2.5 mm. long.
Tvpe collected on sand-dunes at Bernard Harbor, North West Territory, Canada, August 14, 1915, Frits Johansen 304 (herb. Geol. Surv. Canada no. 89997). Distribution: Arctic shores to Great Slave Lake, Canada.

Artemisia tacomensis Rydberg, sp. nov
A dwarf cespitose perennial, with a stout caudex; stems about 7 cm. high, silvery-canescent, almost leafless; basal leaves numerous, 1-1.5 cm. long, silvery-canescent, dissected into 3-5 divisions, which are either simple or again 3-cleft into short oblanceolate lobes; stem-leaves small, simple, linear; inflorescence spike-like; heads short-peduncled, nodding; involucre hemispheric, 6-7 mm. broad, 5 mm. high, densely white-villous; bracts about 15, elliptic, yellow, with brown, erose margins, acutish; receptacle naked; ray-flowers few; corollas cylindric, 2 mm. long, glandular-puberulent; disk-flowers about 30; corollas yellow, 3 mm. long, with a cylindric tube, campanulate throat, and 5-lobed pilose limb; achenes 1.5 mm. long.
Type collected on Mt. Rainier, Washington, August 27, 1896, J. B. Flelt (U. S. Nat. Herb. no. 353961).