Artemisia norvegica subsp. saxatilis (Bess.) H. M. Hall & Clem.

Artemisia saxicola Rydb. Bull. Torrey Club 32: 128. 1905
Artemisia Chamissoniana saxatilis Besser; Hook. Fl. Bor. Am. 324. 1833. Not A. saxatilis Waldst.
& Kit. 1804. Artemisia Richardsoniana A. Gray, Am. Jour. Sci. II. 33: 239. 1862. Not A. Richardsoniana
Besser. 1836. Artemisia arclica A. Gray, Proc. Acad. Phila. 1863: 66. 1863. Not A. arclica Less. 1831. .4r/emiiia noroe^iio A. Gray, Syn. Fl. N. .'im. 1-: 371, mainly. 1884. Not A . Mocfegico Fries. 1817.
A low perennial, with a thick cespitose rootstock; stems 2-3 dm. high, very leafy towards the base, more or less villous; basal leaves distinctly petioled, villous on both sides, ovate or obovate in outline, twice pinnatifid, 5-12 cm. long; primary divisions oblanceolate in outline, the secondary linear, acute; upper leaves reduced, sessile, once pirmatifid; heads several or many, nodding, in a racemiform inflorescence; individual peduncles erect, 5-70 mm. long; involucre depressed-hemispheric, 4—5 mm. high, 7-10 mm. broad; bracts 12-18, in 3 series, villous, ovate, acute, with a narrowly lanceolate median portion and broad, black or darkbrown, erose margins; ray-flowers 8-10; corollas villous, 2.5 mm. long; disk-flowers 30-50; corollas light-brown, funnelform, villous, fully 3 mm. long; achenes 2 mm. long.
Type locality: Rocky Mountains [Canadian].
Distribution: Rocky Mountains, from Colorado to Alberta; Sierra Nevada, near Lake Tahoe (a form with the dark margins of the bracts less conspicuous).

Artemisia comata Rydberg, sp. nov
A low perennial, with a cespitose caudex or rootstock; stems 1-1.5 dm. high, decumbent at the base, sparingly villous below, densely so in the inflorescence, with long white hairs; lower leaves crowded, 2-5 cm. long, mostly twice pinnatifid into linear-lanceolate, acute divisions, sparingly long-hairy or in age glabrate; stem-leaves several, less divided, the upper simply pinnatifid into linear divisions; inflorescence dense, spike-like, somewhat interrupted below; individual peduncles 1-5 mm. long; heads nodding; involucre depressedhemispheric, 5 mm. high. 6-7 mm. broad; bracts about 12, glabrous, oblong-ovate, obtuse, dark greenish-brown, with very dark purplish-brown, almost black, erose, scarious margins; ray-flowers 12-15; corollas 2 mm. long, slightly glandular-granuliferous, 3-lobed; diskflowers 30-40; corallas deeply funnelform, nearly 3 mm. long, tinged with purple, slightly villous at the apex.
Tvpe collected on a gravel tundra at Collinson Point, arctic Alaska, July 17, 1914, Frits Johan'sen 122 (herb. Geol. Surv. Canada no. 89994).
Distribution: Arctic coast of Alaska, and Hcrschell Island.