ParT 3, 1916] CARDUACEAE : ANTHEMIDEAE 263 
3-5-dissected or the uppermost simple; inflorescence spike-like, leafy below, crowded above; 
heads short-peduncled or sessile, nodding; involucre hemispheric, densely villous, 6-7 mm. 
broad and nearly as high; bracts about 15, in 3 series, densely villous, the outer ovate, the 
inner oval, acute, with a lanceolate or elliptic median portion and brown scarious erose margins, 
acute; ray-flowers 7-9; corollas glandular-puberulent, 3 mm. long; disk-flowers 15-20; corollas 
yellow, glabrous or slightly pilose, 3.5 mm. long, funnelform; achenes 2 mm. long. 
Type LocaLity: St. Lawrence Bay, Bering Strait, eastern Siberia. 
DISTRIBUTION: Vicinity of Port Clarence, Alaska, and eastern Siberia. 
39. Artemisia comata Rydberg, sp. nov. 
A low perennial, with a cespitose caudex or rootstock; stems 1-1.5 dm. high, decum- 
bent 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 depressed- 
hemispheric, 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; 
tay-flowers 12-15; corollas 2 mm. long, slightly glandular-granuliferous, 3-lobed; disk- 
flowers 30-40; corallas deeply funnelform, nearly 3 mm. long, tinged with purple, slightly 
villous at the apex. 
Type collected on a gravel tundra at Collinson Point, arctic Alaska, July 17, 1914, Frits 
Johansen 122 (herb. Geol. Surv. Canada no. 89994). 
DISTRIBUTION: Arctic coast of Alaska, and Herschell Island. 
40. Artemisia saxicola Rydb. Bull. Torrey Club 32: 128. 1905. 
air ae lage eagaaae saxatilis Besser; Hook. Fl. Bor. Am. 324. 1833. Not A. saxatilis Waldst. 
it. = 
Artemisia Richardsoniana A. Gray, Am. Jour. Sci. II. 33: 239. 1862. Not A. Richardsoniana 
Besser. 1836. 
Artemisia arctica A. Gray, Proc. Acad. Phila. 1863: 66. 1863. Not A. arctica Less. 1831. 
Artemisia norvegica A. Gray, Syn. Fl. N. Am. 12: 371, mainly. 1884. Not A.mnorvegica 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 pinnatifid; 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 dark- 
brown, erose margins; ray-flowers 8-10; corollas villous, 2.5 mm. long; disk-flowers 30-50; 
corollas light-brown, funnelforim, villous, fully 3 mm. long; achenes 2 mm. long. 
Type Locatity: Rocky Mountains [Canadian]. 
Disrerution: Rocky Mountains, from Colorado to Alberta; Sierra Nevada, near Lake Tahoe 
(a form with the dark margins of the bracts less conspicuous). 
41. Artemisia arctica Less. Linnaea 6: 213. 1831. 
Artemisia Chamissoniana Besser; Hook. Fl. Am. Bor. 1: 324. 1833. 
Artemisia longepedunculata Rudolphi; Besser, Nouv. Mém. Soc. Nat. Mosc. 3: 77. 1834. 
Artemisia Chamissoniana unalaschensis Besser, Nouv. Mém. Soc. Nat. Mosc. 3: 78. 1834. 
Artemisia Chamissoniana kotzebuensis Besser, Nouv. Mém. Soc. Nat. Mose. 3:78. 1834. 
Artemisia montana Schlecht.; Ledeb. Fl. Ross. 2: 591, as synonym. 1846 
Artemisia norvegica Maxim. Bull. Acad. St.-Pétersb. 17: 435. 1872. 
Artemisia norvegica pacifica A. Gray, Syn. Fl. N. Am. 1?: 371. 1884. 
A perennial, with a thick cespitose rootstock; stems 2-5 dm. high, glabrate or sparingly 
villous; basal leaves distinctly petioled, twice or thrice pinnatifid, 5-20 cm. long, sparingly 
hairy or glabrous, broadly obovate in outline; primary divisions obovate in outline, the ulti- 
mate ones lance-linear, acute; upper leaves sessile and less divided; heads several or many, 
