Part 3, 1916] CARDUACEAE: ANTHEMIDEAE 273 
XI. Gnaphalodes. Perennial herbs, with rootstocks or rarely with a ligneous caudex. 
Leaves densely white-tomentose on both sides, from entire to pinnatifid. Heads numerous 
in dense leafy panicles, small, usually less than 40-flowered. Involucre campanulate to almost 
hemispheric, 3-5 mm. high. Corollas glandular-granuliferous, those of the ray-flowers cylindric 
or nearly so, 2-toothed; those of the disk-flowers trumpet-shaped and 5-toothed. Style of the 
former long-exserted, with linear filiform branches; that of the latter included or barely ex- 
serted, with short recurved branches, truncate and erose at the apex. 
75. Artemisia gnaphalodes Nutt. Gen. 2: 143. 1818. 
Artemisia rhizomata A. Nelson, Bull. Torrey Club 27: 34, in part. 1900. 
A perennial, with a cespitose rootstock; stem 3-10 dm. high, white-tomentose, striate; 
leaves numerous, the lower oblanceolate, 5—10 cm. long, serrate towards the apex, tomentose 
on both sides, but usually less densely so and darker above, the upper linear and entire; heads 
very numerous in leafy panicles; involucre campanulate, 3-4 mm. high, 2-3 mm. broad, densely 
tomentose; bracts 10-12, in 3-4 series, the outer ovate, half as long as the innermost; inner 
bracts elliptic or oval, obtuse; ray-flowers 6-8; corollas 1.5 mm. long; disk-flowers 10-15; 
corollas dark-brown or purplish, 2—2.5 mm. long; achenes 1 mm. long. 
TYPE LOCALITY: Dry savannas about Green Bay, Wisconsin. 
DIstRIBUTION: Michigan and Ontario to Saskatchewan, Colorado, and Missouri; introduced 
in New Hampshire and Massachusetts. 
ILLUSTRATIONS: Britt. & Brown, Ill. Fl. f. 4015; ed. 2. f. 4590. 
76. Artemisia pabularis (A. Nelson) Rydb. Bull. Torrey Club 
33) 1572) 1906: 
Artemisia rhizomata pabularis A. Nelson, Bull. Torrey Club 27: 34. 1900. 
A perennial, with a cespitose rootstock; stem slender, densely white-tomentose, 3-6 dm. 
high; leaves many, linear or lanceolate, 3-6 cm. long, 2-5 mm. wide, white-tomentose on 
both sides, the lower often dentate towards the apex; heads many in a leafy panicle; involucre 
campanulate, densely floccose, 3—3.5 mm. high and 2—2.5 mm. broad; bracts about 10, in 3-4 
series; outer bracts lance-ovate, acute, half as long as the innermost; inner bracts elliptic or 
ovate; ray-flowers 4-6; corollas 1.5 mm. long; disk-flowers 10-15; corollas light-brown, 2 mm. 
long; achenes about 1 mm. long. 
TYPE LOCALITY: Red Desert near Creston, Wyoming. 
DisTRIBUTION: South Dakota, Nebraska, Colorado, and Wyoming. 
77. Artemisia Purshiana Besser; Hook. Fl. Bor. Am. 1: 323. 1833. 
Artemisia Purshiana latifolia Besser; Hook. Fl. Bor. Am. 1: 323. 1833. 
Artemisia ludoviciana latifolia T. & G. Fl. N. Am. 2: 420. 1843. 
A perennial, with a rootstock; stem simple, 3-5 dm. high, white-tomentose, simple; leaves 
many, white-tomentose on both sides, entire or the lower coarsely toothed; lower leaves 
broadly oblanceolate or spatulate, the upper ovate-lanceolate, 3-6 cm. long; heads numerous 
in a dense leafy panicle; involucre broadly campanulate, 3-3.5 mm. high and about as broad, 
densely floccose; bracts about 10, in 3-4 series, the outer ovate, acute, half as long as the 
innermost; inner bracts elliptic-obtuse; ray-flowers 6~-8; corollas 1.5 mm. long; disk-flowers 
5-8; corollas light-brown or yellowish, 2 mm. long; achenes 1 mm. long. 
Tyre Locality: Plains of the Saskatchewan. 
DISTRIBUTION: Saskatchewan to British Columbia, California, and Nebraska. 
78. Artemisia pudica Rydb. Bull. Torrey Club 32: 130. 1905. 
A perennial, with a horizontal rootstock; stem 4-6 dm. high, simple up to the inflorescence, 
white floccose; leaves linear or narrowly lance-linear, 6-8 cm. long, 6-8 mm. wide, entire, 
white-floccose on both sides; heads numerous, nodding, peduncled on the many long erect 
racemiform branches of the lax panicle; involucre broadly campanulate, about 5 mm. high, 
4-5 mm. broad; bracts about 12, in 3 series, ovate, all acutish or the innermost obtusish, 
