COMPOSITAE. 391 



Leaves much smaller and narrower. 



Tegules greenish brown. A. media. 



Tegules pink. 



Leaves obtuse, white tomentose. A. concinna. 



Leaves acutish, grayish tomentose. A. rosea. 



Antennaria lanata (Hook.) Greene. Densely and rather coarsely woolly; 

 stems erect, 10-15 cm. high, not at all stoloniferous; basal leaves spatulate- 

 lanceolate, petioled, 2-6 cm. long; cauline linear; inflorescence dense; involucre 

 4-6 mm. high, very woolly at base, the inner tegules with papery white tips. 



Common in rocky soil in the mountains at 2000-2500 m. altitude. 



Antennaria racemosa Hook. Perennial by stout leafy stolons; stems 

 slender, erect, 15-40 cm. high, glabrous or nearly so; basal leaves oval or ovate, 

 obtuse, green and glabrous or glabrate above, white- woolly beneath, 1-3 cm. 

 long, cuneate at base, petioled; cauline sessile, lanceolate, mostly acute, 1-3 

 cm. long; inflorescence glandular, racemose or somewhat paniculate; staminate 

 heads always racemose, subglobose, 4-6 mm. high, slender-peduncled, the 

 tegules brownish, obtuse; pappus with thickened tips; pistillate heads usually 

 corymbose, oblong, 6-8 mm. long, the tegules greenish, narrow-tipped; pappus 

 simple. 



Open woods in the mountains; rare west of the Cascade Mountains. 



Antennaria howellii Greene. Stems slender, 15-30 cm. high, grayish 

 woolly; stolons prostrate, leafy, 5-10 cm. long; basal leaves cuneate-oblanceo- 

 late, petioled, 1-nerved, acutish, 3-5 cm. long, becoming green above, per- 

 sistently white-tomentose beneath; heads in a close cyme; involucre campan- 

 ulate, 8 mm. high; tegules linear-lanceolate, the tips white and scarious; akenes 

 glandular. 



In open coniferous woods, common. 



Antennaria concolor Piper. Cespitose, the ligneous rootstocks and stolons 

 slender; stems slender, erect, 20-30 cm. high, sparsely tomentose; basal 

 leaves thin, spatulate, 2.5-3.5 cm. long, whitish, abruptly acuminate, concave 

 on the lateral margins, the greener upper side becoming nearly glabrous the 

 second season; cauline 7-9, linear or linear-lanceolate; inflorescence of 4-7 

 short-peduncled heads in a corymb; involucre 8-9 mm. high; tegules in about 

 3 ranks, mostly acute, greenish below, fuscous in the middle, the tips paler 

 or white. 



In open places in fir woods, near the suburb of Portland, Oregon, known as 

 Mount Scott. Only pistillate plants are known. 



Antennaria media Greene. Densely white tomentose; stems 4—6 cm. high; 

 stolons 1-3 cm. long; leaves spatulate-oblanceolate, acute, 12-15 mm. long; 

 heads in a dense cluster; involucre of the pistillate flowers 4 mm. high, the 

 tegule tips oblong, mostly obtuse, usually greenish brown; staminate involucre 

 similar. 



Common in the mountains at 2000-2500 m. altitude. 



Antennaria concinna E. Nelson. Densely white tomentose; stems leafy, 

 10-35 cm. high; stolons 3-5 cm. long; basal leaves spatulate, acute, white- 

 tomentose on both sides, about 10 mm. long; cauline linear-oblong to linear; 

 inflorescence dense or moderately open, of 6-15 heads; involucre 6-7 mm. high; 

 tegules obtuse, more or less rose-tinged. 



Olympic Mountains, Elmer, Piper, Lawrence. 



Antennaria rosea (D. C. Eaton) Greene. Densely white-tomentose through- 

 out; stems slender, 20-30 cm. high; stolons ascending; leaves narrowly ob- 

 lanceolate, acute, 15—20 mm. long; heads in rather close clusters; involucres 

 5-6 mm. high; pistillate tegules rose-colored, rarely white, obtuse, the stami- 

 nate plant unknown. 



In dry sandy or gravelly soil, in the mountains. 



