COMPOSITAE ; (composite FAMILY) 535 , 



long, (less, than S mm. vide : heads in close and rounded or often rather open 

 cijistei;8; linvplucres 5-6 ^mm. high; bracts (pistillate) in abput 3 series, nearly 

 equal or somewhat imbrioatesd, the tips oval to linear, usually all obtuse, rose-- 

 coloF; to dull white; staminate. plant unknown. — From Colorado to Alberta 

 and the Pacific States, . i , 



Sa. Antennaria iiosea imbricata E. Nets, froc, U. S. Nat. Museum 23:, 707. , 

 1901. lieaves obovate or oblanceolate, ol^tusi^h, 20-25 mm. long, about 5 

 mm. wide, thin in texture, the indument appressed, whitish: involucral' bracts 

 (pistillate): broader, thanin the, specii^g, in about 4; series, imbricated, rogp- 

 color to' nearly white.i — Wyoming,and..Jiontanato California and Oregon. , 



,6. A-nteinnaria concinna E. J^els. Proc. U. S.' Nat. Museum 23: 705. 1901. 

 Caespitose, Twith ieafy offsets, or procumbent stolons, the latter at most 5 cm., 

 long; stems slender, leafy, 10-15 cm. high: leaves spatulate, with no distinc- 

 tion, pf blade or petiole, scarcely abruptly acute, about 1 cm. long and 2-4 mm. 

 broad, ^hite-tomentose on both surfapes,;, the cauline Unear-oblong to linear, 

 acute, shorter than the internodes:|heads 6-8 and glomerate, or often as many 

 as, 15, and the .cluster , then ra,ther open; involucres 6-7 mm. high; bracts 

 (pistillate) in abput'S series, al\ obtuse and abput 1 mm. wide, the herbaceous 

 portjPA livid green, the outer bpacts with a brown middle portion and their 

 tips> light brown, the tips of the others rose^color or yellowish-white: stami- 

 nate plant unknown. — Colorado and Wyoming to Washington. , 



;7. Anteinnaria corymbosa E., Nels. Bot. Gaz. 27: 212. March 1899.,, 

 Stem, blender; 121^25 cm. high; stolons flexible: leaves from almost linear tp 

 narrowly oblanceolate, rarely oblanceolate, acute, cuspidately mucronate, 

 25-35 mm. long, canescent or, lightly tomentose^' rarely green and glabrate: 

 heads more or less ipediceled and corymbosely disposed; involucres 4-5 mm. 

 high; bracts with a brownish spot at the middle, the tips dull white or milky , 

 white, the pistillate ones ovate tp oblong,, obtuse, the staminate , rotund^ to 

 oblong, obtuse or truncate. [A. nardina Greene, Pitt. 4: 82. Dec. 1899.] — 

 In the rnountains; Colorado to Montana. ,,, , i 



8. Antennaria parvifolia Nutt. Trans. Am. Phil. Soc. 7: 406. 1842. ' Slen- 

 der, 1-3 dmi highv stolons short, prpoumbent: leaves rhomboidally spatulate 

 and acute or rarely with the terminal dilated portion obovate and obtuse, 

 5-15 mm. long,, silvery-tomentose pn both surfaces or only canescent above: 

 heads in a rounded cluster or in an open corymb; involucres 5-6 mm. high; 

 tipsjofi the pistillate bracts usually iiarrow, obtuse or acute, dull white or 

 somftwhat. yellowish; thbs^ of the staminate bracts ^tund to oblong, obtuse; 

 or .truncate, dull white pr yellowish-white; (A., microphylla Rydb.BuUi, 

 Torr. Bot. Club 24: 303. 1897.)— Colorado to -Nevada and northward to 

 Alberta; ■<-•■. 



Sa. Antennaria. parvifolia bracteosa (Rydb.).A. Nels., About 3 dm, high: 

 leaves broadly spatulate, thin in, texture, canescent or tomentose, 15-20 mm. 

 long; the pauline about ,3 cm.; long: involupral bracts (pistillate), narrow, the 

 tips white, acutish to, acuminate. (A. bracteosa Rydb. Mem. N. Y. Bot. Gard. 

 1: 413., 1900,.,)— Colorado, to Montana. . , ; 



9. Antennaria arida E. Nels.,, Bot. Gaz. 27;, 210. 1900. Stems 7-15 cm, 

 high:,leaves small (8-12 mm. long) and inclined to be conduplioate, spatulate, ■ 

 acute; hoary-tomentose: involucres about 6 mm. high; the bracts (pistillate) 

 nearly all equal,, obtuse, pr somewhat imbricated and acutish, the tips dull 

 white, very rargly pinkish :,staRiinate plant unknown. — In the arid desert., 

 areas; Colorado, Wyoming, and Utah. , i 



9(i; Anteinnairia. arida wscidula E., Nels,. Proc. U. S, Nat. Museum .23: 710. 

 1901. , Size, habit, and leaves of the species, but glandular about thp.infloresT , 

 cenice,, stem,, and, .usually on the leayes below: middle, portions of outer bracts 

 (pistillate) greenish-yello.w or brown, the tips dirty white or pale brown. — 

 Wyoming and Colorado. 



96., Antennaria arida humilis (Rydb.) E. Nejs. 1. c. General aspect of the 

 species but taller, ,15-20 cm. high, rarely more: the leaves somewhat larger; 

 the involucral bracts mor« unequal. {A. foliacea humilis Rydb. .Mem. N. Y. 

 Bot. Gard. 1: 414. 1900.) — Montana and Wyoming. 



