Antennaria. COMPOSITiE. 231 



the akcnes of the outer ones completely and firmly enclosed in the at length indurated base of 

 the subtending bract), has been found at Newcastle, California, by Mm. Curran, probably a 

 weed of grain-fields or a waif. 



F. RKPENS and F. TexAna, Scheele in Linn. xxii. 164, of Rcemer's collection in Texas, are 

 not identified ; probably are not of this genus. 



59. ANTENNARIA, Gccrtn., R. Br. (Bristles of male pappus likened 

 to the antennce of certain insects.) — Perennial, mostly low, canescently and 

 often floccosely woolly herbs (occasionally glabrate), of north temperate and 

 arctic zones, with whitish or purplish flowers ; the bracts of the involucre pearly 

 white or rose-color, or brownish, never yellow. — Ga^rtn. Fruct. ii. 410, t. 167 

 (excl. spec.) ; R. Br. in Linn. Trans, xii, 122; Benth. & Hook. Gen. ii. 301. 



§ 1. Bristles of the male pappus hardly at all thickened but minutely barbellu- 

 late near the apex : akenes (in the first species) oblong-linear, obscurely 2-3- 

 nerved, puberulent ; the short hairs with 2-lobed and at length biuncinate tip, 

 after the manner of Townsendia: bracts of the campanulate or somewhat turbi- 

 nate involucre brownish, not radiant. 



A. dimorpha, Tour. & Gray. Depressed, cespitose from a stout multicipital caudex, bear- 

 ing rcisulate clusters of spatulate leaves : heads solitary and subsessile at the crown, or raised 

 on a sparsely-leaved stem of an inch or less in height: male liead 4 lines high, with broad 

 and obtuse involucral bracts; female becoming half to three-fourths inch long, the inner 

 bracts narrow and long-attenuate into a Jiyaline acuminate tip : pappus of the fertile flowers 

 of long and fine smooth (not denticulate) bristles. — Fl. ii. 431 ; Eaton, Bot. King Exp. 186 

 (var. Nuttullii & var. macroccphala) ; Gray, Bot. Calif, i. 3-39. Gnaphcdium ( Omalotheai, Hetero- 

 phania) dimorpknm, Nutt. Trans. Am. Pliil. Soc. vii. 405. — Dry hills, from eastern base of 

 the Rocky Mountains, in Wyoming, &c., to the Sierra Nevada in California, and north to 

 Brit. Columbia. 



A. flagellaris, Gray. Simpler, from a small caudex or biennial root, bearing smaller and 

 fewer-flowered heads than the jjreceding and in the same manner, also copious naked and fili- 

 form stolons of a span or less in length, either as declined scapes bearing at their apex a 

 head rosulately involucrate by small leaves, or rooting and forming a rosulate offset : leaves 

 small, all narrowly linear: bracts of the female involucre less attenuate. — Proc. Am. Acad, 

 xvii. 212. A. dimorpha, Yav. flagellaris, Torr. & Gray in Wilkes Exped. xvii. 366. — Dry 

 rocks, Washington Territory and througliout E. Oregon, Pickering & Brackenridge, Cusick, 

 Howell. 



A. stenopliylla, Gray', 1. c. Stems erect from a sultterranean caudex, slender, 4 to 6 

 incbes liigli, without stolons, leafy, terminated by a capituliform glomerule of 2 to 4 heads : 

 leaves very narrowly linear or almost filiform, attenuate to both ends (tlie larger 3 inches 

 long), silvery-woolly: heads barely 3 lines long: involucral bracts in both sexes broadish 

 and obtuse, dark brown, or in the male the inner ones with white tips : akenes (two thirds of 

 a line long), minutely hirtellous-scabrous : female pappus scanty, only a line long; male pap- 

 pus nearly of the preceding. — A. alpina ? var. stenophglla. Gray in Bot. Wilkes Exped. I. c. 

 — Banks of the Spipen River, Washington Terr., Pickering & Brackenridge. High hills. 

 Union Co., E. Oregon, Cusick. 



§ 2. Bristles of the male pappus stouter, with thickish and clavate or scarious- 

 dilated tips. 



* Not siirculose bj' stolons, a span or more high: female heads narrow, cylindraccous or clavate: 

 akenes glandular. 



A. Geyeri, Gray. Branched from a lignescent base, commonly stout, thickly woolly : stems 

 very leafy to the top, bearing few or several somewhat spicately or cymosely disposed rather 

 large heads : leaves spatulate or oblanceolate, less tlian inch long : involucre very woolly at 

 base; of the female heads commonly 4 lines long, of the male shorter; the inner in both with 

 conspicuous rose-purple or sometimes ivory-white tips, which in the latter are obtuse, in the 



