Chrysopsis. COMPOSITE. 123 



lines liigli ; its bracts commonly .strigulose-canescent, sometimes almost smooth, acute : 

 akeues oblong-obovate, villous: outer jjappus setulose-squamellate. — Amellus i:illosus, Pursh, 

 Fl. ii. 564. Diplopappus vil/osns & D. hispidus, Hook. Fl. ii. 22. C}irijsoj>sis viliosa, hispida, 

 foliosa, mollis, & sessiUJiora, Nutt. Trans. Am. Pliil. Soc. 1. c. ; Torr. & Gray, 1. c. ; also 

 C. canescens, Torr. & Gray, C. echioidcs, Bentli. Bot. Sulph. 25 & PI. Ilartw. 31G. — Prairies, 

 plains, and other open grounds, from Illinois and W. Alabama nortli to Saskatchewan, south 

 to Arizona, and west to Britisli Columbia and tiie coast of California ; iu various forms. 

 The typical eastern and northern plant is ratiier large, with cinereous and roughisii but not 

 canescent pubescence. Westward, extending to the southern part of California, it usually 

 becomes more canescent and villous as well as liirsute and hispid ; the size and fulness 

 of the lieads greatly varying. The more marked but quite unlimited forms are the fol- 

 lowing : — 



Var. hispida, Gray. Small and low, witli liirsute and hispid puliesccnce, not canes- 

 cent : heads particularly small : involucre not canescent, sometimes glabrous. — Proc. Acad. 

 Philad. 1863, 65. Jjip/oj)appus hispidiis, Hook. Fl. ii. 22. Clirysopsis hispida, DC. Prodr. 

 vii. 279 ; Nutt. 1. c. — Saskatchewan to Idaho, south to W. Texas, Nevada, and Arizona. 

 And forms between this and the next in California. 



Var. viscida. Low : leaves small, oblong to spatulate, green, sparingly if at all 

 hispid, not rough, but viscid-iiirtellous or with viscid points, and the involucre commonly 

 viscidulous. — Utah and Arizona, in tlie mountains, Jones, Greene, Pringle, Lemmon. 



Var, discoidea. Heads destitute of rays : involucre somewhat canescent : otherwise 

 nearly as var. hispida. — Canons, W. Montana, Wulson. 



Var, Stenophylla, Guay. Low and rough-hispid, rigid ; leaves sjjatulate-linear, 

 only aline or two wide: heads .small. — PI. Lindh. ii. 223. — Crevices of rocks, W. Texas, 

 Lindheimer, and S. W. Arkansas, IJir/elow. 



Var. canescens. Wholly canescent with short and appressed sericeous pubescence, 

 and with some spreading hispid bristles along the stem and yiargins of tlie narrow mostly 

 oblanceolate leaves : heads small : involucre also canescent : outer pappus less distinct. — 

 A/ili>puppus? (Leucopsis) canescens, DC. Prodr. v. 349. Chrijsopsis camsrens, Torr. & Gray, 

 Fl. ii. 256. — Texas, Berlattdier, Drummond, Wright, Lindheimer, &c. Stems a foot, some- 

 times " 2 to 5 feet," high ; very leafy and branching. 



Var. foliosa, Eaton. Canescent witli appressed sericeous pubescence, mostly soft 

 and destitute of hispid bristles; but stem often hirsute or villous: leaves short, oblong or 

 elliptical: heads small, rather numerous and clustered. — Bot. King Exp. 164. C. foliosa & 

 C. mollis, Nutt. 1. c. C. foliosa. Gray, PI. Wright, i. 99, & ii. 81, a small-leaved and some- 

 what liispid form, between this and var. hispida. — Rocky Mountains of Wyoming to Utah 

 and Arizona. 



Var. Rutteri, Rothrock. Most like the preceding, equally sericeous-canescent with 

 usually longer soft hairs : heads of double the size, fully half-inch high and wide, solitary or 

 few in a cluster, foliose-bracteate : rays 30 to 40, lialf-inch long. — Wheeler Rep. vi. 142. 

 C foliosa, var. sericeo-villosissima, &c.. Gray, PI. Wright, ii. 81. — S. Arizona, Wright, Rothrock, 

 Lemmon. — Seemingly tlie most distinct form of all; but connected with the eastern type by 

 on(! with slightly canescent leaves, Colorado, Greene. 



Var, sessiliflora. From liirsute and hispid or greenish to villous-caneseent : leaves 

 oblong or spatulate : lieads mostly large, solitary and foliose-bracteate at base : outer pappus 

 more conspicuous and squani(;llate. — C. (Phyllotheca) sessiliflora, Nutt. Trans. Am. Phil. Soc. 

 I.e. 317; Gray, Bot. Calif, i. 300, partly, especially var. Bolanderi. (J. [iolanderi. Gray, 

 Proc. Am. Acad. vi. 543, which is a well-developed form. — California, near the coast, from 

 Mendocino Co. to San Diego and Arizona. Disk-corollas in the bud tipped with some 

 scattered very slender hairs. 



Var. echioides. A bmnching form, with rather numerous and naked heads of small 

 size, and u.sually small leaves, commonh' cancscently hispid, sometimes greener : passes into 

 var./o//osa, var. hispida, &c. — C. echioides, Benth. Bot. Sulph. 25 (from Bodegas, a form 

 nearer the foregoing) & PL Hartw. 316, form witli small and scattered lieads. C. sessili- 

 flora, var. echioides. Gray, Bot. Calif, i. 309. — California, common from the Sacramento 

 southward to Arizona. 

 * * * Leaves not nervose, somewhat veiny: involucre hemispherical: akenes turf,nd-obovate and 



flattish, indistinctly 10-nerved, minutely pubescent: outer pappus paluolate and conspicuous; 



inner not very copious : root annual. 



