268 COMPOSITE. Wyefhia. 



+4. .s-j. Glabrous, but scabridous and balsamic-viscid : leaves ovate, abruptly petioled, coriaceous. 

 "W. reticulata, GREENE. Habit of W. ovata, only puberulent-hispidulous without tomen- 

 tum, leafy up to the corymbosely disposed heads : cauliue leaves ovate or subcordate, short- 

 petioled (4 down to 2 inches long), 3-5-plinerved, and with veins and veinlets much reticu- 

 lated, shilling; those of flowering branches small, oblong, 3-uerved : heads hemispherical, 

 little over half-inch high: bracts of involucre oblong-linear, obtuse, short ; outer foliaceous 

 and loose, sometimes one or two enlarged : rays apparently few and rather small : akenes 

 compressed-quadrangular, glabrous (barely 3 lines long) : pappus an extremely short erose- 

 deuticulate crown; uo awn. Bull. Calif. Acad. i. 9. Banks of Sweetwater Creek, El 

 Dorado Co., California, jl/rs. Curran. 



++ -H- -K- Tomentose or woolly, but sometimes glabrate in age : leaves all petioled and becoming 



coriaceous, ample, even the cauline 4 to 7 inches long. 

 = Involucre hemispherical, of numerous broadly lanceolate bracts, not surpassing the disk: rays 



numerous, 20 to 24. 



W\ OVata, TORR. & GRAY. Cauescent with a soft not floccose tomentum, 2 or 3 feet high 

 from running rootstocks, commonly branching : leaves ovate, the cauliue subcordate and 

 with acute apex, somewhat triplinerved ; veinlets not much reticulated : pappus a chaffy, 

 several-toothed crown. Emory Rep. 143 (1848, wholly overlooked); Gray, Proc. Am. 

 Acad. vii. 357, & Bot. Calif. 1. c. California, on the western side of the Sierra Nevada. 



= = Involucre narrower, campanulate; the outer bracts larger than the inner and more or k-ss 

 surpassing the disk : ravs fewer: leaves at length firm-coriaceous and the veinlets conspicuously 

 reticulated. 



"W. mollis, GRAY. White with floccose wool when young, more or less glabrate in age, 

 1 to 3 feet high, bearing solitary or few heads : leaves oblong and ovate, with either rounded 

 or truncate or cuneate base : rays 10 to 15, over an inch long : akenes minutely pubescent at 

 summit : pappus a truncate chaffy crown, and 2 or in the ray 3 to 5 subulate awns. Proc. 

 Am. Acad. vi. 544, viii. 655, &c. Sierra Nevada, especially on the eastern side, from Sierra 

 Valley to Virginia City, Nevada, and westward to the Yosemite; first coll. by Anderson. 



"W. COriacea, GRAY. Sericeous-tomentose, stout, 1 to 3 feet high: leaves rigid, broadly 

 ovate or oval, obtuse or apiculate, somewhat triplinerved, even the upper cauline (5 to 7 

 inches long) seldom longer than their petiole : rays 5 to 9, hardly surpassing the involucre : 

 pappus a short obtusely 4-6-cleft crown. Proc. Am. Acad. xi. 77, & Bot. Calif, i. C16. 

 Sau Diego Co., California, ou the Mesa Grande, &c., Palmer, Parish. 



H- -M- ++ ++ Ilirsutely more or less pubescent, often somewhat balsamic-glutinous: leaves 

 elongated-lanceolate, tapering to both ends, or the upper and sessile cauline broader: bracts 

 of the involucre mostly foliaceous or herbaceous, lanceolate or broader, equalling the disk. 



"W". angUStifolia, NUTT. A span to 2 feet high, and the radical leaves about as long, 

 these occasionally denticulate or serrate, often undulate : involucre fully inch high, loose or 

 spreading : head solitary : rays mostly numerous, inch and a half long : pappus a short and 

 chaffy fimbriolate-cleft crown, and one or two or in the ray 3 or 4 elongated subulate awns, 

 one of them about the length of the akene. Gray, Proc. Am. Acad. viii. 655, & Bot. Calif. 

 1. c. W. angnstifolia & W. robusta, Nutt. 1. c. ; Torr. & Gray, Fl. ii. 299. Hdianthus 

 long! foil us, Hook. Fl. i. 312; Hook. & Am. Bot. Beech. 353. 77. Hookerianus, DC. Prodr. 

 Alurconia angustifolia, DC. Prodr. v. 537. Plains and hills, commonly in moist ground, 

 Washington Terr, to Monterey Bay, California. 



"W". Arizonica, GRAY. A foot high, bearing a single or few and smaller heads: leaves 

 oblong-lanceolate: involucre of fewer and more erect bracts: rays 8 to 12 : pappus a very 

 narrow crown, extended into 3 or 4 stout subulate teeth, or into one or two short awns. 

 Proc. Am. Acad. viii. 655 ; Rothrock in Wheeler Rep. vi. 161, t. 9; Meehan, Nat. Flowers, 

 ser. 2, ii. t. 37. Near streams and springs, S. Colorado to S. Utah and Arizona, Palmer, 

 Bishop, Siler, Rothrock, &c. 



-H- -H- -w- -H. -H- Hispidulous, very scabrous, narr jw-leaved : involucre more imbricated, squarrose. 



"W\ SCabra, HOOK. A foot or two high (root unknown), rigid : cauline leaves linear, thick, 

 4 to 6 inches long, half-inch wide, sessile, attenuate-acute, the few veins confluent into 

 lateral undulate nerves: involucre nearly hemispherical; its bracts imbricated in 3 or 4 

 series, all the outer with a coriaceous ovate-oblong appressed base, which is acuminate into 

 a longer subulate filiform spreading very hispid-scabrous appendage : rays several, half-inch 





