268 COMPOSITiE. WyetUa. 



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

 W^. reticulata, Greene. Habit of W. ovata, only puberulent-hispidulous without tomen. 

 tuni, leaf v up to the corymbosely disposed heads : cauline leaves ovate or subcordate, short- 

 petioled (4 down to 2 inches long), 3-5-i>linerved, and with veins and veiulets much reticu- 

 lated, shining ; tho.se of flowering branches small, oblong, 3-nerved : lieads 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- 

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

 Dorado Co., California, Mrs. Curran. 

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



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

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

 numerous, 20 to 24. 

 "W. ovata, ToRR. & Gray. Canescent with a soft not floccose tomentum, 2 or 3 feet high 

 \Xi; from running rootstocks, commonly branching : leaves ovate, the cauline subcordate and 

 •': // with acute apex, somewhat triplinerved ; veiulets not much reticulated; pappus a chaffy, 

 H^ several-toothed crown. — Emory Kep. 143 (1848, wholly overlooked); Gray, Proc. Am. 



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

 = = Involucre narrower, campanulate; the outer bracts larger than the inner and more or less 

 surpassing the disk : rays fewer: leaves at length firm-coriaceous and the veiulets conspicuously 

 reticulated. 

 "W^. mollis, Gray. Wliite 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 iuch 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'. Sericeons-tomentose, stout, 1 to 3 feet high : leaves rigid, broadly 

 ovate or oval, obtuse or afiiculate, somewhat trij^linerved, 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. 616. — 

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



++++++++ Hirsutely more or less pubescent, often somewhat balsamic-glutinous: leaves 

 elongrited-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, aud the radical leaves about as long, 

 tliese occasionally denticulate or serrate, often undulate : iuvolucre fully inch liigh, loose or 

 spreading : head solitaiw : 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 subuhite awns, 

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

 1. c. W. amjiistifoUa & IF. robusia, Nutt. 1. c. ; Torr. & Gray, Fl. ii. 299. Hdianihus 

 longi/olius, Hook. Fl. i. 312 ; Hook. & Arn. Bot. Beech. 353. IT. Hookerianus, DC. Prodr. 

 Alarconia aiKjustifoUa, DC. Prodr. v. 537. — Plains and hills, commonly in moist ground, 

 Wasliingtou 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 aud more erect bracts: rays 8 to 12 : ])a])pus a very 

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

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

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

 Bishop, Siler, Eathrock, &c. 



++++++++ ++ Ilispidulous, very scabrous, narrow-leaved: invohicre move imbricated, squaiTOse. 

 "W. SCabra, Hook. A foot or two high (root unkiu)wn), rigid : cauline leaves linear, thick, 

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

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

 series, all the outer with a coriaceous ovate-olilong ajipres.sed base, which is acuminate into 

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



