Stephanomeria. COilPOSIT^-E. 413 



S. Cichoriacea, Gray l r. Perennial, 1 to 4 feet liigh, comparath-ely stout, when young 

 sometimes tomentulose leaves resemljling those o£ C'hic-corv, lanceolate, s|,ar^iely dentica- 

 late to runcinate-laciuiate involucre half-inch high: heads pensile along naked Ijrarjches; 

 mature akeues short-linear, smooth, lightly and acutely 5-angled. — Rocky liills and canons 

 through the southern portions of California, l>r. Born, Parish, Pringle. 



§2. STEPHAXOMEniA proper. Heads 3-20-flowered : receptacle quite naked : 

 involucre slightly imbricated by having one or two intermediate bracts, espe- 

 cially in the earlier species, or only calyculate at base : pappus setose and plu- 

 mose throughout or only above the middle, the lower part of the bristle either 

 slender to base or sometimes paleaceous-dilated. — Gray, 1. c. 61. 



* Heads fully haif-inch high, 10-20-flowered, somewhat cori-mboseh- disposed, 

 -I- Terminating leafy sten\s and branches: pappus sordid or gravi^h, of 10 or 12 rather long-plu- 

 mose bri~tles- akenes smooth and even, with slender rdjs or angles ; plants a span to a foot high 

 from perennial roots; involucre obscurelj' imbricated, 10-12-flowered. 

 S. Parryi; Gray. Rather stout, widely branched from the base: leaves thickish, deeply 

 runcinately pinnatifid-, th(jse of the flowering branclilets rather numerous up to the head, 

 small, somewhat spinulose-lobed; pappus-bristles rather stout, naked (and often united in 

 twos or threes) at base.— Proc. Am. Acad. xix. 61, — Arid districts, near St George, S. 

 t'tah, Pan If. Borders of the Jlohave Desert, S. E. California, Palmer, Prinrjie. 

 o'S. laotucina, Gr.ay. Rather slender, with erect branches, leafy up to the nearly naked 

 peduncles . leaves linear or narrowly lanceolate, entire or with a few ssilient teeth : pappus- 

 bristles slender and plumose to the base. — Proc. Am. Acad, vi 552; Bot. Calif. I.e. — 

 Woods of the Sierra Xevada, California, from Jlariposa Co. to Shasta, Xeu-herrij, Brewer, 

 BoUinder, &c. 



H— -^r- Heads naked-paniculate; pappus bright white : involucre merely' calyculate. 



■ S. TllUrberi, Gray. Simple-stemmed from a probalJy biennial root, a foot or two high : 



leaves mainl}' at and near the base, runcinate-pinnatifld, inch or two long ; those of the naked 



stem and few corymbosely-paniculate branches reduced to linear-subulate or inconspicuous 



bracts • heads rather few : involucre narrow, 1 6-20-flowered . bristles of the pappus 20 to 20, 



soft and slender, very plumose to base. — PI. Thurb. in ilem. Am. Acad. v. 323, & Bot. Mex. 



Bound. 105. — New Jle.xico and adjacent Arizona, Thurher, Bigelow, Henrif, Grtme, &c. 



S elAta, Kutt. PI. Gamb. 17.3, — said to be probably perennial and blue-flowered, simpile- 



stemmed, 3 or 4 feet high, ■n'ith very narrow linear leaves, about lO-flowered heads, involucre 



(6-8-phyllous) and branches sprinkled with resinous dots, and plumose white pappus, coll. at 



Santa Barbara, California, — remains quite obscure. 



# * Heads quarter to third inch high, or sometimes higher, narrow, mostly 5-flowered (flowers 

 from 3 to 6, occasionally 8 or 9), and with about the same numbertif invohicral bracts: mature 

 akenes either smooth and even between the ribs, or rugose, or tubercular-thickened, sometimes 

 in the same species. — Jamesia-, Nees, 1. c. 



+- Perennials, paniculately or fastigiately branched from thick and tortuous roots or a lignescent 

 base, with striate and rush-like branches, small-leaved or nearly leafless above: pappuo-bristlBS 

 not at all squamellate-appendaged or dilated at base. 



■ S. runcinata, Nutt. Comparatively stout and rigid, a foot or two high, with spreading 



branches : heads mostly 4 or 5 lines high and scattered .along the branches : lower leaves 

 runcinate-pinnatifld, commonly lanceolate ; upper linear or reduced to scales: pappus dull 

 white, plumose only to near the base. — Torr. & Gray, Fl. ii. 472; Gray, PI. Pendl. 112. 

 S. runcinata & .S. heterophi/l!a, Nutt. Trans. Am. Phil. Sue. 1. c, at least in part and by char., 

 but poor specimens, seemingly confused with next. Prenanthes runcinata, James in Long 

 Exped. P.? paiicifhra, Torr. Ann. Lye. N". Y. ii. 210. — Plains, Nebraska to Wyoming, 

 N. W. Texas, Arizona, and S. California; first coll. by James. 

 'S. minor Nutt. 1. c. More slender and with ascending branches bearing usually terminal 

 'and smaller heads : cauline leaves all slender, often filiform : pappus white, very plumose 



down to base. Torr. & Gray, 1. c. Prenanthes? tenuifoha, Torr. 1. c. Lijgodesnua minor, 



Hook. Fl. i. 203, t. 103 A. Jamesia pancijiora, Nees in Neuwied Trav. 516 (16). — Plains 

 and mountains, from borders of Brit. America to those of Texas, Arizona, the Sierra Nevada 



