Stcjjha nomeria. COM POS IT.E. 413 



S. cichoriacea, Orat l c. I'erennial, 1 to 4 feet high, oomparativelj stont, when young 

 sometinios tonientulo^ie leaves resenililiug those of Chiocory, lanceolate, sparselv denticu- 

 late to runcinate-laciniate involucre half-inch higli : heads sessile along naked branches; 

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

 througli the southern portions of California, Dr. Horn, Parish, Pringle. 



§2 Stephaxojieria proper. IIe;uls 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. Gl. 



* Heads fully half-inch high, 10-20-flowered, somewhat corymbosely disposed, 

 4— Terminating leafy stems and branches: pnppiis sordid or grayish, of 10 or 12 rather long-plu- 

 mose bristles: akeiies smooth and even, witli slender ribs or angles : plants a span to a foot high 

 from perennial roots; involucre ob:!curel3' imbricated, 10-12-flowered. 



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

 runcinately pinnatifid , those of the flowering branchlets rather ntlmerous up to the hc:xd, 

 small, somewhat spinulose-lol)ed: pappus-bristles rather stout, naked (and often united in 

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

 Utah, Parrij. Borders of the Mohave Desert, S. E. California, Palmer, Prbujle. 



S. lactucina, Gray. Rather slender, with erect branches, leafy up to the nearly naked 

 peduncles ; leaves linear or narrowly lanceolate, entire or with a few salient teeth: pappus- 

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

 Woods of the Sierra Nevada, California, from Mariposa Co. to Shasta, Neicherri/, Brewer, 

 Bolander, &c. 



-)— -i— Heads naked-paniculate : pappus bright white : involucre merely calyculate. 

 S. Thlirberi, Gray. Simple-stemmed from a probably biennial root, a foot or two high : 

 leaves mainly at and near the ba.se, ruucinate-pinnatifid, inch or two long ; those of the naked 

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

 bracts ■ heads rather few : involucre narrow, 1 6-20-flowered . bristles of the jtappus 20 to CO, 

 soft and slender, very plumose to base. — PI. Thurb. in jNIem. Am. Acad. v. 325, & Bot. Mex. 

 Bound. 105. — New Mexico and adjacent Arizona, Thurher, Bujcloic, Iltnrij, Greene, &c. 

 S elAta, Nutt. PI. Gamb. 173, — said to be proliably perennial and blue-flowered, simple- 

 stemmed, 3 or 4 feet high, with very narrow linear leaves, aliout 10-flowered heads, involucre 

 (6-8-]ihyllous) and branches sprinkled with resinous dots, and plumose white jjappus, 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 G, occasionally 8 or 9), and with about the same number of iuvolucral 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, pauiculately or fastigiately branched from tliick and tortuous roofs or a lignescont 

 base, with striate and rush-lilce branches, small-leaved or nearly lealless above: pappus-bristles 

 not at all s f|uamellate-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-piniiatifid, commonly lanceolate ; upper linear or reduced to scales: pappus dull 

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

 S. rnncinata & .S". Iietemphi/lla, Nutt. Trans. Am. Phil. Soc. 1. c., at least in part and by char., 

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

 Exped. P.? panel flora, Torr. Ann. Lye. N. Y. ii. 210. — Plains, Nebraslca to Wyoming, 

 N. \V. 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 wliite, very plumose 

 down to base. — Torr. & Gray, 1. c. Prenantlies? tennifolia, Torr. 1. c. L/igodesima minor, 

 Hook. Fl. i. 205, t. 103 A. Jamesia pauciflorn, Nees in Neuwied Trav. 516 (16). — I'lains 

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



