Stcphanomcria. COMPOSIT.E. 413 



S. cichoriacea, Okay ) c. Perennial, 1 to 4 feet higli, comparatively stout, when yonng 

 sometimes tomentulose leaves resenililing those of C'hiccory, lanceolate, s])arsely denticu- 

 late to runcinate-laciniate involucre half-inch high : lieads sessile along naked l)ranclies : 

 niatui-e akeues siiort-linear, smooth, lightly and acutely 5-augled. — Rocky hills and canons 

 througli the southern portions of California, Di. IJorn, Parish, Pringle. 



§ 2. Stephanomeria proper. Ileatls 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. — (iniy, 1. c. Gl. 



* Heads fully half-inch high, 10-20-flowercd, somewhat corynibosely disposed, 

 -t— Terminating leafy stems and branches: pappus sordid or grayish, of 10 or 12 rather Inng-plu- 

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

 from perennial roots; involucre obscure!}' imbricated, 10-12-flowered. 



S. Parryi, Gray. Rather stout, widely liranched from the base : loaves thickish, deeply 

 runcinately pinnatifid ; those of the flowering branclilcts rather numerous up to the head, 

 small, somewhat spinulose-lobed . pappus-bristles ratlicr stout, naked (and often united in 

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

 Utah, Panij. Borders of the Mohave Desert, S. E. California, Palmer, Pringle. 



S. lactucina, Gray. Rather slender, with erect hi-anches, 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. 5,52; Bot. Calif. I.e. — 

 "Woods of the Sierra Nevada, Califoruia, from Mariposa Co. to Shasta, Neichcrrij, Breirer, 

 Bolander, &c. 



-1— -^r- Heads naked-paniculate : pappus bright white : involucre merely calyculate. 

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

 leaves mainly at and near the base, runcinate-piunatifid, inch or two long ; those of tlie naked 

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

 bracts • heads rather few : involucre narrow, 16-20-flowored . bristles of the pappus 20 to ;30, 

 soft and slender, very plumose to base. — PI. Thurb. in Mem. Am. Acad. v. 32.5, & Bot. Me.\. 

 Bound. 105. — New Mexico and adjacent Arizona, Thurber, Bujelow, Henrn, Greene, &c. 

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

 stemmed, 3 or 4 feet high, with very narrow linear leaves, about 10-flowercd 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 G, occasionally 8 or 9). and with aliout the same number of iiivolucral 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 lignescont 

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

 not at all pf|uanudlate-appendaged or dilated at base. 



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

 branches : he;ids mostly 4 or 5 lines high and scattered along the brandies ; lower leaves 

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

 white, plumo.se only to near the base. — Torr. & Gray, Fl. ii. 472; Gray, PI. Fendl. 112. 

 S. rnncinata & S. Iieierophi/lla, Nutt. Trans. Am. Phil. Soc. 1. c, at least in part and by ch:ir., 

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

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

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



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

 and smaller heads : cauline leaves all slender, often filiform ; p:ippus white, very plumose 

 down to base. — Torr. & Gray, 1. c. Prenanthes? tcnuifoUa, Torr. 1. c. Li/godcs7iHa minor. 

 Hook. Fl. i. 205, t. 103 A. Jnniexia pancijlura, Nees in Neuwied Trav. 516 (16). — Plains 

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



