414 COMPOSITE. Stephanomeria. 



in California, and Washington Terr. Generally of more northern range than the foregoing, 

 not throughout distinguishable, perhaps has been rightly combined with it. 

 S. myrioclada, Eaton. Very slender stems and tortuous filiform branches very numerous 

 and fastigiately crowded in an erect tuft, a foot or two high, terminated by scattered small 

 heads : leaves linear and very small : involucre 2 and 3 lines long (of 4 or 5 as well as " 3 " 

 narrow bracts) and 3-5-flowered : akenes pluristriate at maturity : pappus white, its bristles 

 naked or merely hirsute below the middle or at the base. — Bot. King Exp. 198, t. 20. — Dry 

 rocky ridges, Thousand Spring and Goose Creek Valleys, Nevada, Watson. Hawthorne, 

 Nevada, M. E. Jones. 



■i— -h- Biennial, or probably perennial with long and slender subterranean shoots: pnppus bright 

 white; the bristles long-plumose to base, which is not at all paleaceous-dilated. 



S. "Wrightii, Gray, a foot or two high, slender, with single corymbosely paniculate stems : 

 cauline lca^'es mostly filiform and entire; those of tlie radical 'tuft linear to spatulate and 

 laciniate-pinnatifid : heads nearly half-inch long, 5-flowered, sparse, pedunculate, terminating 

 slender branches : akenes smooth on the salient ribs and narrow intervals, contracted at 

 summit: pappus long-plumose. — Proc. Am. Acad. xix. 60. S. runcinata, va,i., Gray, PI. 

 Wright, ii. 103, no. 1301. — W. Texas, in pebbly bed of Howard's Creek, Wright (without 

 the elongated root or shoot), and adjacent New Mexico, Bigelow. Apparently same from 

 N. Arizona, Rusby, seemingly perennial from long and filiform subterranean shoots. 

 -1— H— -4— Annual, strictly erect : pappus white; the brislles plumose to base, not paleaceous-dilated. 



S. virgata, Benth. Stem rigid, 1 to 4 feet high : heads 3 or 4 lines long, mostly subsessile 

 or short-peduncled, spicately or tliyrsoidly disposed along the naked upper part of \'irgate 

 stem or similar branches, but sometimes more loosely pnniculate on open branchlets: upper 

 leaves linear, small and entire ; lower oblong or spatulate, often sinuate or pinuatifid : 

 involucre 4-8-flowered, originally described as " 8-1 0-flowered " : akenes subclavate or ob- 

 long, rugose-tuberculate between the narrow ribs: pappus moderately plumose. — Bot. 

 Sulph. 32; Gray, ProC. Am. Acad. 1. c. S. paniculata, chiefly, Eaton, Bot. King Exp. 198, 

 t. 20, f. 5; Gray, Bot. Calif, i. 428. Possibly (from habitat not improhably) S. elula, Nutt. 

 PI. Gamb. 173; but flowers not blue, and no resinous dots on involucre and br:inchlets. — 

 California, common from San Bef nardino and San Diego Co., to Oregon, east to Nevada and 

 Utah. 



•I— H— -4— -)— Annual, strictly erect: pappus grayish or fuscous; its bristles short-plumose nearly 

 or quite to the more or less paleaceous or squamelliferous base. 



S. paniculata, Nctt. Stem erect from an annual root, a foot or two high, hearinn- numer- 

 ous narrow 3-5-flowered heads in an elongated narrow or more open panicle, or else more 

 strictly disposed on virgate branches : leaves linear or the lower lanceolate : akenes nearly 

 of the preceding: pappus decidedly different. — Trans. Am. Phil, Soc. vii. 428; Torr. & 

 Gray, Fl. ii. 473. — Plains of Idaho, and probably Northern Nevada, to E. Oregon, yuttall. 

 Hall, Cusick, &c. 



■i- -t- ■<—■>- -f— Annuals or biennials : bristles of the white or whitish pappus plumose above 

 but naked below the middle, at base more or less dilated or abruptly paleaceous, or else with 

 one or two adnate squamelte or bristly teeth at or near insertion: akenes tliick-ribbcd and 

 tuberculate-rugose at niatm-ity: stems paidculately and often divergently branched, bearing 

 scattered squainulose-peduncled heads. — § Ilrmipld'mm, Gray, Bot. Calif., in part onlv. 

 S. exigua, Ni:tt. A foot or two high, with slender branches and branchlets, but stem not 

 rarely robust (therefore ill named from depauperate specimens) : radical and lower cauline 

 leaves pinnatifid or bipinuatifid, those of the branches mainly reduced to short scales : invo- 

 lucre 3 to 5 lines long, with commonly 5 flowers, " 3 or 4 " when depauperate, rarely 6 or 8 

 in strong plants: bristles of the pappus 9 to 18, their more or less dilated .and paleaceous or 

 thickened b;iscs commonly a little connate in 4 or 5 phalanges and often 1-2-setulose on e.ach 

 side. — Trans. Am. Phil. Soc, ). c. 428 ; Torr. & Gray, Fl. ii. 473 (.attenuated form) ; Faton, 

 Bot. King Exp. 198, t. 20, f. 6, 7 ; Gray, Bot. Calif, i. 428. H<',m),tli;„m BlgclovH, Gray, 

 Bot. Mex. Bcrand. 105, a stout form, — Interior of Wyoming to the C])per Rio Grande on 

 the border of Texas, west to Nevada and E. California. 

 S. pentach^ta, Eaton, a S]ian or two or even 2 or 3 feet hiyh, like the preceding, or 

 divaric;itely branched from the l.a,se: pappus of 5 or sometimes 7 bristles, idl distinct to the 

 base, which is little dilated, plumose only above the luidille. — Bot. King Exp. 199, t. 20, 



