Aphpappm. COMPOSITE. 3|| 



1. A. equarrosuB, Hook. Sc Arn. Shrubby, niiinitply pubescent nnd some- 

 what glutinous : branclics very leafy : leaves rigid, oblong-obovate, obtuse, thickly 

 serrate with rigid pointed teeth, closely sessile or partly clasping, the midrib promi- 

 nent and the veins indistinct : heads several, si)icate or racemose-clustered, elon- 

 gated-obconical : the linear coriaceous scales of the involucre regularly imbricated in 

 many series, all with short and obtuse glandular herbaceous tips, which are usually 

 squarrose-spreading : rays none : disk-llowcrs numerous : appendages of the stylo 

 ovate-lanceolate : akenes glabrous : i)appus rather scanty, rigid. — Pyrrocoma grin- 

 delioides, DC. 



Probably near Monterey ; collected only by Doujjlas. Leaves an inch long. Heads three 

 quarters of an inch : outer scales of the involucre very short ; inner successively longer ; inner- 

 most equalling the disk. 



2. A. linearifolius, DC. Shrub one to four feet high, much branched, nearly 

 glabrous, glutinous from a resinous exudation ; the branches slender, terminated by 

 a solitary pedunculate large and showy head : leaves much crowded, narrowly 

 linear, mostly tapering to each end, fully an inch long, entire, more or less punc- 

 tate : scales of the hemispherical involucre about in two series, all nearly equalling 

 the disk, oblong-lancoolato, acute or acuminate, thin, with scarious margins and no 

 herbaceous tip: rays 12 to 14, oblong-lanceolate: disk-ilowcrs numerous: akenes 

 white silky-villous j pappus bright white, rather soft and deciduous. — Stenolus 

 linearifolius, Torr. & Gray, Fl. ii. 238. 



Rocks and dry ridges, Monte Diablo and the Contra Costa range, and in the Sierra Nevada 

 (Mono Pass, &c.), extending to S. Utah. — Head almost an inch in diameter ; the tright yellow 

 rays nearly an inch long. Appendages of the style rather broad. 



3. A. acaulis, Gray. Depressed : suffruticose caudex coespitose, bearing rosu- 

 late tufts of leaves : the flowering shoots simple and scape-like, or leafy only below, 

 terminated by a solitary head : leaves oblanceolate or narrowly spatulate, entire, 

 mucronate-acute, rigid, about 3-nerved, veiny, pale, scabrous with a very minute 

 harsh pubescence : scales of the hemispherical involucre rather few in 2 or 3 series, 

 ovate, acute, chartaceous with more or less scarious edges and a carinate midrib : 

 rays 9 to 12 : disk-flowers rather numerous : akenes silky-pubescent : pappus white, 

 rigid and rather scanty. — Proe. Am. Acad. vii. 353. Stenotus acaulis, Nutt. I.e. 

 Aplopappus Nevadensis, Kellogg, Proc. Calif. Acad. iii. 9, a large form. 



High Sierra Nevada, at Summit {linlandcr, h'rUoffcf, kc), and in similar stjitiona rnst to the 

 IJocky MoMiitniiifl. Flowering hIimiis or scapes 2 to 4 inchcH high. Heads u third of an inch 

 long ; rays half an inch. Lassen's Peak, Lcinmnn, 



4. A. apargioides, Gray. Herbaceous, tufted from a thick and firm rootstock, 

 glabrous except soue scattered slender and usually deciduous hairs : flowering stems 

 slender, a span high, bearing solitary or 2 to 3 peduncled heads : leaves lanceolate 

 or linear in outline, laciniately pinnatifid or spinulosely toothed, one-nerved and 

 minutely reticulate-veiny ; the radical ones 3 or 4 inches long, those of the flowering 

 stems few and smaller : scales of the somewhat hemisjiherical involucre closely 

 imbricated in about 3 series, linear-oblong, obtuse, nppressed, with herbaceous tips ; 

 the outer successively shorter: rays 20 to 24, ol)long : disk-flowers numerous: 

 akenes linear-oblong, glabrous : pappus of tawny slender bristles, rather deciduous. 

 — Proc. Am. Acad. vii. 354. 



Sierra Nevada, at Soda Springs, Tuolumne River, at 7,000 to 9,000 feet, Bolandcr. Heads 

 half an inch long, exclusive of the ray. 



5. A. paniCUlatUS, Gray, 1. c. Herbaceous, glabrous : stems nearly simple 

 from a thickish rootstock, rigid and mostly virgate, a span in a foot or more in height : 

 leaves thick and coriaceous, lanceolate, acute ; tlm nidical ones elongated, sometimes 

 spinnloso-serrate ; the canline small, closely sessile, entire, ciliolate : heads rather 

 numerous, single or 2 or 3 together in the axils of bract like leaves, forming a loose 

 yirgate spike or raceme, or sometimes pedunculate and panicled : scales of the 



