Aiihpappus. COMPOSITE. oii- 



1. A. squarrosus, Hook. & Arn. Shrubby, minutely pubescent and some- 

 what giutinous : branches 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, spicate 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-llowers numerous : appendages of the style 

 ovate-lanceolate: akenes glabrous: pappus rather scanty, rigid. — Pyrrocoma (jrlit- 

 delioides, DC. 



Probably near Monterey ; collected only by Douglas. 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-lanceolate, acute or acuminate, thin, with scarious margms and no 

 herbaceous tip: rays 12 to 14, oblongdanceolate : disk-flowers numerous: akenes 

 white silky-villous ; pappus bright white, rather soft and deciduous. — Stenotus 

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



Eocks and diy 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 bright yellow 

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



3. A. acaulis, Gray. Depressed : suff'ruticose caudex caespitose, bearing rosu- 

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

 terminated by a solitary head : leaves oblanceolate or naiTowly spatidate, entire, 

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

 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. — Proc. Am. Acad. vii. 353. Stenotus acaulis, Xutt. 1. c. 

 Aj)lopappm Nevadensis, Kellogg, Proc. Calif. Acad. iii. 9, a large form. 



High Sierra Nevada, at Summit {Bolander, Kellogg, &c.), and in similar stations east to the 

 Pocky Mountains. Flowering stems or scapes 2 to 4 inches high. Heads a third of an inch 

 long : rays half an inch. Lassen's Peak, Lcmmon. 



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

 glabrous except some 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 hemispherical involucre closely 

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

 the outer successively shorter : rays 20 to 24, oblong : disk-flowers numerous : 

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

 — Proc. Am. Acad. vii. 354. 



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

 half an inch long, exclusive of the ray. 



5. A. paniculatus, Gray, 1. c. Herbaceous, glabrous : stems nearly simjde 

 from a thickisli rddtstdck, rigid and mostly virgate, a span to a foot or more in height : 

 leaves thick and coriaceous, lanceolate, acute ; the radical ones elongated, sometimes 

 spinidose-serrate ; the cauline small, closely .sessile, entire, ciliolate : heads rather 

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

 virgate spike or raceme, or sometimes peiluuculate and panicled : scales of the 



