132 COMPOSITE. Aplopappus. 



A. Brandegei. A span high from a tufted caudex, cinereous-pubescent or puberulent, and 

 the involucre lanuginous-tonientose ; radical leaves obovate or spatulate or roundish (half- 

 inch long), contracted into a slender petiole; caiiline few and sparse, small (quarter-inch 

 long), oblong or lanceolate : head one-third inch high and broad : bracts of involucre loose, 

 lanceolate, nearlj' equal: young akenes hirsute-pubescent: pappus rather scanty: style- 

 appendages triangular-subulate. — Mountains of Washington Terr., in the Yakima district, 

 Brandegee. — Aspect of an alpine Erigeron ; but rays (leep yellow and style-appendages 

 acute. 



H— -t~~ Depressed-cespitose from a multicipital lignescent caudex, glabrous or puberulent-sca- 

 brous: leaves rigid and persistent, crowded on the crowns of the caudex or on short shoots, and 

 a few on the lower part of the scapiform flowering stems: rays 6 to 15, rather broad: style- 

 appendages subulate: akenes canescently villous. — Stenotus, Nutt. 



~ A. acaulis, Gray. Leaves from spatulate (and inch or less long) to oblanceolate or linear 

 (and 2 or .3 inches long), mucronate, more or less .3-nerved and the broader ones veiny, com- 

 monly scabrous : scapiform flowering stems an inch to a span high, mostly monocephalous : 

 bracts of the involucre from ovate to ovate-lanceolate, mucronately acute or acuminate, desti- 

 tute of greenish tips; the outer a little shorter than the inner. — Proc. Am. Acad. vii. 353; 

 Eaton, Bot. King Exp. 161. Chrijsopsis acaulis, Nutt. in Jour. Acad. Philad. vii. 33, t. 3. 

 Sfeiiutus acaulis, Nutt. in Trans. Am. Phil. Soc. 1. c. 334; Torr. & Gray, 1. c. — Dry rocks 

 on the mountains (at 6,000 to 8,000 feet, and extending to the alpine region), from Sas- 

 katchewan and N. Wyoming to E. Oregon, and south to Utah and the Sierra Nevada, Cali- 

 fornia. Passes into 



Var. glabratus, Eaton, 1. c. Glabrous and smooth or almost so : flowering stems 

 disposed to be leafy above and to branch, so bearing 2 or 3 heads. — Chrysopsis crespitosa, 

 Nutt. in Jour. Acad. Philad. 1. c. Stenotus ccsspitosus, Nutt. in Trans. Am. Phil. Soc. I. c. ; 

 Torr. & Gray, 1. c. — Wyoming to Nevada and N. Arizona. 

 A. armerioides, Gray. Smooth and glabrous : flowering stems naked above (for 1 to 3 

 inches), sometimes nearly scapiform : bracts of the campanulate involucre broadly oval, 

 rounded-obtuse or refuse, muticous, of about three lengths ; the outermost much shorter, 

 most of them greenish at apex. — Stenotus armerioides, Nutt. 1. c; Torr. & Gray, 1. ^. — 

 Rocks on mountains, from Wyoming to New Mexico and S. Utah; first coll. by Nuttall. 

 Too near the preceding. 



A. stenoph^Uus, Gray. More suffruticulose, hirtellous-scabrous : leaves very narrow, 

 linear-spatulate to filiform-linear (commonly inch or less long and half a line wide), one- 



, nerved : scapiform peduncles inch or two long : involucral bracts linear, glandular-puberu- 

 lent, equal, in one or two series. — Wilkes Ex. Exped. xvii. 347. — Mountains and stony hills, 

 W. Idaho and Washington Terr, to northeastern borders of California, Pickering and Braclc- 

 enridge, Burke, Nevius, Howell, Limmon. 



* * * Anomalous species, slirubby, a transition to the following section, of which it has the 

 foliage and habit, but with broad rather large heads and little-imbricated involucre. 



A. linearifolius, DC. Undershrub, a foot to a yard or more high, fastigiately much 

 branched, with herbage often resinous-dotted and balsamic-viscid : branches thickly leafy : 

 leaves all narrowly linear (an inch or less long, a line or less wide), sometimes almost filiform, 

 . many in axillary fascicles : heads solitary terminating the corvml)iform branclilets, on pedun- 

 cles bearing one or two setaceous-subulate bracts: involucre fully half-incli high;' its bracts 

 thin, lanceolate, acute or acuminate, somewhat scarious-margined (at least when dry) in 

 about 2 series of nearly equal length : rays about 12, oblong or broadlv lanceolate, in largest 

 heads nearly three-fourths inch long, in smaller only half that length : st^lo-appenda^'Ps 

 from ovate- to lanceolate-subulate: akenes densely silverv-viUous : pappus white rather de- 

 ciduous. - Prodr. V. 347; Gray, Bot. Calif, i. 311. Sienntus linearifolius, Torr. & Grav El 

 11. 238. — Dry hills, coast ranges of California from San Francisco Bav southward • and 

 mountains of San Bernardino Co. to S. Utah and adjacent Arizona. Southward it bears 

 more numerous and smaller heads than at the north. 



§ 5. EmcAMEEiA, Gray. Heads small or barely middle-sized, paiiiculately or 

 corymbosely disposed : involucre oblon- or campanulate, of well-imbricated liracts ; 

 these all chartaceous or thinner, appressed, and wholly destitute of herbaceous 



