ERIGERON COMPOSITE 317 



leaves thin, the lowest with obovate to oblanceolate blade, less than an 

 inch long and slender petiole 2 inches or more long; cauline leaves 

 oblanceolate to spatulate, 1-2 inches long, sessile: Heads solitary or 2-3, 

 slender-peduncled : involucre about 3 lines high and 3-4 broad, the 

 bracts equal, broad-subulate, attenuate-acuminate : rays 25-30, 5-6 l ; nes 

 long, white to pale purple. Wet banks, at the head of Cheney Creek, 

 Josephine Co., Oregon. 



E spatulifolius. Stems numerous from a thick multisepital caudex, 

 slender, leafy, somewhat hirsute toward the top, monocephalous, 4-8 inches 

 long, erect or ascending: radical leaves spatulate, attenuate below to a 

 broad-winged petiole, rounded at the summit, entire, or sparingly dentate 

 toward the apex, 1-3 inches long, glabrous both sides; cauline leaves 

 peveral, rather crowded, oblong to ovate, sessile by a broad somewhat 

 clasping base: heads half-inch high and broad: bracts of the involucre 

 linear, acute: rays 30-40, purple: pappus nearly simple of rather few 

 bristles : achenes smooth. On rocky banks Pansy Camp, Cascade moun- 

 tains, Oregon. 



E. Aliceae Rootstock slender, stem 18-30 inches hig>i, erect, sparingly 

 branched near the top: whole herbage pubescent with soft spreading 

 hairs: radical and lower cauline leaves lanceolate, entire, the blade 2-3 

 inches long, 4-8 lines broad, on slender petioles as long or longer than the 

 blade : upper cauline lanceolate, sessile, often attenuate-acuminate : heads 

 solitary, terminating the slender branches, 6-7 lines broad: bracts of the 

 involucre subulate acuminate, nearly equal, tomentose with rather long 

 white wool : rays 50-60, purple or violet. In open damp woods, Siskiyo.u 

 mountain's near the Oregon line. Distributed in 1887 as E. Coulteri. 



E. amplifolins. Stems erect, 20-30 inches high from a somewhat 

 surculose rootstock, leafy, glabrous or sparingly pubescent toward the top : 

 lower leaves ovate-lanceolate 8-15 lines broad, attenuate below to a long 

 slender petiole: upper ones lanceolate or oblong and sessile: heads one to 

 several, large, hemispherical: bracts of the involucre linear, acute or 

 acuminate, rather numerous, imbricated in 2 or 3 ranks: rays 50-60, 

 rather broad, blue or violet, 10-12 lines long: pappus simple or nearly so: 

 achenes obovate, 2-nerved, sparingly pubescent. On oj-en hillsides near 

 Table Rock, Clackamas County, Oregon. 



+* + Less Aster-like: rays 100 or more and narrow: involucre 

 closer : pappus more or less double, but the exterior minute, setulose 

 or subulate -squamellate : stems chiefly erect, tufted, generally, leafy 

 to the summit and bearing few or several heads : leaves entire. 



E. speciosns DC. Prodr. v, 284. Sparingly and loosely hirsate or with 

 a few scattering hair: stems 20-30 inches high, very leafy to the top; leaveg 

 lanceolate, acute 3-8 lines wide, sparsely ciliate; lowest more or less spatu- 

 late : involucre hirsute-pubescent, or sometimes almost glabrous: rays 

 half-inch to almost an inch long, violet. Dry ridges and edges of prai ies. 

 British Columbia to western Oregon. 



- *- Low, rarely a foot high, conspicuously hispid o- hirsute with 

 spreading bristly hairs: leaves entire, narrow, involucre close: raj s 

 numerous occasionally wanting: pappus conspicuously double. 



*- Sparingly branched, stems several or numerous from the cr wn 

 of a tap root, more or less leafy: heads middle-sized: disk a third to 

 half inch in diameter: involucre hispid: rays 50-80 long and narrow, 

 soon denVxed occasionally wanting. 



E. concinnus T. & G. Fl. ii, 174. Very hirsute throughout with long 

 spreading white hairs: stems several from the same root or caudex, 6-10 

 inches high, slender, leafy, branching, above, the branches terminated by 



