Piper — New Plants from the Pacific Northwest. 105 



involute, acute; stigma small, globose; immature pods ovoid, acute, 

 glabrous. 



Grayhart Buttes, County, Oregon, alt. 2250 meters, August 8, 1896, 

 Coville and Leiberg No. 283. 



Related to C. angustifolia (Nutt.) Don, but distinguished by its viscid 

 puberulence, mostly entire leaves, and peculiarly colored bracts and co- 

 rolla. 



Aster misellus, n. sp. 



Perennial from a loosely muchbranched base; stems simple or loosely 

 branched above, terete, sparsely white puberulent, purple, 10-20 cm. high ; 

 leaves pale, entire or few- toothed; basal leaves spatula te-oblong, obtuse, 

 glabrous except the ciliolate margins, the blades equalling the petioles; 

 cauline narrowly oblanceolate, obtuse to acute, half-clasping at base, 

 2-8 cm. long, ciliolate at the base and slightly so on the margins; upper 

 ones reduced; heads few, mostly solitary terminating the branches, each 

 about 1 cm. broad, hemispheric; tegules in two indistinct series, acute 

 to obtusish, the midribs and tips green, broadly scarious-margined, ciliolate, 

 glabrous on the back, shorter than the disk; rays about 20, pale violet 

 6-8 mm. long; pappus whitish; akenes sparsely hirsutulous. 



Moist beach of Strawberry Lake, Strawberry Mts., Grant County, 

 Oregon, W. C. Cusick, Nos. 3636 (type), 3623, 3625, September 9, 1910. 

 Closely allied to A. occidentalis Nutt. 



Achillea eradiata, n. sp. 



Perennial with a creeping rootstock; stems about 30 cm. high, corym- 

 bosely branched above, sulcate, sparsely villous; leaves green, sparsely 

 villous, the lower ones 5 cm. long, petioled from a broad scarious base, 

 the upper ones 2-3 cm. long, sessile and but slightly broadened at base; 

 lower leaves with 10-15 pairs of divisions, separated by about half their 

 length, most of the divisions deeply 5-10 cleft; upper leaves less deeply 

 divided, the rachis margined, the divisions merely lobed or cleft; inflores- 

 cence loose, composed of about 5 corymbiform branches 4-5 cm. long; 

 heads cylindric-turbinate, 5-7 mm. long, 3-4 mm. broad; tegules about 

 20, elliptic-ovate, sparsely villous, all obtuse, greenish along the midrib, 

 the scarious margins brown; flowers 3 mm. long, cream-colored, all tubular, 

 the outer ones slightly larger, an occasional one developing into an im- 

 perfect ligule; akenes immature. 



Dry border of woods, east end of Pamelia Lake, foot of Mt. Jefferson, 

 Oregon, 4000 ft. alt., Aug. 13, 1919, J. C. Nelson No. 2791, one plant only 

 growing with the common Achillea lanulosa Nutt., from which it is strik- 

 ingly divergent. Very different from any other North American species 

 in its very loosely divided leaves, large involucres, and rayless heads. 



Arnica aphanactis, n. sp. 



Rootstocks slender, creeping; herbage wholly glabrous except the mi- 

 nutely puberulent peduncles; stems 30 cm. high, somewhat shiny; basal 

 leaves not seen; cauline 2 pairs, elliptic or slightly ovate, paler beneath. 



