352 DESCRIPTIONS OF NEW SPECIES 



lanceolate; pappus scales obtuse, with or without a single subulate awn; ache- 

 nium grooved, hirsute at the summit ; stigma slender. 



Hab. In the Kamas plains, near Flat-Head River, towards the sources of the Columbia, and in 

 the plains near the Blue Mountains of Oregon. About a span high. Stem simple, one-flowered, 

 smooth below, almost lanuginous at summit; sepals lanuginous and ciliate on and near the margin. 

 Scales of the receptacle lanceolate, hirsute, pungent, nearly the length of the discal florets, some- 

 times with a short tooth on either side. Achenium angular, but so much grooved as to appear 

 nearly terete. Pappus variable, the multifid crown pubescent, of eight or ten unequal segments, 

 always present; in others there is, besides, on one of the angles, a slender awn. Rays eighteen 

 to twenty, entire, pale yellow, with infertile filaments. 



Wyethia * angustifolia; very dwarf, softly pubescent; stem one-flowered; 

 sepals pilose, ciliate, the outer broadest, lanceolate; leaves spathulate or spathu- 

 late-lanceolate, entire ; pappus scales acute, lacerate, with a single awn at one 

 of the angles; achenium quadrangular, nearly even, smooth; stigma very long, 

 flat and revolute. Alargonia angustifolia; Decand. 1. c. 



Hab. Round Monterrey, Upper California. A dwarf species like the last, with a dispropor- 

 tionately large capitulum; the rays deep yellow, about twelve, distinctly three-toothed, with fila- 

 ments of stamens. Stigmas remarkable for their length, ligulate, smooth above, hirsute below 

 with golden hair. Radial floret contracted at base. About a span high, lower part of the stem, 

 near its base, smooth. 



Wyethia *robusta; somewhat scabrous and pubescent, particularly the base 

 of the stem, which is one-flowered; leaves all lanceolate, acute, radical subser- 

 rate, stem leaves sessile; sepals nearly all equal, lanceolate or linear-lanceolate, 

 acute; achenium quadrangular, nearly even, with one to four unequal awns; 

 stigma long and flat. 



Hab. Plains of the Oregon, near the confluence of the Wahlaraet, common, in wet places. 

 Flowering in June. Eighteen inches to two feet high; always with a single flower. Radical 

 leaves a foot long, attenuated, and very hairy on the petiole, as well as more or less so on the 

 mid-rib, nearly entire, or irregularly serrate, acute. Rays twelve to eighteen, twice as long as the 

 disk, and exceedingly like that of an Helianthus. Achenium sharply quadrangular, even, except 

 a groove on one side, slightly pubescent at the summit; crown of pappus in eight or ten divisions, 

 lacerate, often presenting from one to four awns, unequal, but not all of them on the angles. Re- 

 ceptacle convex. 



Wyethia amplexicaulis; smooth, shining, and somewhat glutinous; leaves 

 lanceolate, acute, entire or subserrulate, cauline ones amplexicaule ; stem three 

 to five-flowered, flowers axillary and terminal, pedunculate; sepals broad ovate; 



