142 Flora of the Palouse Region 



the lower opposite, oblong or obovate, 1-2 cm. long, the upper alternate, 

 lanceolate, acute, 2-4 cm. long: flowers solitary in the forks or axils, short- 

 pedicelled, somewhat cymose through the reduction of the leaves: calyx- 

 lobes subulate, mucronate, twice as long as the campanulate tube, this at 

 length splitting to the base: corolla tubular-salverform, 8-10 mm. long, the 

 tube yellow, not longer than the calyx-lobes, the limb purple-pink: stamens 

 unequally inserted: ovules and seeds solitary in each cell: seed-coats without 

 spiricles. Very common everywhere. 



G. microsteris Piper, new name (Microsteris humilis Greene). Annual, 

 usually branched from the base, the branches ascending, minutely pubescent 

 throughout, 5-15 cm. high: lower leaves opposite, oblong or oblanceolate, 

 obi use; upper alternate, linear, 1-2 cm. long: calyx-lobes subulate, twice as 

 long as the tube, at length splitting to the base and spreading: pedicels un- 

 equal: corolla-tube yellow, 4-10 mm. long, scarcely longer than the calyx, 

 the limb purple, 3 mm. broad: ovules and seeds solitary in each cell, not de- 

 veloping spiricles. Common on hillsides. It is possible that this plant is 

 Collomia humilis Dougl., but the description of that is too brief while its 

 source would indicate it to be rather a form of G. gracilis. 



G. harknessii Curran. Very slender, simple or branched above, 5-15 cm. 

 high, glabrous: leaves sessile, all palmately parted into 3-9 thread-like lobes, 

 5-10 mm. long, the uppermost alternate, the others opposite: flowers on 

 slender spreading pedicels, 1-4 cm. long: calyx-lobes unequal, shorter than 

 the tube: corolla whitish, 3 mm. long, barely exceeding the calyx: stamens 

 unequally inserted: ovules and seeds solitary in each cell; seed-coats be- 

 coming mucilaginous when wetted. Stony soil, Kamiack Butte and summit 

 of Cedar Mountain. 



G. intertexta Steud. Sterns erect and simple below or more commonly 

 much branched and spreading, 5-15 cm. high, pubescent: leaves all alter- 

 nate, once or twice pinnately cleft into linear spinescent lobes, glabrous or 

 nearly so: flowers crowded in head-like clusters, the bracts and calyx-tube 

 villous with white hairs: calyx-lobes more or less cleft into spinose divisions: 

 corolla tubular, funnelform, pale blue, equalling the calyx-lobes, 5-6 mm, 

 long: ovules and seeds 3-4 in each cell; seed-coats developing spiricles. 

 Common in low ground. 



G. aggregata Spreng. Biennial, loosely pubescent throughout or rarely 

 puberulent-viscid above, 30-80 cm. high, simple or sparingly branched: 

 leaves 4-6 cm. long, pinnately parted into many linear mucronate lobes, 1-2 

 cm. long: panicle narrow, loose or interrupted: calyx glandular, the subulate 

 lobes twice as long as the tube: corolla showy scarlet, tubular-funnelfoim, 

 much exceeding the calyx, 3 cm. long, the lobes spreading or recurved, 

 ovate-lanceolate, acute or acuminate, about 1 cm. long: stamens unequally 

 inserted: seeds numerous in each cell, the coats developing spiricles when 

 wetted. Common on stony hillsides. 



235. POLEMONIUM. 



Annual or perennial herbs: leaves alternate, pinnate or pinnately- 

 parted: flowers in corymbs, nearly bractless: calyx bell-shaped or 

 short funnelform, the tube very short: stamens equally inserted 

 at the summit of the corolla-tube: capsule few-several-seeded. 



