Contribution* to Western Botany. 37 



lines long; seeds without mucilage or spiricles; corolla tube 

 barely 2 lines long, white or yellowish, a trifle longer than the 

 widely spreading obovate, obtuse, sky-blue lobes; anthers round 

 to reniform, very small, white, on tapering blue filaments, but 

 little exserted; style in flower barely equaling the anthers, in 

 fruit 4 lines long, 3-lobed, blue. Green River, Wyo., 6000 ft. alt. 

 in poor clay soil. June 23, 1896. This differs from G. pinnatif- 

 ida Nutt in the obtuse broad lobes of the leaflets, and in the 

 broad terminal one, in the general outline of the inflorescence 

 being corymbose and not thyrsoid, flowers not in clusters, and 

 half the size, calyx lobes broad and not triangular-acute, 

 anthers round and not ovate and half the size. 



Pentstemon sudans n. sp. Shrubby, 1 to 2 ft. high, stems 

 rather tufted, erect, the season's growth about a foot long, whole 

 plant glandular-short-hairy even to the flowers, especially above; 

 lower leaves obovate to oblanceolate-oblong, tapering into a 

 short winged petiole, 1 to 2 inches long, the upper ones an inch 

 long, ovate-oblong, sessile with rounded base, scarcely reduced 

 above, all sharply, irregularly and rather deeply serrate and with 

 white mucro, only the upper ones acute; internodes shorter 

 than the leaves; flowers in an interrupted but nearly continuous 

 spike 4 to 6 inches long; bracts small, cordate-ovate, much 

 shorter than the flowers, mostly entire, a few of the lower some- 

 times larger and leaf-like; peduncles and pedicels almost none; 

 calyx tube campanulate, a line long, teeth triangular, green, not 

 margined, a line long; flowers dull white, 6 lines long, thick,, 

 little ampliate above, distinctly bilabiate, lobes 2 lines long, the 

 3 lower reflexed; anthers opening from the top to the base but 

 not explanate fully, each cell oblong-oval, sterile filament gla- 

 brous, filiform. This is near to P. deustus. It grows on very 

 hot and dry lava rocks between Amedee and Susanville, Cal., 

 4000 ft. alt., June 24, 1897. 



Orthocarpus columbinus n. sp. Slender, annual, 6 to 12 

 inches high; branched at all the nodes but main stem erect and 

 stout for the slender plant, branches slender and nearly erect, the 

 lower very long; nodes 1 to 2 inches apart; leaves and bracts 

 entire and similar, 1^ to 2 inches long, thin, linear-lanceolate, 



