1899 ] NEW SPECIES OF WESTERN PLANTS 455 
dilated into a‘ventricose throat ; lower lip deeply three-lobed and 
spreading, rarely sparingly yellow-bearded: sterile filament 
densely yellow-bearded above the middle. 
Walker pass and sandy slopes of Argus mountains, Cali- 
fornia. Dr. C. A. Purpus, nos. 5351, 5346. 
This species is near P. fruticiformis Coville, but is easily distinguished by 
its narrower leaves and differently shaped flowers; also its calyx lobes are 
not white-margined, and usually the corolla lobes are not bearded. e 
flower of P. fruticiformis has almost no proper tube, while that of P. incertus is 
two or three times the length of the sepals, and the throat is not so ventricose, 
nor the lobes so spreading. When dried the flowers of P. zucertus become 
a dark lavender, while those of P. fruticiformis change to ochroleucous. 
Pentstemon petiolatus, n. sp.—Glabrous, the calyx slightly 
pruinose: stems 10™ high, cespitose from a woody root: leaves 
coriaceous, sharply serrate, broadly ovate, acuminate, 1-2™ long 
and broad, cordate to cuneate at base, on petioles 10-15" long: 
the leafless thyrsus short, 2—-4™ long, 5 to 12-flowered; bracts 
vate-acuminate, 1—3™" long: sepals ovate, acuminate, 6"" long: 
_ Corolla 15" long, broadly funnelform, the short lobes spreading. 
the lower bearded within: sterile filament glabrous: capsule 
slightly exceeding the sepals, nearly as broad as long: seeds 
dark-colored, granular roughened and almost wing-angled. 
Sheep mountain, Nevada, at 5000 ft. altitude, Dr. C. A. 
Purpus, no. 6136. 
Dr. Purpus notes that the flowers were violet. Nearest to P. deustus 
Dougl., which has longer and narrower usually sessile leaves, and smaller 
e flowers in a virgate leafy thyrsus. 
Pentstemon (SaccanrHera) Purpusi, n. sp—Densely soft 
_ pubescent and somewhat glandular above: stems ascending from 
* woody base 6-1 5 high: leaves orbicular or broadly obovate, 
‘apering to a short petiole or sessile, 8-10"" wide, entire or rarely 
slightly crenate-dentate: thyrsus half the length of the stems; 
cymes short-pedunculate, one to three-flowered: corolla 3-3.5™ 
long, Violet, ventricose at the throat and not enlarged above, 
_ "PPer lip 5"" long, lobed to the middle, lower lip the same length, 
-_ thtee-lobed : sepals 7—-8™ long, ovate-acuminate or broadly 
