PENNELL—SCROPHULARIACEAE OF THE ROCKY MOUNTAINS. 339 
olate, the sacs elsewhere with minutely puberulent surface; sterile filament included, 
flattened, scarcely enlarged distally, glabrous or with a few short hairs at apex; cap- 
sule ovate, glabrous (not seen mature). 
Type in the U. 8. National Herbarium, no. 260627, collected at Springdale, Utah, 
altitude 1,200 meters, in flower, May 17, 1894, by M. E. Jones, (no. 5250, in part; dis- 
tributed as P. glaber Pursh). Another sheet of the same collection is the type of P. 
laevis, described below (p. 347). 
At altitudes of 1,200 to 1,600 meters; Upper Sonoran Zone; flowering in May. 
Virgin and Kanab valleys, southwestern Utah. 
Uran: Kane: Kanab, Jones 5286x (M). Washington: Springdale, Jones 5250 (U). 
8. Penstemon leptanthus Pennell, sp. nov. 
Stems several, 15 to 25 cm. tall, below densely canescent-puberulent with reflexed 
hairs, above becoming glabrate, from a short branched caudex; leaves not thickened, 
dull pale green above and beneath, obscurely veined, entire, densely cinereous- 
puberulent, those at the base of the stem with lanceolate blades, these obtuse to 
acutish, 5 to 6 cm. long, gradually narrowed to margined petioles 1 to 2 cm. long, 
the leaves on the stem sessile (the bases of opposite leaves not meeting), acutish, the 
largest 3 to 5 cm. long, 0.5 to 0.9 cm. wide; thyrsus narrow, less than one-half the 
height of the plant, of about 9 fascicles, each of 2 axillary short branches, their pedi- 
cels shorter than the peduncle; sepals 3 mm. long, ovate, acute, obscurely or not 
ribbed, slightly scarious-margined and slightly erose, proximally nearly glabrous; 
corolla 13 to 15 mm. long, the tube and throat 11 to 12 mm. long, the throat slightly 
inflated and rounded ventrally, the 2 posterior lobes 2 to 3 mm. long, united and 
arched about one-fourth their length, projecting, the 3 anterior lobes 2 to 3 mm. long, 
united at base, slightly spreading, the corolla glabrous without and within, probably 
blue (not seen fresh); anther sacs divaricate, 1 mm. long, lanceolate-oblong, minutely 
puberulent, opening distally most of their length, the suture glabrous; sterile filament 
scarcely exserted, flat, scarcely enlarged distally, bearded on the posterior face, 
especially distally, with yellow hairs; capsule not seen. 
Type in the U. 8S. National Herbarium, no. 146868 (in part), collected in central 
Utah, in flower, by L. F. Ward in 1875. This was probably part of Ward’s no. 280, 
collected at Twelve Mile Creek Canyon, near Mayfield, Utah, June 28, 1875, although 
mounted with and bearing the label of Ward 546 from The Button, Aquarius Plateau, 
Utah (see remarks under P. parvus, p. 345). It was distributed as P. acuminatus 
Dougl. 
9. Penstemon fremontii Torr. & Gray. 
Penstemon fremontu Torr. & Gray; A. Gray, Proc. Amer. Acad. 6: 60. 1862. ‘‘On 
the Uinta plains, very abundant and in large patches. June 5, 1844.’? Type, col- 
lected by Frémont, seen in herbarium of Columbia University at the New York 
Botanical Garden. 
Penstemon glaber fremontii Jones, Contr. West. Bot. 12: 62. 1908. 
Dry butte sides and sagebrush draws, at altitudes of 1,800 to 2,100 meters; Upper 
Sonoran Zone; flowering from late May to late June. Red Desert of southwestern 
Wyoming and northwestern Colorado. 
WyominG: Sweetwater: Bitter Creek (R, Y); Red Desert, Pennell 5882 (Y); Steam- 
boat Mountain (R); Wamsutter, Pennell 5884 (Hi, M, U, Y). 
CoLtorabo: Rio Blanco: Meeker, Osterhout 2608 (Y). Routt: Hayden, Osterhout 
5107, 5224. 
10. Penstemon auriberbis Pennell, sp. nov. 
Stems several, 10 to 20 cm. tall, below cinereous-puberulent with reflexed hairs , 
above spreading-pubescent with narrow-headed gland-tipped hairs; leaves linear to 
129510°—20——3 
