PENNELL—SCROPHULARIACEAE OF THE ROCKY MOUNTAINS. 341 
branches, their pedicels shorter than the peduncle; sepals 8 mm. long, lanceolate, 
acuminate, glandular-pubescent; corolla 12 mm. long, the tube and throat 7 mm. 
long, about 4 mm. wide, much inflated and rounded, the lobes 4 to 5 mm. long, the 
2 posterior ones united and arched one-third to one-half their length, the 3 anterior 
ones united slightly at base, their free portions spreading, the corolla externally 
glandular-puberulent, within pubescent over the bases of the anterior lobes, probably 
purplish blue (not seen fresh); anther sacs widely divaricate, 1 to 1.2 mm. long, with 
short line of contact, the suture fimbriolate, the surface elsewhere minutely puberu- 
lent; sterile filament about 5 to 6 mm. long, apparently included, flattened, enlarged 
distally, densely bearded on the posterior face nearly to the base with yellow hairs; 
capsule not seen. 
Type in the U.S. National Herbarium, no. 215626, collected at Mancos, Montezuma 
County, Colorado, in flower, July, 1890, by Alice Eastwood. This was distributed as 
P. jamesit Benth. 
Upper Sonoran Zone. 
12. Penstemon dolius Jones, sp. nov. 
Stems several, 2 to 12 cm. tall, from a short branched caudex, cinereous-puberulent 
throughout with reflexed hairs; leaves dull above, pale beneath, cinereous-puberulent, 
those at the base of the stem with lanceolate-ovate blades, these acute, 1.2 to 3 cm. 
long, narrowed into margined petioles 0.7 to 2 cm. long, the stem leaves sessile (oppo- 
site leaves not meeting around the stem), oblanceolate, obtusish to acute, the largest 
mostly 1.5 to t cm. long, 2 to 8 mm. wide; thyrsus narrow, over one-half the height 
of the plant, composed of 3 to 6 fascicles, each consisting of 2 short axillary branches; 
sepals 7 to 9mm. long, linear-lanceolate, acuminate, obscurely or not ribbed, entire, not 
scarious-margined, densely puberulent; corolla 15 to 18 mm. long, the tube and throat 
11 to 13 mm. long, the throat somewhat inflated and rounded ventrally, the 2 poste- 
rior lobes 2 to 5 mm. long, united and arched much less than one-half their length, 
the 3 anterior lobes 3 to 6 mm. long, all the free lobes widely spreading, the corolla 
externally sparsely glandular-puberulent, within slightly pubescent or glabrous over 
the bases of the anterior lobes, blue (not seen fresh); anther sacs widely divaricate, 
0.8 to0.9 mm. long, lance-oblong, minutely puberulent, distinct, with medium line of 
contact, opening throughout, the suture fimbriolate; sterile filament 8 to 10 mm. long, 
scarcely exserted, flat, slightly enlarged distally, moderately bearded, especially 
toward apex, with relatively (to P. eriantherus) short yellow hairs on the posterior 
face; capsule not seen. 
Type in the U. 8S. National Herbarium, collected at Willow Springs, Nevada, in 
flower, June 5, 1891, by M. E. Jones. Isotypes in herbaria of the New York Bo- 
tanical Garden and the Missouri Botanical Garden. 
Probably dry sagebrush slopes, at altitudes of 1,500 to 1,650 meters; Upper Sonoran: 
Zone; flowering mid-May to early June. Valley of Duchesne River, northeastern: 
Utah, of the Sevier River in central Utah, and in eastern Nevada. 
Urau: Sevier: Red hills north of Redmond, Eggleston 11130 (U). Wasatch: Theo- 
dore to Myton, Jones (U, Y; this collection differs in its dwarf habit and more 
widely spreading corolla lobes, and only because of the variability in the corolla. 
lobes of the type of P. dolius is it placed with this species). 
In the Gray Herbarium are two specimens bearing data in the handwriting of Asw 
Gray, “‘S. Utah, Siler in litt.,”’ determined by him as P. ‘‘pumilus var. Thompsoniae,’” 
These are evidently an undescribed plant allied to P. dolius but which has the line 
of contact of the more puberulent anther sacs very short. The specimens are both 
incomplete, showing only the inflorescence. 
