PENNELL—SCROPHULARIACEAE OF THE ROCKY MOUNTAINS. 351 
glaucous, very obscurely veined, glabrous, those at the base of the stem with narrow, 
oblanceolate, rounded but mucronately acute blades 3 to 5 cm. long and 0.6 to 0.8 cm. 
wide, narrowed into petiole-like bases of nearly one-half the total length, those of the 
stem similar, clasping from a narrowed base, smaller, becoming much reduced in the 
inflorescence; thyrsus narrow, strongly secund, raceme-like, nearly one-third the 
height of the plant, composed of 5 or 6 fascicles, each consisting of 2 short axillary 
branches, the pedicels equaling the peduncle; sepals 5 to 6 mm. long, broadly ovate, 
with a slightly defined short acute tip, apparently not veined, with broad, white to 
pinkish, strongly and irregularly denticulate margin, finely glandular-puberulent; 
corolla 18 to 20 mm. long, the tube and throat 12 to 13 mm. long, the tube broad, the 
throat inflated and rounded ventrally, the 2 posterior lobes 5 to 6 mm. long, united 
and arched about one-third their length, projecting, the 3 anterior lobes 6 to 7 mm. 
long, united at base, the free portions spreading; corolla externally sparsely glandular- 
puberulent, within glabrous, probably blue (not seen fresh); anther sacs widely 
divaricate, 1 to 1.2 mm. long, lance-ovate, distinct, opening from the distal apex 
throughout, pubescent on the side with short hairs; sterile filament apparently equal- 
ing the anterior pair, gradually enlarging distally, flattened, bearded on the posterior 
face distally with yellow hairs; capsule not seen. 
Type in the herbarium of the New York Botanical Garden, collected on crest of 
mountains, Dyer Mine, Uinta Mountains, Uinta County, Utah, in flower, June 30, 
1902, by L. N. Goodding (no. 1221; distributed as P. hallii A. Gray). Isotypes in 
herbarium of Field Museum of Natural History and U. S. National Herbarium. 
Alpine Zone. 
33. Penstemon cyaneus Pennell, sp. nov. 
Stems several, 40 to 80 cm. tall, from a short stout caudex, glabrous throughout, not 
or slightly glaucous; leaves light green, not glaucous, obscurely veined, glabrous, 
those at the base of the stem with lanceolate acute blades 15 cm. long and 1 to 2 cm, 
wide, narrowed into petiole-like bases of about one-third the total length, those of 
the stem lanceolate, clasping from a narrowed (or, in the upper leaves, widened) base, 
the longest 6 to 10 cm. long, becoming much reduced in the inflorescence; thyrsus 
narrowly elongate, strongly secund, nearly one-half the height of the plant, com- 
posed of 7 to 12 fascicles, each consisting of 2 axillary branches; pedicels shorter than 
(or the longest exceeding) the peduncle; sepals 4.5 to 5 mm. long, broadly ovate to 
nearly orbicular, with an evident short-acuminate tip, finely veined in age, with 
very broad, white to bluish, irregularly denticulate, scarious margin, glabrous; corolla 
27 to 30 mm. long, the tube and throat 19 to 21 mm. long, the tube narrow, the throat 
inflated and rounded ventrally, somewhat contracted to the orifice, the 2 posterior 
lobes 8 to 9 mm. long, united one-third their length, projecting, the 3 anterior lobes 
slightly longer, united and flattened for 4 mm., the free lobes spreading to deflexed; 
corolla glabrous without and within, (early changing from violet-pink to) deep sky 
blue, violet toward tube; anther sacs divaricate, 1.8 to 2 mm. long, lanceolate, dis- 
tinct, opening from the distal apex two-thirds to four-fifths their length, violet-purple 
on the sides, pubescent on the side with short fine hairs; sterile filament shorter than 
or equaling the anterior pair, violet-blue, gradually enlarging distally, flattened, 
bearded on the posterior face distally with yellow hairs; capsule 12 to 15 mm. long, 
ovate, acuminate, glabrous; seeds 2 to 3 mm. long, irregularly quadrangular in out- 
line, curved, the angles sharp, thin, not winged, the surface finely alveolate-reticulate, 
brown, glistening. 
Type in the herbarium of the New York Botanical Garden, collected in dry sage- 
brush, along railroad north of Ashton, Fremont County, Idaho, altitude of 1,560 to 
1,590 meters, in flower and immature fruit, July 9, 1915, by F. W. Pennell (no. 6046). 
Open sagebrush slopes, frequently gravelly or rocky, at altitudes 1,500 to 2,000 
(3,000) meters; Submontane Zone; flowering mid-June to early August. Foothills 
