326 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Plants glabrous or finely puberulent, rarely decidedly so; corolla 
mostly blue, the posterior lobes mostly more united, for one- 
third to usually over one-half their length; anther sacs glabrous 
to lanose, with short line of contact. 
Stem leaves ovate to orbicular, dentate or serrate, glaucous; 
corolla (probably in ours) not blue. 
Corolla 15 mm. long, scarcely inflated, strongly bearded within, 
apparently reddish; anther sacs short, semicircular; sterile 
filament not exserted, relatively short-bearded; leaves 
orbicular, dentate, the lower ones on conspicuous petioles, 
the upper ones distinct; plants cinereous-puberulent, 
glandular-pubescent in the inflorescence .. VII. Petiolati. 
Corolla 25 to 30 mm. long, strongly inflated, slightly bearded 
within, “‘cream-white, and usually suffused or particolored 
with pink’’; anther sacs ovate; sterile filament conspicu- 
ously exserted, bearded with long hairs; leaves ovate, 
serrate, the lowest somewhat petioled, the upper ones fre- 
quently connate; plants glabrous below, glandular-pubes- 
cent in the inflorescence............. VIII. Spectabiles. 
Stem leaves linear to lance-ovate, entire, not or scarcely glaucous, 
the upper ones always distinct; corolla blue. Sterile filament 
bearded with short hairs or glabrous........... IX. Glabri. 
Leaves relatively thick, more or less fleshy; plants strongly glaucous; 
sterile filament relatively broad, more or less enlarged distally 
(bearded with relatively short hairs); seeds 2.5 to 5 mm. long, 
more coarsely alveolate-reticulate; corolla lobes all widely spread- 
ing (posterior lobes united less than one-half their length). 
X. Coerulei. 
Leaves filiform to narrowly linear. 
Corolla 13 to 15 mm. long, the throat straight, inflated anteriorly, pubes- 
cent within over bases of the anterior lobes; sterile filament bearded; 
plants 10 to 30 cm. tall, the leaves more or less crowded at or near 
the base... 2... 2. ec eee cece een cece cece cee oe XI. Laricifolii. 
Corolla 15 to 20 mm. long, the throat decurved, narrow, not inflated, 
puberulent within over bases of all the lobes; sterile filament 
glabrous; plants 20 to 40 cm. tall, the leaves more scattered on the 
BLOM... eee cece wees cece cceee XII. Ambigui. 
Corolla%throat flattened and 2-ridged within anteriorly; seeds grayish brown, 
0.5;to 2 mm. long; stems usually depressed and more or less suffrutescent 
at base; plants probably all perennials. 
Corolla white, glandular-puberulent within over bases of all the lobes; leaves 
coarsely sinuate-dentate....... 22.2... cece eee eee ceeeee XIII. Deusti. 
Corolla blue or chocolate-purple, pubescent to lanose within over bases of 
the anterior lobes; leaves, at least the basal ones, entire or nearly so. 
Corolla 8 to 22 mm. long, pale to deep blue, pubescent within over bases 
of the anterior lobes, these equaling or somewhat exceeding the 
posterior ones. 
Corolla somewhat expanding, the posterior lobes more or less spreading; 
seeds pale toward the margin, lighter in shade, 0.5 to 2 mm. long; 
stems erect, diffuse-spreading only at base, not forming mats; 
plants finely puberulent or glabrous.............. XIV. Graciles. 
