SCROPHULARIACEAE. 223 



Pentstemon triphyllus Dougl. Puberulent ; stems slender, from a branched 

 woody base, 30-50 cm. high; leaves in whorls of 3, or the uppermost alternate, 

 linear or lanceolate, entire or few-toothed, sessile, 1-2 cm. long; panicle loose, 

 narrow; peduncles 2-5-flowered ; pedicels short; calyx glandular, 3-4 mm. long; 

 corolla 2-lipped, purple, 15 mm. long, minutely viscid-glandular; anthers 

 dehiscing only at the apex, the base sac-like; sterile filament densely bearded. 

 Rock crevices near Albion and along Snake River; also reported from the Blue 

 Mountains by Douglas. 



Pentstemon richardsonii Dougl. Glabrous; stems from a branched woody 

 base, erect or ascending, 60-90 cm. high, often branched; leaves lanceolate 

 to ovate, mostly deeply toothed or pinnatifid, 3-8 cm. long, those on the 

 branches alternate; panicle loose, somewhat glandular; sepals ovate, acute; 

 corolla red, somewhat funnelform, 20-25 ram. long; sterile filament with a 

 few hairs near the tip. On basalt ledges, Spokane County. 



331. SCROPHULARIA. Fig wort. 



Perennial herbs; leaves opposite; flowers small, in loose cymes 

 in a narrow terminal panicle; calyx deeply S-cleft; corolla 5- 

 lobed, the 4 upper lobes erect, the lower spreading; stamens 4; 

 the fifth sterile one a scale-like rudiment at the summit of the 

 corolla-tube; capsule many-seeded. 



Scrophulaiia calif omica Cham. Puberulent; stems stout, simple, about 

 1 ra. high, somewhat 4-sided; leaves triangular-ovate, acute, coarsely and 

 unevenly toothed or cleft, 5-12 cm. long, on petioles about half as long; 

 panicle narrow, 20-40 cm. long, somewhat glandular; bracts lanceolate-at- 

 tenuate; flowers dull-purple or green; calyx-lobes rounded, as long as the tube; 

 corolla 6-8 mm. long; rudimentary stamen broad, spatulate; capsules conical, 

 glandular. Low ground, not common. Our form is not typical. 



332. COLLINSU. 



Annuals or biennials; leaves simple, opposite, sessile or the 

 lowest petioled and the upper whorled; flowers solitary or 

 clustered in the upper axils; calyx deeply 5-cleft; corolla with 

 the tube saccate at the base on the upper side, deeply 2-lipped ; 

 the upper lip 2-cleft, the lower 3-cleft, the middle lobe keeled and 

 sac-like; anther-bearing stamens 4; sterile stamen a gland-like 

 structure; capsule 4-many-seeded. 



Corolla 5-7 mm. long; tube longer than the limb. C. lenella. 



Corolla 12-16 mm. long; tube shorter than the limb. C. grandiflora. 



Collinsia tenella (Pursh) Piper. (C. parvifiora Dougl.) Glabrous or 

 minutely puberulent, branched from the base, erect or spreading, 10-20 cm. 

 high; lower leaves oblong or orbicular, petioled, often toothed; the upper 

 nearly sessile, oblong or linear, acutish, 1-2 cm. long, often in whorls of 3-5; 

 flowers slender-pedicelled, solitary or nearly so in the axils, even of the lower 

 leaves; calyx-lobes lanceolate, acute, longer than the tube, not equalling the 

 corolla; corolla violet or blue, 6-7 mm. long, 2-lipped for half its length. 

 Common everywhere. 



Collinsia grandiflora Dougl. Very similar to C. tenella but larger, 15-30 

 cm. high; leaves larger, the cauline in whorls of 3-7; calyx-lobes triangular- 

 subulate, very acute, longer than the tube; corolla blue-violet, 8-16 mm. long. 

 In open woods near Troy, Idaho, and along the Clearwater River. 



