Flora of the Palouse Region 159 



gin irregularly dentate or erose, about as long as the capsule: corolla yellow 

 or nearly white, 2-lipped, 8-12 mm. long; lower lip bearded: anthers de- 

 hiscing their whole length: sterile filament bearded. Common at Pullman, 

 var. coeruleo-purpureus Gray. Corolla dark-blue, rather smaller. Pine 

 woods, Palouse City. 



P- attenuatus Dougl. Differs from the preceding only in its larger cor- 

 olla, 18 mm. long, usually yellow, sometimes blue. Kamiack Butte. 



P. glandulosus Lindl. Pubescent and glandular throughout: stems .5-1 

 111. high: radical leaves ovate-lanceolate, acute, dentate, narrowed at base 

 into a petiole, 10-15 ctn - l° n g; cauline similar but sessile, the upper cordate- 

 clasping: panicle interrupted, leaf}- below; lower peduncles 2-4 cm. long, the 

 upper ones short: sepals ovate, acuminate, 6-8 mm. long: corolla dull-purple, 

 funnelform, dilated in the throat, shortly 2-lipped, 2.5-3 cm - l° n g. pubescent 

 outside: anthers dehiscent at apex, the base sac-like; sterile filament glab- 

 rous. Snake River bluffs near Lewiston. 



P. triphyllus Dougl. Puberulent: stems slender from a branched woody 

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

 ear or lanceolate, entire or few-toothed, sessile, 1-2 cm. long: panicle loose, 

 narrow: peduncles 2-5-fiowered; pedicels short: calyx glandular, 3-4 mm. 

 long: corolla 2-lipped, purple, 1.5 cm. long, minutely viscid-glandular: 

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

 bearded. Rock crevices near Guy and along vSnake River. 



266. COLUNSIA. 



Annuals or biennials: leaves simple, opposite, sessile or the low- 

 est 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. 



C. parviflora Dougl. Glabrous or minutely puberulent, branched from 

 the base, erect or spreading, 10-20 cm. high: lower leaves oblong or orbicu- 

 lar, petioled, often toothed; the upper nearly sessile, oblong or linear, acut- 

 ish, 1-2 cm. long, often in whorls of 3-5: flowers slender-pedicelled, solitary 

 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. 



267. TOXKLI.A. 



Very similar to Collinsia but the cauline leaves mainly ternately 

 divided or 3- parted: corolla obscurely 2-lipped, the 5 more or less 

 unequal lobes somewhat rotately spreading, the tube somewhat 

 gibbous above: ovules and seeds 1-4 in each cell. 



T. floribunda Gray. Stems slender, usually branched, r 0-50 cm. high; 



basal leaves simple, ovate, entire or few-toothed, 5-10 mm. long, slender- 

 petioled; cauline all 3-parted <>r divided, short-petioled or sessile: divisions 



