768 SCROPHULARIACEAE 



Anthers glabrous; leaves usually glabrous. 95. P. Torreyi. 



Anthers long-bearded; leaves usually somewhat puberulent. 96. P. trichander. 



XX. Bridgesiani. 

 One species. 97. P. Bridgesii. 



1. P. fruticosus (Pursh) Greene. Suffruticose, 2-10 dm. high; leaves 

 spatulate, mostly obtuse, usually serrulate, 2-3 cm. long, the upper ones of the 

 flowering branches smaller, ovate, sessile; calyx about 1 cm. long, densely glandu- 

 lar-hirsute; sepals lanceolate, acutish; corolla about 3 cm. long, purple. Hills and 

 mountain sides: Alta. — Mont. — Ida. — Wash. — B.C. Submont. — Mont. Jl-Au. 



2. P. ellipticus Coult. & Fisher. Perennial, with a procumbent subter- 

 ranean woody stem; branches erect, minutely puberulent, 7-20 cm. high; leaves 

 firm, broadly elliptic or rotund, the lower short-petioled, distantly serrulate or 

 entire; calyx densely viscid-pubescent, 10-12 mm. long; lobes lanceolate, atten- 

 uate; corolla violet-purple, 3-3.5 cm. long, strongly ventricose; anthers white- 

 hairy. Mountains: Ida. — Mont. — Alta. Mont. — Subalp. Au. 



3. P. Menziesii Hook. Densely matted s'lffrutescent perennial; branches 

 1-1.5 dm. high, ascending, puberulent; leaves short-petioled, obovate or broadly 

 spatulate, more or less dentate, thick and leathery; calyx abolit 8 mm. long, 

 sparingly viscid; lobes lanceolate, acutish or obtuse; corolla purple, 2.5 cm., 

 rarely 3 cm. long. High mountains: B.C. — Wash. — Alta. Subalp. — Alp. Je-Au. 



4. P. crassifolius Lindl. Low shrub, 5-15 dm. high; leaves petioled, gla- 

 brous, 2-5 cm. long, the upper floral ones much reduced, lanceolate or hnear; 

 calyx fully 1 cm. long, densely glandular-hirsute; corolla lilac-purple, pinkish 

 at the base, about 3 cm. long, very slightly ventricose. Mountains: Wash. — 

 Wyo. — -Mont. Submont. — Mont. Je-Au. 



5. P. Scouleri Dougl. Low shrub, 2-5 dm. high; leaves short-petioled, 

 2-3 cm. long, the upper lanceolate and somewhat reduced; calyx sparingly glandu- 

 lar; corolla lilac-purple, 3.5-4 cm. long. Mountains: B.C. — Ida. — n Calif. Sub- 

 mont. Je-Au. 



6. P. Lyallii A. Gray. Perennial, with a woody caudex; stems about 3 dm. 

 high, glabrous or nearly so; leaves sessile, lanceolate to narrowly linear-lanceo- 

 late, sparingly denticulate, 5-10 cm. long; calyx glandidar-hirsute ; lobes lanceo- 

 late, acute to attenuate. Mountains: B.C. — Ida. — Mont. — Alta. Submont. — 

 Mont. Je-Jl. 



7. P. linearifolius Coult. & Fisher. Perennial, with a woody caudex; 

 stems 2-3 dm. high, grayish pubescent; leaves linear or linear-lanceloate, attenu- 

 ate, 2-7 cm. long, entire or minutely denticulate; calyx glandular; lobes Unear- 

 lanceolate, attenuate; corolla hght purple. Granite ledges: Ida. — Mont. Sub- 

 mont. Jl. 



8. P. montanus Greene. Perennial, with a cespitose caudex; stems about 

 3 dm. high, cinereous-puberulent ; leaves cinereous-puberulent, sessile, saliently 

 dentate, 1-4 cm. long; calyx about 1 cm. long, densely glandular; lobes lanceolate, 

 acute; corolla about 3 cm. long, pink-pm-ple, only slightly ventricose. (?) P. 

 Woodsii A. 'Neis. Mountains: Ida. — Mont. — Wyo. Mont. — Subalp. Jl-Au. 



9. P. strictus Benth. Stem strict, glabrous or nearly so, 2-5 dm. high; 

 basal leaves spatulate or oblanceolate, 5-10 cm. long; cauline leaves narrowly 

 linear-lanceolate or hnear, glabrous; calyx 4-5 mm. long; corolla 3 cm. long. 

 Hills: Wyo.— N.M.— Utah. Submont.— Mont. Je-Au. 



10. P. strictiformis Rydb. Stems 3-5 dm. high, glabrous and strict, simple; 

 basal leaves petioled, 5-10 cm. long, oblanceolate, obtuse, glabrous and slightly 

 glaucous; stem-leaves sessile, lanceolate, acuminate, 4-8 cm. long; corolla about 

 2.5 cm. long. Hills and plains: Colo. Submont. — Mont. Je-S. 



11. P. comarrhenus A. Gray. Stem 2-4 dm. high, glabrous or puberulent 

 below; basal leaves petioled; blades oval, spatulate or oblanceolate, 5-10 cm. 

 long, finely puberulent; stem-leaves oblanceolate or linear; calyx-lobes ovate, 

 4-5 mm. long, short-acuminate; corolla 2.5-3 cm. long, ventricose, but less so 

 than in P. strictus. Dry hills: Utah — Colo. Submont. — Mont. Je-Jl. 



