800 SCROPHULARIACEAE 



yellowish, about 2 cm. long; galea 11-12 mm. long; lip erect, 5 mm. long, with 

 rounded crenulate teeth. In lowland, among bushes: B.C. Calif. Utah 

 Colo. Alta. Submont. Subalp. Je-Au. 



10. P. montanensis Rydb. Stem 3-6 dm. high, glabrous; leaves similar 

 to those of the preceding, glabrous; calyx about 8 mm. long, its lobes subulate; 

 corolla 15-18 mm. long, purplish, except a yellow spot on the lip; galea 8 mm. 

 long; lip 4 mm. long, 3-lobed. Mountains: B.C. Wash. Wyo. Alta. Sub- 

 mont. Mont. Je-Au. 



11. P. Grayi A. Nels. Stem 5-20 dm. high, glabrous or pubescent above; 

 leaves 2-6 dm. long, somewhat pubescent, especially when young; divisions 

 lanceolate, often 5-7 cm. long, with triangular dentate lobes; spike 2-4 dm. long; 

 bracts lance-linear, about equalling the flowers; calyx about 1 cm. long, villous- 

 puberulent, its lobes lance-linear; corolla nearly 3 cm. long; galea 12-15 mm. 

 long, cucullate; lip 1 cm. long with broad rounded lobes. P. procera A. Gray, 

 not Adams. Mountain woods: N.M. Wyo. e Utah. Mont. Subalp. Jl-Au. 



12. P. cystopteridifolia Rydb. Stem 2-4 dm. high, purple-tinged; leaves 

 5-15 cm. long, glabrous; divisions lanceolate, about 1 cm. long, incised and ser- 

 rate; bracts lanceolate, long-acuminate; calyx densely villous, nearly 1 cm. long, 

 its lobes lanceolate; corolla over 2 cm. long, dark reddish purple; galea nearly 

 1 cm. long, arcuate, cucullate; lip about 7 mm. long, with rounded lobes. P. elata 

 Pursh, not Willd. P. cystopterides Clements. Mountains: Mont. Wyo. Mont. 



Subalp. Jl-Au. 



13. P. scopulorum A. Gray. Stem 1-2 dm. high, glabrous or villous above; 

 leaves 4-8 cm. long, divisions lanceolate 3-5 mm. long, dentate; spike short, 

 3-5 cm. long; bracts lanceolate, arachnoid-villous ; calyx 8 mm. long, arachnoid- 

 villous, its lobes subulate-triangular; corolla purple, 15-18 mm. long; galea over 



1 cm. long, arcuate and cucullate at the apex. Mountains: Colo. Subalp. Alp. 

 Ji. 



14. P. lanata Willd. Stem densely lanate; leaves 2-3 cm. long, glabrous, 

 blackening in drying; divisions oblong, crenate, 1-2 mm. long; spike dense, 3-5 

 cm. long; calyx about 7 mm. long; lobes oblong; corolla reddish purple or rose- 

 colored, about 2 cm. long; galea about 7 mm. long; lip almost as long, deeply 

 3-lobed, with rounded lobes. Arctic-alpine situations: Greenl. Lab. Can- 

 adian Rockies Alaska; Eurasia. Alp. Je-Jl. 



15. P. Oederi Vahl. Stem 1-1.5 dm. high, glabrous; leaves glabrous, 3-6 

 cm. long; divisions broadly oblong to oval, dentate, 3-5 mm. long; spike more 

 lax, 3-10 cm. long; calyx 8-12 mm. long, slightly more deeply cleft in front; 

 lobes lanceolate; corolla 18-22 mm. long, }^ellowish, with purple-tinged galea, 

 which is about 8 mm. long; lip deeply 3-cleft, with rounded lobes. P. versicolor 

 Wahl. Arctic-alpine situations: Alaska Mont.; Eurasia. Alp. Jl-Au. 



16. P. flammea L. Stem glabrous, 3-10 cm. high; leaves darkening in 

 drying, 2-6 cm. long; divisions oblong or oval, crenate, 3-5 mm. long; spike 2-5 

 cm. long, with almost erect flowers; calyx about 8 mm. long; lobes lanceolate; 

 corolla about 15 mm. long, citron-yellow, with dark purple or crimson galea, 

 which is about 6 mm. long. Arctic-alpine situations: Greenl. Lab. Canadian 

 Rockies -Alaska; Eu. Alp. Je-Au. 



17. P. canadensis L. Stems 1.5-4.5 dm. high, more or less pubescent, or 

 glabrate below; leaves 7-13 cm. long, more or less pubescent; lobes oblong, obtuse, 

 incised and dentate; spike 12 dm. high; the lower bracts foliaceous; calyx 

 oblique, deeply cleft on the lower side; lobes minute, triangular; corolla yellow 

 or reddish, 2-2.5 cm. long; galea nearly 1.5 cm. long, arcuate, beakless, but with 



2 teeth near the apex; lip about 8 mm. long, 3-lobed. Woods and thickets: N.S. 

 -Fla N.M. Colo. Man.; Mex. Submont. Mont. My-Jl. 



18. P. lanceolata Michx. Stem glabrous or nearly so, 3-10 dm. high; leaves 

 often opposite, lanceolate, 5-13 cm. long; lobes oblong or ovate, obtuse, crenate- 

 dentate; spikes 5-10 cm. long; calyx about 1 cm. long, cleft above and below, 

 the two lobes somewhat foliaceous and crenate; corolla 2-2.5 cm. long, yellow, 

 sometimes ringed with rose; galea 12-14 mm. long, arcuate, truncate at the 



