SCROPHULARIACEAE. 325 



In moist places in woods, from the mouth of the Columbia River to Cali- 

 fornia. 



Mimulus moschatus Dougl. Musk Plant. Perennial, villous and shiny 

 viscid, musk-scented; stems weak, spreading, ascending or erect, 10-40 cm. high; 

 leaves oblong-ovate, denticulate, 2-5 cm. long, all petioled; peduncles shorter 

 than the leaves; calyx tubular-prismatic, 8-12 mm. long, the unequal teeth 

 acute; corolla pale yellow, spotted in the throat, about 2 cm. long. 



Common in moist places. 



Mimulus langsdorfii Donn. Perennial by short stolons, erect or decum- 

 bent, glabrous or puberulent, 15-60 cm. high, or depauperate plants much 

 smaller and dying after blooming; leaves several-nerv-ed from the base, ovate, 

 obtuse or acute, rounded or subcordate at base, the lower long-petioled and 

 often with ragged lobes at base, the upper short-petioled or sessile; floral 

 leaves often cuneate; flowers in a raceme, the pedicels as long as or shorter than 

 the flowers; cal>-x in fruit 5-angled and inflated, the upper lobe longest, the 

 others turned toward it, all much shorter than the tube; corolla yellow, hairy 

 and often spotted in the throat, usually 2-3 cm. long, the tube exceeding 

 the cal>^. 



Ven,- common in moist places and exceedingly variable. M. hirsutiis 

 Howell and M. grandiflorus Howell seem to lack any satisfactory' differential 

 characters. 



Mimulus scouleri Hook. Perennial, stoloniferous, glabrous; stems erect, 

 30-60 cm. high; leaves oblong-lanceolate, obtuse, denticulate, shining, 2-5 

 cm. long, the lower ones petioled, the upper broader, ovate, sessile; calyx cam- 

 panulate, the teeth triangular, obtuse; corolla yellow, about 3 cm. long. 



Muddy banks of the Columbia River near its mouth. 



Mimulus alpinus (Gray) Piper. Glabrous or nearly so; stems weak and 

 often densely matted, leafy to the top, 5-10 cm. high, mostly 1-flowered; 

 leaves ovate, nearly sessile, entire or slightly denticulate; corolla 2-3 cm. long. 



Abundant on wet cliffs and along rivulets at high altitudes in the moun- 

 tains. 



Mimulus implexus Greene. Tufted perennial with slender fleshy root- 

 stocks, glabrous up to the inflorescence; stems 15-30 cm. high; leaves all 

 cauline, 3-5 pairs, ovate, sessile, sparsely dentate, 3-ner\'ed, 2-4 cm. long; 

 inflorescence puberulent and viscid; calyx campanulate, angled, purple-dotted, 

 the teeth triangular, the upper one largest; corolla pale yellow, bearded and 

 purple-dotted in the throat. 



Along alpine rivulets at about the limit of trees, rare in our limits. 



455. DIGITALIS. 



Tall herbs with alternate or scattered entire or toothed leaves; 

 flowers showy, in racemes; calyx 5-parted, the lobes often folia- 

 ceous; corolla with a somewhat inflated tube and a short scarcely 

 spreading limb, declined; stamens 4, didynamous, included in 

 the corolla. 



Digitalis purpurea L. Foxglove. Pubescent; stems stout, 60-120 cm. high; 

 leaves ovate or ovate-lanceolate, acute, dentate; flowers in a long raceme, 

 drooping; corolla purple or white, 3-5 cm. long, spotted within. 



Introduced from Europe. 



