94 SELECTED WESTERN FLORA 



1. EPILOBIUM. Willow-herb. 



Calyx tube scarcely, if at all, prolonged beyond the ovary; petals 

 4^ shading from violet to white; pod slender; seeds many, tufted 

 with downy hairs (a coma). Innocent perennial herbs with sessile 

 flowers. 



1. E. angustifdlium, (L.). Great Willow-heeb. 



Calyx tube not prolonged beyond the ovary; petals large, not notched 

 at the apex, reddish purple; stigma deeply 4-lobed; flowers in showy 

 terminal racemes. Common in newly burned ground, Man.-Alta. 



2. E. in611e, Torr. 



Erect, branched, 1-3 ft. high, densely pubescent; calyx tube slightly 

 prolonged beyond the ovary; petals notched at the apex; stamens and style 

 erect; stigma entire or nearly so; flowers small, pink, solitary, in the upper 

 axils. Wet places, local and not common. 



3. E. densum, Raf. 



Slender, erect, 1-2 ft. high, branched, minutely hoary-pubescent with 

 incurved hairs; leaves linear or nearly so, acute at both ends, opposite or 

 alternate, erect; flowers pink or white, small, erect, in the upper axils; 

 stigma entire or nearly so. (E. palustre, var. lineare, Gray.) Peat bogs 

 and wet places, Man.-Alta. 



4. E. paliistre, L. 



Decumbent, with n, tendency to root by prostrate branches, minutely 

 pubescent or glabrate; leaves thin, green, mostly opposite, oblong to lanceo- 

 late, somewhat spreading; flowers small, pink or whitish, few, in the upper 

 axils, usually nodding, at least when young. Bogs and wet places, Man.- 

 Alta. 



5. E. adenocdulon, Haussk. 



Erect, 1-3 ft. high, minutely pubescent, sometimes sticky; leayes ovate 

 to lanceolate, almost sessile, sparingly toothed; flowers pink, nodding at 

 first; seeds with a white coma. Moist ground, Man.-Alta. 



6. E. latifdlium, L. 



Erect, branched, 6-18 in. high, glabrate below, canescent above; leaves 

 ovate to lanceolate, sessile, those on the branches opposite; flowers perfect, 

 in leafy racemes; coma white. River valleys, Alta., and north and east to 

 Hudson Bay. 



2. (ENOTHERA. Evening Peimrose. 



Calyx tube much prolonged beyond the ovary, deciduous ; calyx 

 lobes 4, reflexed; petals 4; stamens 8; pod 4^valved, many-seeded; 

 stem leaves alternate; flowers yellow, white, or pink. 



