482 ONAGRACEAE. 



Plants glandular-pubescent throughout, or only above. 



Densely glandular throughout; leaves sessile. 



Glandular-pubescent above; leaves petioled. 

 Leaves lanceolate or ovate, serrate. 



Leaves lanceolate, acute or acuminate. 



Seeds obconic, beakless; coma reddish. 



Seeds ellipsoid, short-beaked; coma white. 

 Leaves ovate, thin, obtuse. 



[Vol.. II. 



6. E. slrictum. 



7. E. paniculatum. 



8. E coloratum. 



9. E. adenocaulon. 

 10. E. Hornemanni. 



i. Epilobium hirsutum L,. Great Hairy 

 Willow-herb. (Fig. 2568.) 



Epilobium hirsutum 1,. Sp. PI. 347. 1753. 



Stout, branched, 2-4 high, softly hirsute-pubes- 

 cent, spreading by subterranean shoots. Leaves 

 lanceolate or oblong-lanceolate, usually opposite, 

 sessile and often clasping at the base, acute at the 

 apex, sharply serrulate, I'-tf long, 4 // -6 // wiilr, 

 thin, pubescent on both sides; flowers axillary, 

 erect, rose-purple, about i' broad; petals notclu-il, 

 pubescent at the base within; stigma deeply 4-lobed; 

 capsules stalked, 2 / -3 / long, about i" thick, pubes- 

 cent; seeds about W long, smooth; coma whitish. 



In waste places, eastern New England, central New 

 York, Ontario, and in ballast about the sea-ports. Ad- 

 vi-mivf from Europe. English names, Codlins-and- 

 cream, Fiddle-grass. June-Sept. 



2. Epilobium alpinum L,. Alpine Willow- 

 herb. (Fig. 2569.) 



Epilobium alpinum L. Sp. PI. 348. 1753. 



E. lactiflorum Haussk. OEst. Bot. Zeit. 29: 89. 1879. 



Slender, weak, glabrous or nearly so, 3 / -i2 / high. 

 Leaves thin, pale, petioled, opposite, or the upper al- 

 ternate, denticulate or entire, obtuse or obtusish at 

 the apex, narrowed at the base, 6 // -io // long, 2' ''-4" 

 wide; flowers few, axillary, nearly erect, white, 2"- 

 3" broad, petals notched; stigma nearly entire; cap- 

 sules slender-stalked, i / -2 / long, about %" thick, 

 glabrous; seeds smooth, narrowed into a beak; coma 

 whitish. 



Labrador to British Columbia, south to the White 

 Mountains of New Hampshire, Utah and Oregon. Also 

 in Europe. Summer. 



3. Epilobium anagallidifolium L/am. Pim- 

 pernel Willow-herb. (Fig. 2570.) 



Epilobium anagallidifolium Lam. Encycl. 2: 376. 1786. 



Low, usually tufted, 2 / -6 / high, resembling the pre- 

 ceding species but generally smaller. Stems commonly 

 pubescent in lines and nodding at the apex; leaves 

 oblong or narrowly ovate, entire or nearly so, obtuse 

 at the apex, narrowed at the base into a short petiole, 

 5"-io" long, i>^ // -2^ // wide; flowers few, axillary, 

 clustered at the apex, violet-purple, nodding, about 

 2/4" broad; stigma entire; capsules slender-peduncled, 

 glabrous, about i' long, l /t ff wide; seeds smooth, 

 short-beaked, about Yz" long; coma dingy-white. 



Labrador and through arctic America to Alaska, south 

 in the Rocky Mountains to Nevada. Also in Europe and 

 Asia. Summer. 



