Vor. II.] EVENING-PRIMROSE FAMILY. 483 
4. Epilobium palustre IL. Marsh or 
Swamp Willow-herb. (Fig. 2571.) 
Epilobium palustre L. Sp. Pl. 348. 1753. 
Epilobium oliganthum Michx. F1. Bor. Am. 1: 223. 1803. 
Erect, slender, usually simple, 6-18’ high, peren- 
nial by subterranean shoots, canescent above with in- 
curved hairs. Leaves mostly opposite, sessile, oblong, 
or lanceolate-oblong, obtuse or subtruncate at the 
apex, 1/-2’ long, 1’/’-214’’ wide, erect or ascending, 
distinctly veined; flowers few in the upper axils, pink 
or whitish, usually nodding at first, 2’’-3/’ broad; 
stigma entire or nearly so; fruiting peduncles slender; 
capsules 1/-2’ long, slightly more than 14’ thick, 
canescent; seeds about '%4’’ long, a little papillose, 
translucent, the apex scarcely narrowed; coma pale. 
In bogs, New Brunswick to Alaska, south to the White 
Mountains, Ontario, Colorado and Washington. Also in 
Europe and Asia. Summer. 
5. Epilobium lineare Muhl. Linear-leaved Willow-herb. (Fig. 2572.) 
f Ap e\ Epilobium lineare Muhl. Cat. 39. 1813. 
\\ 1, We y ‘\ | \ £ptlobium palustre var. lineare A. Gray, Man. Ed. 
iN WY, ; i 2,130. 1856. 
Vs ay, 
Slender, erect, canescent throughout with in- 
curved hairs, 1°-2° high, at length much branched, 
perennial by subterranean shoots. Leaves linear 
or linear-lanceolate, mostly short-petioled, oppo- 
site or alternate, erect or ascending, acute at both 
ends, entire or very nearly so, 1/-2’ long, %4//-2/’ 
wide, the veins obscure; flowers few or numerous 
in the upper axils, erect, pink or whitish, 2//— 
4’ broad; stigma entire or slightly notched; pedi- 
cels mostly slender; capsules about 2’ long, finely 
canescent; seeds less than 1/’ long, slightly papil- 
lose, the coma dingy. 
Vi, 
In swamps, New Brunswick to Delaware, west to 
British Columbia, the Indian Territory and Wyoming. 
July-Sept. Sometimes produces bulblets near the 
base of the stem, 
6. Epilobium strictum Muhl. 
Downy or Soft Willow-herb. 
(Fig. 2573.) 
Epilobium strictum Muhl. Cat. 39. 1813. 
Epilobium molle Torr. Fl. U. S. 1: 393. 1824: 
Not Lam. 1805. 
Erect, usually much branched, 1°-3° high, 
densely pubescent with whitish somewhat 
spreading hairs, perennial by subterranean 
shoots. Leaves sessile, ascending, broader 
than those of the preceding species, short- 
lanceolate, obtuse or obtusish, 9/’-20’’ long, 
2//-4/’ wide, alternate or opposite, mostly en- 
tire, evidently veined; flowers in the upper 
axils, pink or whitish, about 2’” broad; stigma 
entire or nearly so; capsules 2//-3/’ long, 
nearly 1/’ thick, short-peduncled, canescent; 
seeds obconic, papillose; coma dingy. 
Bogs, Maine to western Ontarioand Minnesota, 
south to Virginia and Illinois. July-Sept. 
