232 ONAGRACE^. Epilobibm. 



p. 146 ; Hool(. fl. Bor.-Am. 1. p. 205 ; Torr. ^ Gr. fl. N. Am. 1. p. 487. E. spicatum, 

 Lam. diet. 2. p. 273 ; Torr. fl. 1. p. 391 ; DC. prodr. 3. p. 40 ; Beck, hot. p. 116. 



Stem 3-5 feet high. Leaves lanceolate or narrowly lanceolate, glaucous underneath, 

 nearly sessile, with minute very remote serratures or glandular teeth. Raceme often a foot 

 or more in length. Pedicels bracteate at the base, 4-8 lines long, slender, thickened up- 

 wards. Limb of the calyx cleft nearly down to the ovary : segments linear-lanceolat6, acute, 

 spreading, purplish. Petals more than half an inch long, of a light bluish purple. Stamens 

 unequal ; the 4 alternate ones shorter. Stigma with 4 narrow spreading lobes. Capsule an 

 inch or more in length, purplish-hoary. Seeds in two rows ; the pappus long and silky. 



Fields, and newly cleared land ; common. July. A very showy plant. 



*♦ Petals, stamens and style erecti stigma undivided. — Flowers muiU. 



2. Epilobium alpinum, Linn. Alpine Willow-herh. 

 Stem creeping at the base, usually marked with 2 pubescent lines ; leaves opposite, ovate 



or ovate-oblong, slightly petioled, denticulate, smooth ; stigma entire ; capsules mostly pe- 

 dicellate.— LiVin. sp. 1. p. 348; Bigel. fl. Bost.p. 147; Torr. ^ Gr. fl. N. Am. l.p. 488. 



Perennial. Stem 6-10 inches high, slender, simple. Leaves mostly ovate-oblong, the 

 lower ones opposite and about an inch long, upper ones alternate and smaller ; the margin 

 glandularly denticulate. Flowers small (about as large as in E. coloratum). Calyx cam- 

 panulate. Petals pale rose-color. Fruit pedicellate. 



High mountains of Essex county. July - August. A native also of Europe. 



3. Epilobium coloratum, Muhl. Purple-leaved Willow-herb. 

 Stem nearly terete, erect, much branched, more or less pubescent ; leaves mostly opposite, 



lanceolate, with fine tooth-like callous serratures, the veins often purplish ; petals 2-cleft ; 

 stigma clavate ; capsules on short pedicels, slightly pubescent. — Muhl. in Willd. enum. 1 , 

 p. 411 ; Nutt. gen. l.p. 250 ; Torr.fl. 1. p. 392 ; Bigel. fl. Bast. p. 147 ; Hook. fl. Bor.- 

 Am. 1. p. 206 ; Beck, hot. p. 116 ; Darlingt. fl. Cest. p. 239 ; Torr. ^ Gr. fl. N. Am. 1. 

 p. 489. E. tetragonum, Pursh, fl. I. p. 259 ; Ell. sk. 1. p. 445. 



Perennial. Stem 1-3 feet high, late in the season very much branched, a little pubescent 

 or nearly smooth, mostly of a purplish color ; the branches marked by four narrow lines, two 

 of them slightly elevated and decurrent from the midrib of the leaves ; the others intermediate, 

 pubescent. Leaves 3-6 inches long, acute, smoothish, marked with very minute roundish 

 and narrow dots. Flowers numerous, terminating the branchlets, 2-3 lines in diameter. 

 Sepals lanceolate, rather shorter than the corolla. Petals pale purple, or sometimes nearly 

 white. Stamens unequal. Style scarcely included. Capsule about 2 inches long when mature. 



Wet thickets ; common, except in the western part of the State, where I have not found it. 

 July - August. Differs from E. tetragonum, which it much resembles, in its round stem, 

 larger flowers, and more deeply cleft petals. 



