ONAGRACE^. (evemno-primuosi-: familv.) 177 



liiscont or nearly so, iisnnlly hrcoiiiiriG: 1 -rclloil and 1 -4-.';oo(lc(l. Socfls naked. 



— Leaves alternate, sessile. Flowers rose-color or white, rlmnf^in^ to reddish 

 in fadin-j, in wand-like sj)ikes or raeenies ; in our species quite small (so that 

 the name, from yavpos, siipnh, does not seem appropriate). 



1. G. biennis, L. So/l-hain/ or doirm/ {:i°-S° h\<;h); leaves oblonrj-lanceo- 

 Inle, acute, denticulate ; fmit oval or ohlonjr, nearlfi Sfssi/e, ribbed, downy. — 

 Dry banks, from New York westward and southward : common. Aug. 



2. G. filipes, Spaeh. Nearly smooth; stem slender (2° -4° high) ; /ea?'cs 

 liniar, mostly toothed, tajiering at the base ; branches of the panicle very slen- 

 der, naked ; fruit obovate-club-sliaj)ed, 4-angled at the summit, slender pedicelkd. 



— Open ]jlaces, Virginia to Ohio, Illinois, and southward. Aug. 



3. EPILOBIXTM, L. Willow-heub. 



Calyx-tube not prolonged beyond the ovary ; the limb4-cleft, deciduous. Pet- 

 als 4. Stamens 8: anthers short. Pod linear, many-seeded. Seeds with a tuft 

 of long hairs at the end. — Perennials, with nearly sessile leaves, and violet, 

 purple, or white flowers; in summer. (Name composed of ini Xo'iiov lov, viz. 

 a violet on a pod.) 



♦ Flowers hnrje in a lonrj spike or raceme : petals widely spreading, on claws, entire : 

 stamens and sli/le turned downicards : stii/ma of 4 lone/ lobes: leaves scattered. 



1. E. angustifdlium, L. (Great Willow-herb.) Stem simple, tall 

 (4° -7°); leaves lanceolate. — Low grounds, especially in newly cleared land: 

 common northward. — Flowers pink-purple, very showy. (Eu.) 



« * Flowers rather large, regular : petals obcordate : stamens and style erect: stigma 

 of 4 long linear lobes : leaves mostly opposite. 



2. E. HiRsijTL-.M, L. Soft-hair)', branching (3° -5° high); leaves lance- 

 oblong, serrulate ; flowers in the upper axils or in a leafy short raceme ; petals 

 rose-purj)le, 6" long. ^Spontaneous in waste grounds. New Bedford, Mass. 

 {T. A. Greene) and Roxbury (/). Mutray) ; and in a ravine near Albany, New 

 York (C. //. Peck). (Nat. from Eu.) 



» * Flouvrs small, corymhed or puniclcd : petals (mostly notched at the. end), sta- 

 mens, and style erect : stigma club-shaped, nearly entire : lower leaves opposite, 

 entire or denticulate. 



3. E. alpinum, L. Low (2'-G' high), nearly glabrous; stems ascending 

 from a stolonifcrous base, simple ; leaves elliptical or ovate-oblong, obtuse, nearly 

 entire, on short petioles ; flowers few or solitary, drooping in the bud ; petals 

 purple; pods long, glabrous. — Alpine summits of the White Mountains of 

 New IIami)shirc, and Adirondack Mountains, New York. (En.) 



Var. m^jUS, Wahl. Tiiller ; upper leaves more or less acute and toothed, 

 po.I glabrous or somewhat pubescent. (E. alsinifoliiim, Vill. E. origanifolium, 

 Lum.) —With the ty])ical form: alf-o upper Wisconsin and Michigan. (Eu.) 



4. E. pallistre, L., var. line^re. Fnct and slender (10-2° hi-h), 

 branched above, minutily luHiry-piilii.'niiil ; stem roundish ; hares narmu-li/ lanceo- 

 late or linear, nearly entire ; flower-buds somewhat nodding ; petals pur]tlisli or 

 white; pods hoary. (E. lineare, J/h/i/. E. .squauiatum, Xtitt.) — Bogs, N. 



12 



