490 ONAGRACE^. Epilobium. 



species, but they also exist in many others, as well as in Oenothera and 

 Ludwigia. This species is very nearly allied to E. tetragonuni. 



^'11. E. molle (Torr.) : clothed with a very soft and dense velvety pubes- 

 cence ; stem terete, strict, at length much branched above ; leaves alternate 

 and opposite, crowded, sessile, lanceolate or oblong-linear, rather obtuse, 

 mostly entire; petals deeply emarginate, twice the length of the calyx; 

 stigma large, turbinate-clavate ; capsules elongated, on very short pedicels. — 

 Torr..' fl. 1- JJ. 393, not oi Lam. E. strictum, Muld. cat. ; ^'prtng. syst. 2. 

 p. 233; Beck, hot.jJ- 117. 



In sphagnous swamps, Western part of New York ! to New Jersey ! and 

 Pennsylvania. Sept. — (i) Stem at first nearly simple. Flowers larger than 

 in E. coloratum, pale purple or rose-color. Capsules about 3 inches long. — 

 A very distinct species. 



12. E. palustre (Linn.): stem terete, (at length) branched, clothed with a 

 minute crisped pubescence ; leaves lanceolate, rather acute, attenuate at the 

 base, nearly sessile, entire or obsoletely denticulate, the lower ones opposite ; 

 petals rose-color, about twice the length of the calyx ; stigma clavate ; cap- 

 sules pubescent, on short pedicels. — Linn. spec. \.p. 348; Engl. hot. t. 346; 

 Lehm. in Hook.fl. Bor.-Am. l.p. 207. 



/?. albifloru7n (Lehm. ! 1. c.) : stem slender, at first simple, minutely pubes- 

 cent; leaves linear, slightly denticulate; capsules canescent. — E. palustre 

 var. albescens, Walil. Jl,. Suec. 1. p. 234; Richards. ! appx. Franld. journ. 

 eel. 2. p. 12. E. oliganthum, Michx.! jl. 1. p. 223. E. rosmarinifolium, 

 Pursh! jl. 1. ]). 259. E. lineare, Muhl. cat. p. 39. E. squamatum, Nutt.! 

 gen. 1. p. 250; DC! I. c. E. Dahuricum, Fischer; DC. I. c. ex Lehm. 

 E. tenellum, densum, & leptophyllum? Raf. in Desv.jour. hot. : DC. I. c. 



In swamps, Labrador and Northern States ! P. In sphagnous swamps, 

 Northern parts of New York! Pennsylvania! and New England States! to 

 Arctic America! and Oregon! Aug. — 11 1 Stem 1-2 feet high, at length 

 much branched. — Dr. Richardson and Prof. Lehmann we think correctly 

 refer this plant to E. palustre. As commonly met with in Pennsylvania and 

 New Jersey, it differs from the European E. palustre only in its somewhat 

 narrower leaves ; the flowers being frequently rose-color. In deep sphagnous 

 swamps and more northern regions, it is a smaller plant, often unbranched, 

 with white or very pale rose-colored flowers. According to Lehmann, a 

 similar variety is found in Northern Germany. The base of the stem often 

 bears small scale-like bulbs, as observed by Nuttall. 



13. E. minutum (Lindl.) : stem erect or ascending, branching, puberu- 

 lent; leaves mostly alternate, elliptical-lanceolate, rather obtuse, nearly en- 

 tire, slightly pubescent; flowers minute, nodding before expansion; stigma 

 clavate, at length expanded and fimbriate ; petals (pale rose-color) obcordafe ; 

 capsules short, somewhat pedicelled, slightly arcuate, at length erect. Lindl. ! 

 in Hook.Jl. Bor.-Am. l.p. 207. Crossostigma Lindleyi, Spacli, Onagr. p. 84. 



? foliosum : leaves linear-spatulate, nearly glabrous, Avith smaller ones 

 fascicled in the axils; petals nearly white. — E. foliosum, Nutt.! ?nss. 



On moist rocks, Oregon, Menzies, Dr. Scolder! Douglas! Nuttall! 

 /?. Dry rocks, Oregon and the Rocky Mountains of California, Nuttall! — (T) 

 Stem 8-12 inches high, often branched from the base. Leaves small, rather 

 thick, with pellucid dots. Petals a little longer than the calyx. Capsules 

 about an inch long. 



. • 14. E. paniculatum (Nutt. ! mss.) : glabrous, or glandular-pubescent above ; 

 stem erect, slender, terete, dichotomous above ; leaves narrowly linear, ob- 

 scurely serrulate, acute, attenuate at the base, mostly alternate and lascicled; 

 the uppermost subulate ; flowers few, terminating the spreading filiform and 



