Epilobium.] ONAGRARIEJE. 157 



5. E. lanceola'tum, Sebast. and Maur. ; finely pubescent, leaves mostly 

 alternate petioled oblong-lanceolate toothed s buds inclined. 



Roadsides and stony places by streams, from Surrey to Cornwall, Monmouth, 

 Gloster ; Channel Islands ; fl. July-Oct. — Stolons autumnal, with spreading 

 rosulate leaves. Stem 1-3 ft., erect, branched, terete, pubescent, hairs short 

 recurved. Leaves l|-3 in., lowest opposite, petiole terminating in obscure 

 decurrent lines on the stem. Flowers J in. diam., many, pale rose. Stit/ma- 

 lobes short, spreading. Capsule 2-3 in., finely pubescent. — Distrib. From 

 Belgium southd., and eastd. to Asia Minor. 



** Stem often more or less 2-4.-anyled, or with 2-4 raised lines. Stigma oblique 

 clavate. 



6. E. ro'seum, Schreb. ; pubescent above, stem with 2 or 4 raised lines, 

 leaves petioled mostly alternate ovate-oblong narrowed above and below 

 toothed glabrous, buds inclined acuminate. 



Copses and moist places, Edinburgh to Kent and Cornwall, local ; rare in the 

 north ; ? Ireland ; fl. July- Aug. — Stolons autumnal, with loosely rosulate 

 leaves. Stem 1-2| ft., erect, brittle, much branched. Leaves 1§-2| in. 

 Flowers many, | in. diam., rose-red. Capsule 2-3 in., pubescent. — Distrib. 

 Europe, N. and W. Asia, Himalaya, N.W. America. 



7. E. tetrago'num, L. ; pubescent above, stem usually with 2 or 4 raised 

 lines, leaves sessile oblong- or ovate- or linear-lanceolate toothed, buds 

 erect acute. 



Wet places, from the Orkneys southd. ; ascends to 2,100 ft. in the Highlands ; 



Ireland ; Channel Islands ; fl. July-Aug. — Stem 1-2 ft., erect, brauched, 



rather tough, obtusely angled or with 2 or 4 raised lines or almost terete. 



Leaves 1-3 in., narrow, lower or all below the branches opposite, rarely 



slightly petioled, base decurrent. Flowers j-^ in., erect, rose-lilac. Pods 



2-4 in. — Distrib. Europe (Arctic), N. and S. temp, zones, Himalaya. 

 E. tetrago'num proper ; stolons autumnal with rosulate leaves, leaves 



linear-oblong or -lanceolate shining above, capsule 2-4 in! slightly 



incurved. 

 Sub.-sp. E. obsct'rum, Schreb. ; stolons aestival with few distant pairs of 



opposite leaves, leaves ovate-lanceolate not shining above, capsule 1-2 in. 



suberect or rather spreading. E, virgatum, Gren. and Godr. — The most 



common form ; ascends to 1,500 ft. in Derby. 



8. E. palus'tre, L. ; finely pubescent above, stem terete without raised 

 lines, leaves subsessile mostly opposite lanceolate from a cuneate base, 

 buds nodding obtuse, seeds fusiform, testa produced at the tip. 



Bogs and ditches, from Shetland southd. ; ascends to near 2,000 ft. in York- 

 shire ; Ireland; Channel Islands; fl. July-Aug. — Stolons sestival, sub- 

 terranean, filiform, scaly, bearing in autumn scaly buds. Stem 6-24 in., with 

 often two lines of pubescence. Leaves l|-2§ in., almost all opposite, flaccid, 

 spreading, scarcely toothed, tip narrowed but obtuse. Flowers horizontal, 

 J in. diam., rose-lilac. Capsule 2-2J in., pubescent. Seeds much narrower 

 than in all preceding species, with a distinctly produced testa. — Distrib. 

 N. temp, and Arctic zones, Himalaya.— Var. lir/ula'ta, Baker, with leaves 

 lanceolate faintly toothed, and seeds shorter, is a hybrid with obscurum. 



