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2.P.neckeroideum Schimper. 



Leaves as in the last but distant long-decurrent; nearly all 

 cells narrow-linear exc. the short and large alar and lowest 

 basal. Capsule not striate; pedicel long. Stem more divided, 

 branchlets thin flagelliform. Tufts dense green. Habit of 

 Neckera crispa. — Shady humid places near waterfalls in woods 

 of subalp. region r. Eur. Austria: Breidler, com. Warnstorf. 

 II. Eu-Plagiothecium . 



A. Leaves gen. large. Capsule large more or less oblique or 

 curved; lid rostellate-rostrate or r. obtuse; pedicel long. 



a. Leaves distinctly decurrent; costa short double or indistinct. 

 S.P.denticulatum L. — Hypnum L.; Plagiothecium Br. eur. 



Leaves long-decurrent gen. suboblong obtusate, sometimes 

 short-pointed, us. green; lower alar cells of the decurrent part 

 very dilated, upper alar not well-defined, the others oblong- 

 lanceolate. Capsule subcylindric; lid not rostellate. Monoecious 

 us. fruiting. — Logs and rocks, common. Eur. Sweden etc.! 

 Amer. Can.: Macoun. 

 * P.subfalcatum Austin; SuUiv. icon. muse. 



Leaves less decurrent, sinuolate above, sometimes subfalcate. 

 Capsules unknown. — Rocks r. Amer. U. S.: Austin, com. 

 Macoun. 

 4.P.silTaticmn L. — Hypnum L.; Plagiothecium Br. eur. 



Ijcaves long-decurrent ovate-lanceolate gradually narrowed to 

 a subulate point, us. dark green or olivaceous; cells as in the 

 last. Capsule subcylindric; lid rostrate. Dioecious r. fruiting. 

 — Rocks, less common. Eur. Sweden, Norway, Germany, Svpitzerl.! 

 Amer. Can.: J. Macoun. Alaska: J. M. Macoun. 

 o.P.Roesei Hampe — Hypnum Hampe; Plagiothecium Schimp. 

 syn.; P. SuUivantiaj Schimp., Hypnum Sull. icon. m. 



Leaves smaller than in the last, short-decurrent suboblong 

 obtusate or short-acuminate, abruptly tapering to a short fili- 

 form often curved point, us. yellowish or bright green; lowest 

 cells wide, alar often well-defined, the others sublinear-lanceolate. 

 Capsule subcylindric nearlj' straight; lid rostrate-rostellate. Tufts 

 very dense. Dioecious, less often fruiting. — Sand}' or clayey 

 ground. Eur. r. Sweden, Switzerl.! France: Husnot. Amer. not 

 r. Can.: Macoun; Moser; VVaghorne. U. S.: Roell; Sullivant, com. 

 C. Mueller. 



b. Leaves less distinctly decurrent; costa gen. indistinct, 

 sometimes thick and simple but very short. 

 S.P.brevipungens Kindb. cat. Canad. m. 



