ae M I 
2.P.neckeroideum Schimper. ic 
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. Ewr. Austria: Breidler, com. Warnstorf. 
IL. Eu-Plagiothecium. x 
A. Leaves gen. large. Capsule large more or less oblique or 
curved; lid rostellate-rostrate or r. obtuse; pedicel long. f 
à. Leaves distinctly decurrent; costa short double or indistinct. 
3.P.denticulatum L. — Hypnum L.; Plagiothecium Br. eu 
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 subcylindrie; lid not rostellate. Monoecious | 
us. fruiting. --- Logs and rocks, common. Eur. Sweden etel. 
Amer. Can.: Macoun. 
* P.subfaleatum Austin; Sulliv. icon. musc. 
Leaves less decurrent, sinuolate above, sometimes subfalcate. 
Capsules unknown. — Rocks r. Amer. U. S: Austin, com. 
Macoun. 
4.P.silvatieum L. — Hypnum L.; Plagiothecium Br. eur. 
Leaves 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, Switzerl. 
Amer. Can.: J. Macoun. Alaska: J. M. Macoun. 
5.P.Roesei Hampe — Hypnum Hampe; Plagiothecium Schimp. 
syn.; P. Sullivantie 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. 
b. Leaves less distinctly decurrent; costa gen. indistinct, 
sometimes thick and simple but very short. 
6.P.brevipungens Kindb. cat. Canad. m 
LI 
