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2S29
P H ASCUM stenophyllum.
Narrow-leaved Phascum.
C R YP TO G AM IA Musci.
Gen. Char. Fruit-stalk terminal. Capsule closed
(lid persistent). Peristome none. Calyptra dimidiate,
sometimes campanulate.
Spec. Char. Stemless, with conferva-like branches.
Leaves linear-subulate, rigid, nearly entire,
nerved throughout. Capsule roundish sessile.
Calyptra campanulate.
Syn. Phase, stenophyllum. Voit. in Sturm Deutschl.
FI. Crypt, fasc. 14-. Bridel, Br. Un. v. 1. 30.
Phase, crassinervium {3. stenophyllum. Bruch and
Schimper, Bryol. Europcea, ?. t. 2.
F o u n d , very sparingly, on the borders of the Pool at
Mere, in Cheshire, with Phascum serratum, Sept. 1834.
A very minute species. Leaves erect, slightly turned to
one side, keeled, nerved to the summit, margin very obscurely
serrulate or entire ; perichaetial leaves larger than
the rest. Capsule immersed in the foliage, sessile, somewhat
elliptical and pointed. Calyptra seldom if ever laterally
torn, covering one third part of the capsule. Confer-
void branches shorter than in Phascum serratum, from
which it is distinguished by its very narrow rigid foliage,
which is not altered or crisped when dry.
It must be admitted that this moss approaches very closely
to the one figured in the admirably executed Bryologia
Europcea as Phascum crassinervium, but it by no means
corresponds with the one given under that name in Gre-
ville’s Scottish Cryptogamic Flora, t. 353, and not well with
the figure in Schwaegr. Supp. I. P . 1. t.2, which is intermediate
between the other two above-mentioned.—W. W.