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DICRANtJM S c h r e b e r i a n u m .
Schreber’s Dicranum.
C l a s s a n d O r d e r CRYPTOGAMIA MUSCI, i m n — N A T . O r d . MVSCl, J u s s .
De Cand. Hook.
G EN ERIC CHARACTER.
Seta terminalis. Peristomium simplex e dentibus l6 bifidis. Calyptra dimidiata.—
H o o k .
Seta terminal. Peristome simple, of l6 bifid teeth. Calyptra dimidiate.
S P E C IF IC CHARACTER.
D icranum Schreberianum; caule erecto, simplici; foliis undique divergentibus,
longe subulatis, basi ovato-dilaiatis undulatis amplcxicaulibus ; theca ovata
cerniia, struma instructa, operculo longe et oblique rostrato.
D. stem erect, simple ; leaves spreading on all sides, elongato-subulate, dilated
into an ovate form at the base, waved and amplexicaul : theca ovate,
cernuous, furnished with a struma ; lid long and obliquely rostrate.
D i c r a n u m Schreberianum, Hedrv. Sp. Muse. p. 144. t. S3, f. 6-10 Sturm,
Deutschl. Fl. cum icone.—Moug. et Nestl. Stirp. Crypt. Vog. No. 719—
Funcky Deutschl. MoosCy t. 21.
D ic r a n u m Schreberi Swartz, Muse. Suec. p. 37- t. 2.f d e Hedwig.
Bryum crispum, Schreb. Spicil. p. 79-
H ab. Moist argillaceous places, rare. Glen Tilt, Messrs H ooker, A rnott
and G reville.
Plant growing in a crowded manner. Stem simple, very erect, 2-6 lines
high. Leaves rather distant, bright green, patent, embracing the stem
with their sheathing bases, ovate, with a waved margin, and rather suddenly
attenuated into a very narrow long flexuose entire extremity; nerve
passing into the narrow portion, and there gradually disappe^ing about
half way up. Theca smooth, ovate, cernuous, fine red, provided with a
struma. Lid conico-subulate, the beak long and oblique. Peristome of
16 slender red teeth, cleft about half-way down.
This very interesting addition to the Bryology of Great
Britain, I have already alluded to in a former number. I t nill
be sufficient to mention here, that INIr W a l k e r A r n o t t
YOL. II.