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ORTHOTMCHUM e ü p in c o l a .
Funck's Rock Orthotrichum.
C l a s s a n d O r d e r CRYPTOGAMIA MUSCI, Lirm— Sxi:. O r d . MUSCI,
De Cand. Hook. &c.
G EN ERIC CHARACTER.
Sela terminalis. Peristomium plerumque duplex ext. e dentibus 16 per paria
approximatis ; int. e ciliis 8-16 vel nullis. Calyptra mitriformis. Colu-
jnella non capitata.
Seta terminal. Peristome mostly double; ext. one of 16 teeth, approaching
in pairs; int. one of 8-16 ciliary processes, or wanting. Calyptra mitriform.
Columella not capitate.
S PE C IF IC CHARACTER.
O r t h o t r i c h u m rupincola ; J òE ì erectis, rigidis, late lanceolatis; theca sub-
immersa, apicem versus striata; operculopiano, rostrato; peristomio e dentibus
16, et ciliis 8, calyptra valde pilosa.
O. leaves erect, rigid, broadly lanceolate ; theca somewhat immersed, striate
towards the mouth ; lid plane, rostrate ; peristome o f I 6 teeth, and 8 ciliary,
processes ; calyptra very hairy.
O r t h o t r i c h u m rupincola. Punch, Deutschl. Moose, p. 35.~—Grev. Fl. Edin.
p. 249.—Hook, et Tayl. Muse. Brit. ed. 2. MSS.
H a b . Rocks. King’s Park, Edinburgh, Mr W a l k e r A r n o t t . Banks of
the river Clyde, Mr M. S t a r k e . Walls near Forfar, abundantly, Mr
D r u m m o n d . Auchindenny woods ; Castle Hill, Stirling, abundant ; rocks
and stone-waRs about Callander and Lochearn-head, frequent. May to
July.
Plant tufted, of a brown or even blackish colour, except the summits of the
branches. Stems half an inch to 2 inches in length, branched, ascending,
sometimes almost horizontal. Leaves rigid, erect, carinate, broadly
lanceolate, with a strong nerve reaching to the point, the margin entire,
recurved. Theca somewhat immersed, with a very short seta, ovate,
reddish-brown, even, except near the mouth, where it is striate. Peristome
of 16 spreading, distinct teeth, not arranged in pairs, marked with
a longitudinal line, and frequently more or less lacunose or perforated
towards the apex, or even slightly bifid. Ciliary processes 8, arising from
the side of every second tooth. IJd reddish, fiat at the base, with a
straight beak. Calyptra widely campanulate, fulvous-yellow, very hairy.