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OHTHOTRICHUM pumilum.
D w a r f Bristle-moss.
ISOI.
CRYPTOGAMIA Musci.
Gen. Char. Ca p s . oblong, terminal. Outer f r in g e
o f 16 teeth : inner o f 8 or 16 bristles; or none.
V e i l angular, mostly clothed with erect hairs.
Spec. Char. Stem somewhat branched. Leaves ova-
to-lanceolate, revolute, spreading, beardless. Veil
naked. Each fringe o f eight teeth.
, Syn. Orthotrichum pumilum. Swartz. Muse. Suec. 42.
& 92. t. 4 . / . 9. Sm. F I . B r i t . 1264. D ic k s .
Crypt, fa s c . 4. 5. JVinck. v., 1 . 106. Turn. Muse.
I iib . 98.
G a t h e r e d at Copgrove, Yorkshire, by the Rev. Mr.
Dalton, whose specimens agree' precisely with one given by
Mr.Dickson. Mr. R. Brown first found this Orthotrichum
in Ireland.
It is one of the smallest of its genus, and grows on the
trunks of trees, bearing capsules in the spring. The colour
of the leaves is brighter and yellower than in others of the
same size; their form is ovato-lanceolate, with somewhat of
a point, but blunt, and not tipped with any hair. The edges
are entire, a little revolute. Capsules solitary, terminal,
nearly sessile, oblong, rather pear-shaped, olive-coloured, with
8 furrows. Veil striated, quite smooth, greenish-white, with
a straight brown summit. Lid with a little pale straight point.
Outer fringe of 8, not 16, broad, brown, spreading teeth;
inner of 8 very slender, hair-like, white, indexed bristles.