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BRYUM DEMISSUM.
Small pyriform Bryum.
C l a s s a n d O r d e r CRYPTOGAMIA MUSCI, £ i r e » ._ N A T . O r d . MUSCI,
Juss. De Cand. &c.
G EN ERIC CHARACTER.
Seta terminalis. Peristomium duplex: ext. e dentibus 1 6 : int. membrana pli-
cata \ 6-laciniata, saepissime ciliis alternantibus. Calyptra dimidiata.—
(Hook.)
Seta terminal. Peristome double; the exterior of 16 teeth; the interior of
a membrane divided into 16 segments, mostly alternating with filiform
processes. Calyptra dimidiate.
s p e c i f i c CHARACTER.
B ry um d em issum ; caule perbrevi ramoso; foliis ovatis cuspidate-acuminatis,
reticulatis, neno excurrente; seta arcuata; theca curvato-pyrformi, pen-
dula— (Hook).
Br. stem very short, branched; leaves ovate, cuspidato-acuminate, reticulated,
the nerve excurrent; seta arched; theca curved and pyriform,
pendulous.
Bryum demissum. Hook. Musci Exot. v. 2. t. 99-
M e e s i a demissa, Hoppe et Hornsch. MSS.
T immia, nov. sp. Schmidt, MSS.
}-Jide Hook.
Bryum curvulum, Schleicher, MSS.
H ab. On Craig-Halleach in Breadalbane, and the neighbouring mountains.
Dr H ooker. In the same station, afterwards by Mr A rno tt . July—August.
Plant grow in g in small tufts. Stems 1-5 lines long, w ith a few simple
branches arising from th e ir base in a subfasciculate manner. Leaves
imbricated, slig h tly concave, yellowish-green, red d ish a t th e base, ovato-
acuminate, th e apex almost piliferous, m a rg in entire, re tic u la te d w ith
ra th e r large, oblong c ellu les ; nerve ra th e r strong, o f a red d ish colour,
e x current. Seta l _ | o f an inch in le n g th , rem a rk ab ly curved a t th e
top. Theca pendulous, oblong-pyriform, curved, yellowish-brown, w ith
a very small mouth n o t exactly situated a t th e apex. Operculum sh o rtly
conical. Ext. Peristome composed o f 16 a cum inated te e th , th e ir
lower h a lf o f a fine p in k colour. Int. Peristome o f c iliary processes,
irreg u la rly cancellated. Sporules g re en , globose, u n ited in threes.
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