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HYPNUM SALEBROSUM.
Smooth-stalked shining Feather-moss.
C l a s s a n d O r d e r CRYPTOGAMIA MUSCI, U n n— S a t . O r d . M U S C I , J u s s . f c.
GENERIC c h a r a c t er .
Seta lateralis. Peristomium duplex: ext. e dentibus 16: int. membraiia plicata, ■
\ 6-laciniata, ciliis allernantibus. Calyptra dimidiata.—H o o k .
Fruitstalk lateral. Peristome double; the outer one of 16 te e th ; the inner
one of a plicate membrane, cleft into If) segments, with ciliary processes
between them. Calyptra dimidiate.
s p e c if ic ch a r a c t er .
H y pn um s a le b ro sum ; caule decumbente, subpinnato ml vage ramoso ; foliis
erectiusculis, lanceolatis, longe acuminatis, siriatis, apicem versus serrulatis,
nèrvo ultra medium evanescenti; seta Iwvi; tlieca cernua, opérenlo acute conico.
H. stem decumbent, somewhat pinnate or irregularly branched ; leaves
néarly erect, lanceolate, with a long acumination, striate, serrulate toward
the apex, the nerve disappearing beyond the middle ; fruitstalk
smooth ; capsule cernuous, the lid acutely conical.
H y p n um salebrosum, Hoffm. FI. Germ. 2. p. 74-— Web. Mohr, Tasch.
p. 312.—Schwaegr. Suppl. I. pt. 2. p. ^Sf.-A-Moug. et Nestl. St. Exsicc.
No. 428.—Funck, Detdschl. Moose, p. 60. t. 42.—Drummond, Musei, Scot.
V. 2. No. 68.
H y pn um plumosum, Hedni. St. vol. 4. t. 15. exclvtd. synon.
H ab. Rocks, walls, and on the groiind. Near the Loch of Forfar, Mr
D rummon d.
Stems growing in rather dense masses, decumbent, 2-6 inches long, irregularly
branched, the branches erect, set with numerous ramuli, either in
an irregular or somewhat pinnate manner. Leaves numerous, shining
green, nearly erect, lanceolate, with a long, almost hair-like acuihina-
tion, the acuminated portion only, subáerrulate : towards the base, they
are furnished with two principal striae ; nerve disappearing above halfway
up. Perichcetial leaves somewhat spreading. Fruitstalk aboUt three-
fourths of an inch in length, smooth. Capsule cernuous, shortly ovate,
dark red, the lid acutely conical. Peristome : outer one of 16 red teeth,
becoming paler at their extremity ; inner one of a meitlbrane cleft into
l6 lacunose segments, with alternating filiform processes as long as the
segments.
V o li. iV.