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NECKERA PENNATA.
Feather-like Neckera.
C l a s s a n d O i i d e i i CRYPTOGAMIA MUSCI, L in n — N a t . O r d . MUSCI,
Juss. De Cand. Hook. &c.
GEN ERIC c h a r a c t e r .
Seta lateralis. Peristomium duplex; ext. e dentibus l6 , erectis, liberis ; int. c
ciliis lotidem cum extcrnis alternantibus, (H ook.)
Seta lateral. Peristome double; outer one of 16 erect, free teeth; inner one
of as many ciliary processes, placed alternately with the outer teeth.
s p e c i f i c c h a r a c t e r .
N eckera p e n n a ta ; caule decumbente, ramoso; foliis bfariis, ovato-lanceolatis,
transversim undulatis, apice serralato ; theca ovata, subsessilis, perichæti»
immersa.
N. stem decumbent, branched; leaves bifarious, ovato-lanceolate, transversely
undulate, serrulate at the point ; theca ovate, subsessile, concealed by
the perichætial leaves.
N eckera pennata, Hedw. St. v. S. t. IQ.—Ejusd. Sp. Muse. p. 200.— Web. et
Mohr, Bot. Tasck. p. 23,9.—De Cand. Fl. Franç. ed. 3. v. 2. p. 543.—
Ejusd. Syn. p. 111.—Schultz, Fl, Starg. p. 306.—Schwaeg. Suppl. 2. p. 144.
—Mich. Fl. Am. Bor. v. 2. p. 307— Moug. et Nestl. St. Exsicc. No. 146.
—Brid. Muse. Recent, v. 2. pars. 2. p. 2 Ejusd. Sp. Muse, pars 2. p. 23.
—Punch, Deutschl. Moose, p. 52— ■Schwaeg. in Frankl. Journey to Polar
Sea, p. 756.
H y p n u m p e n n a t u m , Hoffm. Fl. Germ. 2. p . 5 7 .
F o n t i n a l i s p e n n a t a , Linn. Sp. PI. p . 1 5 7 1 .
S p h a g n u m c a u l i f e r u m e t r a m o s u m , f o l i i s c r i s p i s , & c . Hall. Helv. 96. t . 3.
S p h a g n u m p e n n a t u m , u n d u l a t u m , & c . Dill. Hist. Muse. p . 2 5 0 . t . 3 2 . f . 9,
H ab. On trunks of trees. Near Forfar, Mr D rummond; rare.
Stems decumbent, rigid, filiform, producing numerous branches at right
angles to itself, which are 1-3 inches long, and irregularly pinnate with
smaller ones, frequently much attenuated at their extremities. Leaves
rather bright green, bifarious, imbricated, spreading, some few erect
and closely adpressed; ovato-lanceolate, serrulate at the apex, transversely
undulate, nerve none or very short and indistinct : perichætial
leaves lanceolato-acuminate, imbricated, nerveless. Theca ovate, reddish-
brown, furnished with an extremely short seta, immersed among the perichætial
leaves. Lid paler than the theca, convexo-conical, slightly and
obliquely rostrate. Outer peristome of I6 lanceolato-subulate nearly colourless
teeth, with transverse bars, which project into angles on each
side ; Inner peristome o( 16 slender jointless processes, not half the length
of the outer teeth.