i l l
JI .‘,4.
In moist [ilaccs on the ground. (Fr. Spring.)
Growing in small rather densely crowded patches
of pale green colour, with a faint tinge of purple.
Stems five to six lines long,
slender, thread-like,flexuous,
simple below, and usually
bare, simple above or once
or twice divided, with narrow
branches, usually erect,
sometimes procumbent, pale
77- yellowish green. Leaves
bifarious, alternate, more or less close, usually
a little imbricated, erect or rather spreading,
ovate, concave, cleft acutely from the apex, for
about one-fourth, into two equal, somewhat obtuse,
segments (fig. 77). Perichsetial leaves seven or eight,
increasing in size upwards to the insertion of the
calyx, where they are twice or thrice the length of
the cauline leaves, imbricated, oblong, subquadrate,
concave or semi-cylindrical ; at the apex deeply
notched, segments acute, sometimes divaricate.
Stipules small, plane and adpressed, or projecting
a little, ovate, cut by an acute sinus at the apex
into two sharp segments. Calyx a little attenuated
at the base, slightly narrowed above and
plicate, mouth small and toothed. Capsule brown,
quadrivalvular. Elaters bispiral.
Cephalozia fluitans, Nees.
Stem long, somet imes v e r y long, root ing by
numerous stout fiagella, floating in water,
branches all postical. Le a v e s distant, lax,
pallid, long and narrow, unde r - lea v e s constant
ly present, inflorescence c ladoca rpous ;
female bracts trist ichous, toothed at the base,
innermost embracing the perianth, which
latter is thin, linear-fusiform, trigonous.
Jungermannia Jluitans, Nees Syn. p. 129.
Lindbg. Sp. p. 76. Jungermannia Francisci,
Eng. Bot. t. 2569. Gymnocolea injlata v.
Jluitans, Dura. Hep. Eur. 65. Cephalozia
fluitans, Carr, and Pears. Exs. No. 178, a b c,
259, 2 60 ; Spruc e Cephaloz ia p. 50.
In the wettest part of bogs.
Dioicous, bright green, here and there rufous,
rarely rosy. Stems elongate, 2 to 3 inches, laxly
creeping, a little branched, rooting by rather short
thick flagella. Leaves assurgent, subsecund, distant,
inserted obliquely, oval ovate or oblong, now and
then rather cuneate at the base, a little concave,
bilobate at the apex J - f way (sometimes trilobate)
sinus narrow, acute, lobes unequal, postical largest,
lanceolate, rather obtuse, margin repand, cellules
rather large, hexagonal, stipules distant, adpressed
to the stem, three times shorter than the leaves, six
times as long as broad, linearbifid, laciniæ of unequal
length, margin i - 2 dentate. Flowers dioicous,
bracts tristichous, inner erect,' ovate, oblong, bilobed
to the middle, lobes acute, i - 2 dentate
at the base, outer three times smaller, unequally
bidentate, or falcate and entire. Perianth longer
than involucre, oval-cylindrical, trigonous at the
apex, mouth truncate, almost toothless. Capsule
pellucid, purplish, oblong, with four linear lanceolate
valves. Elaters bispiral. Spores minutely rough.