Genus 29. LIOCHLÆNA, Nees.
JimgeTmatiia, L. Sp. pi. 1 ed., 2, p. 1597 (1753); Hook. Brit. Ju n g . t. 28
(1810).
LiocMcena, Nees in G.L.N. Syn. Hep. p. 150 (1844).
Aplozia, Dum. Hep. Eur. p. 58 (1874),
Stems prostrate, with rootlets very long, pale or reddish,
slightly (laterally) branched, rarely flagelliferous. Leaves ovate-
oblong, sublingulate, apex rotundate or retuse, very rarely sub-
emarginate, slightly deeurved, antioal base shortly deourrent,
very slightly recurved; reticulation somewhat lax, subopaque.
Stipules absent. Inflorescence dioicous or paroicous. Female
flowers terminal. Bracts j. 1-2 pairs, similar to the leaves only
broader. Pistillidia 5-12. Perianth at first pyriform, afterwards
cylindrical, incurved, eplicate, apex abruptly rotundato-oonstricted,
mouth minutely ciliolate. Capsule highly exserted, dividing
down to the base into 4 valves, composed of two layers, inner
layer with semi-annular fibres. Elaters attached to the middle of
the valves, bispiral. Spores globose, minute, as broad as the
elaters. Perigonial bracts similar to the leaves, antical base turgid.
Antheridia 2-4.
Liochlæna lanceolata (Z.), Nees.
.Jungermania palustris m ininut repens fo liis subroUtndis densissimis loetè vireniibus,
Mich. Nov. pi. gen., p. 8, tab. 5, fig. 6 (1729).
Jungermania Iwnceolata, Linn. Sp. pi. 1 ed., 1597 (1753); Hook. Brit. Ju n g ,
t. 28 (1816).
Lioehlæna lanceolata, Nees in G.L.N. Syn. Hep. p. 150 (1844).
Paroicous or monoicous, J flowers usually immediately below
the ¥ bracts, sometimes on proper branohes which proceed from
below the perianth, densely cæspitose, small, pale or dark green
to a greenish-brown in colour. Stems dark brown, 30 cortical
cells, slightly darker tlian the inner ones, of equal size, about 12
in diameter, inner very clear, vacuous, walls thin but firm, dark ;
procumbent or suberect, simple or slightly ramose, branches
lateral, produced at right angles or ascending ; radiculose, rootlets
brownish-white, strong, long, ascending to apex of the stem.
Leaves close, horizontal or patent-divergent, obliquely inserted,
often projecting antioally from the stem, slightly decurrent at the
antical and postical base, oblong-oval or oblong-obovate, entire;
texture somewhat thin, epidermis smooth, cells roundish, near the
base elongate, lumen pellucid, with few chlorophyllose granules,
walls somewhat thin, two bands, trigones distinct. No stipules.
Bracts similar to leaves only a little larger and a trifle broader.
Bracteole absent. Perianth terminal, erect, somewhat curved,
composed of one layer of cells, similar to leaf-cells, but more
elongate, clavate-oylindrioal, smooth, apex depressed, plane, mouth
very small, contracted, oonioal, cells delicate, hyaline, with thni
walls, elongate-quadrate, about 20 rows, margin crenulate. Pistillidia
few, about 7, surrounding base of immature capsule. Calyptra
delicate, composed of one layer of cells. Capsule oval, spores
yellowish-brown. Perigonial bracts slightly lobulate. saccate;
antheridia 2-3, spherical, hearers short, composed of 4 rows of
cells.
Fruits spring.
DniENSioNS.-Stems from i to 1 inch long, '4 mm . d iam .;
leaves 2 ’ mm. long x 1 ’2 min. broad, lA mm. x 1' m m ., 1'4 mm.
X -8 m m . ; cells '05 m m . x '03 m m .. -04 mm . x '03 m m ., 'OS mm. x
•03 mm., -02 mm . x '02 mm. ; trigones -01 m m . ; bracts 2 'm m . x
1-25 m m ., 1'75 mm . x 1'25 mm. ; perianth 3'2 m m . long x 1'5 mm.
broad, 2-5 mm . x 1-25 mm . ; pistillidia L6 m m . long x '04 mm.
broad; antheridia '2 m m . diam.
H ab.—Grows in small dense patches in woods or moist shady
places, or on banks of streams on clayey or gravelly soil, on stones
and rooks or at the base of trees. Very rare.
2 Tunbridge Wells, Sussex, TF. Borrer, E. M. Holmes. 10.
Cronkley Gill, Eskdale, Torks, Dr. Spruce; Arncliffe Wood,
Eskdale, Torks, M. B. Slater. 12. Mill Beck Stock, Rayrigg
Wood, Windermere, Westmorland, G. Stabler.
Found on the Continent and in North America.
Obs.— Hooker figured and described this species from Continental
specimens; it was first described from British specimens