118 H E P A T IC Æ .
slightly thickened, no trigones. Stipules large, orbicular or
subrotund, or roundish-subquadrate, concave, to nearly the ^
quadrifid, segments acutate. Perianth on short postical branches,
bracts several pairs, innermost largest, oval-orbicular, apex with 4
or 5 small teeth ; bracteole orbicular, quadri-dentioulate ; sub-
braoteole ovate, quadri-dentate. Perianth projecting f beyond
the bracts, subulate, cylindrical, upper half plicate, mouth contracted.
Androecia on short postical catkins, often 3 or 4 on a
stem ; perigonial bracts closely imbricate, turgid, bifid; perigonial
bracteole oval, bidentate, texture as with the perigonial bracts
much more delicate than the leaves, cells larger with thinner walls.
Antheridia solitary, large, roundish-oval, shortly stipitate.
D im e n s io n s .— S tem s 1 to in ch lo n g , d iam e te r '2 m m ., w ith
leav e s 1- mm. w id e ; le av e s 1 ' mm. x -85 m m ., s e gm e n ts '4 mni.,
•9 mm. X -9 m m ., seg. '3 mm . ; cells '0 2 mm . x '0 2 5 m m ., '0 2 mm.
x -02 m m ., '0 3 mm. x ’0 2 5 m m ., -03 mm. x -03 m m ., -035 mm. x
•02 mm. ; s tip u le s -55 mm. x -55 m m ., s e gm e n ts '2 m m ., '5 mm. x
•45 mm., seg. '2 m m ., -5 mm . x '6 m m ., seg. '2 mm., '5 mm. x '5
mm., seg. '2 m m .; b ra c ts I ' l mm. x '8 m m ., te e th -15 m m .;
b ra c te o le '8 mm . x '6 m m ., te e th -1 mm. ; su b -b rao teo le '6 mm. x
•4 m m ., te e th '1 mm. ; p e r ia n th 4- mm. x -8 m m . ; p e rig o n ia l
b r a c t -5 mm. x '5 m m „ seg. -15 mm. ; p e rig o n ia l b ra c te o le -25
mm . x -175 m m ., seg. '0 7 5 mm. ; a n th e r id ium '2 min. x '1 7 5 mm.
H ab.— Growing in large dense patches on exposed or shaded
banks, rocks and trees. Pare.
1. Cam Galva, Cornwall, JK Curmw. 9. Helsby Crag,
Cheshire, W. JFihon. Clougha, Lancashire, G. Stabler, July
1881. 10. On gritstone boulders, Idle Woods, Br. Carrviyton,
1 8 5 7 . 12. Borrowdale, Cumberland, Dr. Carrinyton and
W. II. P., April 1 88 4 . 16. Moidart, West Inverness, S. M.
Placvicar,’ fF. II. P., 189 9 . South of Ireland, more
or less abundant, M ss Hutchins, Br. Tayhr, Br. Spruce, and
others.
Extremely rare on the Continent, Germany, Prof. A. Braun;
France, near Cherbourg, Mans. Thuret.
Pound in the West Indies and South America.
L E P ID O Z IA . 119
O b s .—Distinguished from L. reptans by its dioicous inflorescence,
its tawny to reddish-brown colour, more robust habit, stems
more erect and irregularly pinnate with long flagella, leaves more
closely imbricated, cordate-orbiculate (not quadrate), cells across
the base of segments more numerous, cells smaller and more opaque
with thicker walls.
From L. Pearsoni, Sp., hy its much more robust habit, shape
of leaves and stipules and androecia on short postical branches.
Collected first in the British Isles by Miss Hutchins and recognised
as distinct from L. reptans bj' Hooker, who named it var.
pinnata, collected afterwards by Dr. Taylor, who made a new
species of it [I. tumiduta, Tayl.). I t has been referred to by later
botanists as L. cupressina, var. tumiduta, but I am unable to detect
any difference between it and the type found in the West Indies
and South America.
D escription op P late XLITI.—Fig. 1. Plant natural size.
2. Stem, antioal view x \\(C)r\gviiA of Lepidozia tumiduta, T-n,y\.,
Dr. Taylor, Killarney). 3, 4. Leaves x 31 (ditto). 5. Portion
of leaf x 290 (ditto). 6-10. Stipules x 31 (ditto). 11, 12.
Bracts x 24 (Killarney, S. 0. Lindberg). 13. Bracteole x 24
(ditto). 14. Sub-bracteole x 24 (ditto). 15. Perianth x II
(ditto). 16. Perigonial bract, with antheridium x 64 (Killarney,
G. A. Holt). 17. Perigonial bracteole x 64 (ditto).
2. Lepidozia rep tan s (A), Bum.
Miiscokles terrestre repens ex obscure virescens, fo liis superim'ihus et inferioriWs ad
extremitatem deniatis, Mich. Nov. pi. gen. p. 10, t. B, f. 2 (1729).
Lichenasbrum mvltifidum exiguum, ad basin florens, per siccitatem inibrioatum.
Dill. Hist. Muse. p. 494, t. 71, f. 24 (1741).
■Jungermania reptans, L., Sp. pi. 1599 (1753).
I’leuroschisma reptans, Dum. Syll. Jung. Bur. p. 69 (1831).
Mastigophora reptans, Nees. Nat. Eur. Leb. 1, p. 101 (1833).
Jjepidozia reptans, Dum. Eecueil. p. 19 (1835).
Ilerpetium reptans, Nees. Nat. Eur. Leb. I l l , p. 31 (1838).
Monoicous, densely cæspitose, tufts depressed, tiagelliferous,
medium size, green, when older pale or yellowish-green, when dry