i ! :
1 '
[ ' I I ; r
in others (fruit mature) partly obliterated or only at the apex to
be seen, mouth constricted denticulate, setulose, ciliate or laciniate ;
walls leptodermous, except at the very base, where it changes into
the stem or branch, or in a few species, the lower half 2—3 cells
thick. Andrcecia sqnoate or amentiform, in different places, but
very rarely hypogenous, $ bracts immediately below the female
flowers.
1. Cephalozia ca tenulata {Ruhen.)
.hmgm-mania catenulata, Hüben. Hep. Germ. p. 169 (1834).
Jungermania reclusa, Tayl. Lend. Jo u rn . Bot. p. 2 i8 (1846).
Jungermania bicuspidata, var. ericetorum, G.L.N. Syn. Hep. p. 139 (1844).
Cephalozia aerriflora, Lindb. Medd. Soc. Fennica (1878).
Cephcdozia catenulata (Hüben.), Spruce, “ On Ceph.” p. 33 (1882).
Dioicous, usually cladocarpous, densely but thinly cæspitose,
flagelliferous, small, brown in colour. Stems prostrate, subpinnate,
cells of the stems about 6 in diameter, cortical 14, inner
slightly larger and more pellucid ; branches radiculose ; rootlets
whitisli. Leaves small, subimbricate, slightly concave, when dry
much incurved, catenulate, oval-rotund, slightly decurrent, bifid
to about the middle, sinus more or less obtuse, segments patulous
or subconnivent, acute, 5 rows of cells, 1, 2, 3, 4, 5 wide; cells
small to smallish, snbquadrate or rhomboid, leptodermous, chlorophyllose
and subopaque, walls firm, no trigones. Stipules
wanting. Branches ? postical, short, rarely subelongate. Bracts
twice as large as the leaves, oblong, bifid to about the middle,
segments subulate-acuminate, margin denticulate or spinulose ;
bracteole similar, or entire and broadly subulate, free, margin
denticulate or spinulose. Perianth deeply emersed, linear-
fusiform, 4 times longer than broad, composed of one layer of
cells, the whole length deeply tri-carinate, mouth constricted,
setose or ciliolate. Calyptra delicate. Capsule reddish-brown,
oval-oylindrioal. Androecia terminal on postical branches, julaceous;
perigonial bracts somewhat similar to the leaves and of
the same size, few pairs; perigonial bracteoles ovate-lanoeolate,
entire or with a slight notch on one side near the middle ; antheridia
oval.
D imensions.— Stems ^ to J inch long, T mm. in diameter,
with leaves '5 to A mm. w id e ; leaves A mm. x '2 mm., '25 mm. x
T7 mm., 2 mm. x '2 mm., segments T mm., '225 mm. x T75 mm.,
seg. -075 mm., '25 mm. x T5 mm., seg. T mm.; cells A25 mm.,
•025 mm., -0225 mm. x -0225 mm., -02 mm. x -0225 mm., -03 mm.
x -02 m m .; bracts -55 mm. x A mm.. -6 mm. x -35 mm., segments
•3 mm.; bracteole -35 mni. x -175 mm.; perianth f-3 m m .x
•35 mm., 1-4 mm, x A mm., teeth at the mouth -15 mm., -1 mm.,
•075 mm.; perigonial bracteoles -12 mm. x -07 mm.; antheridia
•125 X •! mm.
H a b. On rotting wood, turfy banks and shady rooks. Eare.
2. Tunbridge Wells, E. Spruce. 10. Blaeberry Gill, near
Whitby, M. B. Slater. 12. Borrowdale, Cumberland, W. II. P.
13. ISr. of Black Craig, New Galloway, .1 McAndrew; Colvend,
Kirkcudbrightshire,/. McAndrew. 15. Banchory, Aberdeenshire,
/. Sim. I. Cromaglown and other places in the S.W., Taylor,
Spruce, Moore, Carrington and others.
Pound on the Continent and in North America.
Similar in size and habit to Cephalozia lunulafolia
Dum. but more rigid, leaf cells smaller, bracts denticulate or
spinulose, perianth composed of a single layer of cells.
Cephalozia pallida Spruce is much paler in colour, more
branched, branches suhfastigiate, leaves subdeourrent, bifid from
i to 1^, cells rather larger, bracts entire.
D escription op P late LIV.—Fig. 1. Plants natural size. 2.
Stem, antioal view x 64 (Blaeberry Gill, M. B. Slater). 3. Leaf
X .85 (ditto). 4, 5. Leaves x 85 (Canada, Maooun). 6. Portion
of leaf X 290 (Blaeberry Gill, M. B. Slater). 7, 8. Bracts x 85
(Canada, Maooun). 9. Bracteole x 85 (ditto). 10. Perianth x
24 (G. & E. n. 594). 11. Portion of the mouth of perianth x 85
(ditto). 12, 13. Perigonial bracteoles x 85 (ditto). 14. Antheridium
X 85 (ditto).