D imensions.—Stem to f inch long, '2 mm. in diameter,
with leaves 1’5 mm. wide; leaves 1‘ mm. x '6 mm., segments
T mm. ; cells ’07 mm. x '0 4 mm., ’0 4 mm. x '0 3 5 mm., '0 6 ram. x
■04 mm. ; stipules ‘25 mm. x ’35 mm., segments '1 mm., ’15 mm. x
•25 mm., seg. ^075 mm.
H a b .—Growing on shady clayey banks, in woods or by roadsides,
moderately rare, or overlooked.
1. Near Penzance, W. Curnow. 2. Near Ditchling, Sussex,
G, Davies. 3. Epping Forest, Essex, E. 31. Holmes. 7. Torrent
Walk, Dolgelly, Merionethshire, W. H. P. Near Pandy Mill,
Bettws-y-Coed, Carnarvonshire, M. B. Slater. 8. Near Leicester,
F. T. Mott. 9. Hazel Grove, Cheshire, Cotterill Clough, Cheshire,
G. A. Holt. 10. Park Quarry, Castle Howard, Yorks, G. Stabler,
M. B. Slater. Near Maillon Spout, Goathland, M. B. Slater.
Scarborough, M. B. Slater. Near Baildon, North-West Yorks,
}F. West. 12. 14. Helensburgh, Scotland, Dr. Graham. I. Killarney,
B. Moore. Connor Hill, Prof. Lindberg. Clonallon, Bev.
C. H. Waddell.
Found on the Continent (France) and introduced in greenhouses
in North America.
In a collection of Hepaticæ made near Natal, South Africa, by
Mrs. Ellen Sophie Bertelsen, widow of a Norwegian missionary,
specimens of this species were found, agreeing in every respect
with ours. Two other British species were found in the same
collection, namely, Lejeunea hamatifolia (Hook), and Cephalozia
connivens (Dicks.).
O b s .—A very distinct species. Distinguished from K. Trichomanis
(L.) and K. Sprengelii (Mart.) by its dioicous inflorescence,
much smaller size, leaves more oblong ; wider, semilunate sinus,
divergent segments, much laxer and more delicate texture, small
stipules which are deeply bidentate, with segments divergent and
again lobate, perianth narrower than in K. Trichomanis. In habit
it resembles small forms of Lophooolea bidentata (L.), from which
it is at once distinguished, even when barren, by its less bidentate
eaves and smaller stipules.
D escription of P late L III.—Pig. 1. Plants natural size.
2, Portion of fertile stem, postical view x 16 (Penzance, Curnow).
3. Portion of stem, antioal view x 24 (ditto). 4. Stem, postical
view X 16 (Natal, South Africa, Mrs. Bertelsen). 5. Portion of
leaf X 290 (Penzance, Curnow). 6. Stipule x 85 (Epping
Forest, Holmes). 7, 8 . Stipules x 85 (Natal, Mrs. Bertelsen).
9. Stipule x 85 (Penzance, Curnow).
Genus 14. CEPHALOZIA, Dum.
Uchenasbi-um, Dill. Gat. pi. Giss. p. 213 (1718), e t Hist. muse. p. 481, n. 4
(1741).
Jungermania, Mich. Nov. pi. gen. p. 9, n. 5, tab. 6, Fig. 17 (1729).
„ sect. Cephalozia, Hum. Syll. Ju n g , Eur, p. 60 (1831).
„ sect. Bicuspiides, Nees, Nat. Eur. Leber. H , p. 211 (1836).
Cephalozia, Dum. Eecueil, 1, p. 18, n. 21 (1835).
Zoopds, Hook, f. e t Tayl. Crypt. Antarct. p. 55, n. 22 (1845).
Trigonanthus, Spruce, Trans. Bot, Soc. Edinb. (1849).
Nowellia, Mitt, in C.-Godman Nat. H is t. Azor., p. 321, n. 12 (1870).
Pleuroschisma Oclontoschimia, Dum. Syll. (1831).
Odontoschisma, Dum. Recueil (1835).
Sphagnoeceiis, Nees in G. L. N. Syn. Hep. (1846).
Prothallium slender, linear or almost filiform, consisting of
only a single (more rarely in part of a double) series of cells;
either simple or subramose; often passing at the apex insensibly
into the stem and persisting a long time. Plants usually small
and tender, in only a few species .rather robust; of almost all
shades of green and brown, or whitish and pellucid, sometimes
tinged with rose; growing in depressed matted tufts, or flakes, or
creeping over Sphagna and other mosses. Stems usually prostrate
or procumbent, leafy throughout, or rhizomatous and leafless at
the base—very rarely with the leaves reduced to mere scales—
still more rarely frondose; branches all postical, springing from
the underside of the stem, and axillary to the stipules where any
exist; radicles usually copious, pale and slender. Leaves mostly
suooubous, in a few species transverse, in a very few subincubous;
horizontal or assurgent, never deflexed, roundish, or subquadrate,
or cuneate, rarely lanceolate, very seldom plane, usually concave.