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358 HEPATIC.E OF LOUGHBRAY, CO. WICKLOW.
Dr. Spruce says the true plant has very small leaves, minute cells,
and for its size enormously long slender perianths.
In the following list, which is provisional only, I have enumerated
67 species, forming a large percentage of the whole 146 species
known to inhabit Ireland, all collected within the distance of two
miles. Six of these are new to the county of Wicldow ; they are
FriUlania frajili/ulia, Melius anomalus, ilmu/ermania [Lopliozia)
exsecta, J. intermedia, J. incisa, and J. j^orphyroleuca. 'Loughbray
is a new locality for the following fom" : Cej)halozia curvifoiia,
Kantia arguta, J. [Aplozia) crenulata, and Jungermania nana.
Marchantia j^olymoiyha L. Plentiful on moist banks (seldom
found fertile).
Conocephalus cornicus Neck. Abundant in damp shaded places,
on the banks of streams forming large masses, fruiting in spring.
Frallania dilatata Dumort. Plentiful on the trunks of trees and
on wet rocks. — F. fragilifolia Tayl. On the trunks of Alder, and
also firmly attached to the wet rocks, and amongst Flagiotheciitm
dcgnns, D. McA., July, 1887. Leaves of a dull purple colour, very
convex, and from their narrow insertion readily detached on
pressure; auricles oblong, helmetlike; under leaves (stipules)
ovate and bifid at the apex ; margin plane. F. Tamarisci Dumort.
Plentiful on the smooth bark of trees, spreading in large patches.
Var. rubusta [3^ ster.), S. 0. Lindberg, 1873. — F, germana Tayl.
On moist rocks and on the trunks of moss-covered trees ;
plentiful.
Often passed over for the preceding, from which it differs in its
large size, light brown colour, involucral bracts entire, leaves
wanting the line of moniliform cells, which are so obvious across
the leaves of F. tamarisci.
Fuidula cumplanata Dumort. On trunks of trees and rocks ;
common.
Porella JcBvigata Liudb. Plentiful and very fine on wet rocks.
P. Thvja Tayl. On rocks and stones.
Pleurozia cochleari/oniiis Dumort. Plentiful in damp boggy
places amongst the heather.
Lcpidozia rcptans Dumortier, Hook. Plentiful in damp shady
places.— L. cujnessiiia Dumort.
Uazzania trilobata B. Gray, In rocky places ; not in such
abundance as it is found in the South and West of Ireland. A
\vell-marked plant, easily known by the large quadrate under leaves,
which are wider than the stem.
Cephaluzia Sphagni Spruce. Plentiful amongst Sphngnums
and olher mosses in damp places. — C. elaclnata Lindb. On damp
banks ; rare. Dr. Lindberg, 1873 ; D. McA., 1887-88.— r. bicuspt-
(/(/^/ Dumort. On shady banks; common. \nv. uliginosa Nees,
Eur. Leberm. ii. 253 ; Jnngennamiia Lam e rsiana iixxhw. Hep. Germ.
165; J. binispidata E. Bot. t. 2239. Swampy places amongst
Sphagnums, margins of streams, and amongst the fronds of Pellia.
Dr. Spruce states that this can hardly be considered more than the
dioecious and perfect form of ( '. biritspidata. Whether species, sub-
species, or variety, it is most easily to distinguish from C. bicttspi-