I. Castle Kelly Cleh, Dublin, Dr. Tayhr; near Wooden
Bridge, Wicklow, Dr. D. Moore; at the base of Brandon Monn-
tain, Kerry, Dr. D. Moore.
Found on the Continent, Korthern Asia, and in North
America.
O b s .— A very distinct species, the only one of the genus and
easily recognised, even when barren, by the remarkable flask-like
receptacles for the gemm® and the beautiful hyaline serrated
liracts on the postical side of the fronds.
D e s c e ip t io .x oe P la t e CXCVI.-Figs. 1 & 2 . Plants natural
size. 3. Young frond x . 4. Portion of frond with young
receptacles for the gernmse, the mouth not being yet opened.
5. Fertile plant x . 6. Portion of frond, postical view showing
scales. 7. Cross-section of female frond x . 8. Capsule
opened x . 9. Antheridium x . 10. Cemm® x (Hooker).
Genus 42. PELLIA, Baddi.
■Tungermcmia, Linn. Fl. Suec. 1 ed., p. S99 (1745), et. Sp. PI. 1 ed. 2, 1135,
n. 23 (1753); Hook. Brit. Ju n g . t. 47 (1816).
Pellia, Raddi in A tt. Soc. Modena, 18, p. 49 (1818).
Papa, Gr. and Benn. Nat. A rr. B rit. PI, 1, p. 686, n. 12 (1821).
Scopulina, Dnm, Comm. Bot., p. 115 (1823).
Plants frondose. Involucre monophyllous, arising from the
antical side of the frond near the apex, cup-shaped, short,
mouth lacerate or dentate. Perianth wanting. Calyptra oval,
membranaceous, longer or shorter than the involucre. Capsule
globose, dividing nearly to the base into 4 valves. Spores
angular, oblong. Elaters free, bi-spiral. Elater-bearers attached
to the inner face of the valves. Antheridia globose, immersed
on the antioal surface of the broad indeterminate thiokenino- of
the frond. ”
1. Pellia epiphylla (/.) , Lindl).
Jungermania epiphyUa, L. Sp. pi. ed. 1, 2, p. 1135 (1753).
PeUia epiphylla, A fo rm a Dillenii, Gottsch. in Hedwigia, p. 09 (1807)
P d lia epiphylla, Lindb, Hep. in Hib. p. 534 (1874); Limpr. in Colin Krvpt.
Schles, 1, p. 328 (1876),
Marsilia epiphyUa, Lindb. Muse. Scand. p. 10 (1879).
Monoicous, growing in spreading, flat patches, largish, deep
green in colour. Fronds imbricating, and matted together by
means of their rootlets, simple or irregularly once divided,
segments oblong or broadly cuneate, margin entire near the base,
near the apex irregularly incised, sinuate or sublobate, broadly
nerved, near the middle 14-16 cells thick, gradually becoming
thinner towards the margins; texture submembranaceous, cell's
largish to large, 4-, 5-, and 6-sided, elongate, walls thin, no
trigones; radiculose, rootlets brownish white, numerous, close,
short. Involucre proceeding from the antical side of the frond,
near the apex or more rarely the middle, subcylindrioal, plicate,
mouth slightly dilated, irregularly inciso-dentate. Calyptra ovate,
when older oblong, tuberculate, exserted, carnose, composed of
several layers of cells. Pedicel long, hyaline, 18 cells thick.
Capsule spherical, pale greyish-brown, dividing into 4 equal, ovate
valves, which soon recurve, outer layer composed of hexagonal
cells, whose corners are thickened, inner layer with elongated
cells containing numerous semi-spiral rings. Elater-bearers for
some time persistent at the base of the capsule, 20 to 40, in a
dense entangled mass, brownish colour, irregular in length, at
the free end conical, obtuse, usually with 1 or 2 brown spiral
threads, sometimes 3 or 4. rarely 5 or 6, at their free end, they
are more or less uncinate, holding some of the true elaters and
spores for a longer or shorter time back. Elaters very long,
slender, twisted, usually hi-spiral. Spores oval, greenish-yellow,
finely muriculate. Male flowers situated on the antical surface of
the frond and always confined to the nerve, in which the antheridia
are imbedded irregularly in two rows.
Fruits in Spring.