Pistillidia delicate, 1 or 2, rarely 3 or 4. Perianth trigonous,
obpyramidal, slightly rostellate, smooth. Calyptra lower half
broadly tubular, 2 or 3 cells thick, upper half abruptly subglobose,
delicate. Pedicel about twice as long as the perianth,
thick. Capsule globose, dividing into 4 valves which are composed
of two layers. Elaters long. Spores minutely tuberculate.
Andrcecia spicate on branches; bracts diandrous.
1, Jubula Hutchinsise (Hook.), Bum.
Jungermania Hutchinsim, Hooker, Brit. Jung. t. 1 (1816).
Jubula Hutchinsim, Dum. Comm. Bot. p. 212 (1822).
Frullania H utchinsim, Nees Nat. Bur. Leb. I l l , p. 240 (1838).
Monoicous, in spreading or dense imbricated patches, rarely
substratified, medium to large in size, pale to blaokish-green in
colour. Stems prostrate, laxly and subflabellately branched,
sometimes pinnate, sometimes dichotomous, subgeniculate, branches
proceeding from below the ? flowers furcately, rarely with unilateral
innovations, 8 x 6 cells in diameter, frontally compressed,
cortical cells about 30, pale brown, much smaller than the inner
which are very large and pellucid; radiculose, rootlets few,
whitish. Leaves incubous, horizontal, snhimbricate, antioal
distichous, hifarious, unequally bilobed, antical lobe plane, broadly
obliquely ovate, apioulate-acute or cuspidate, except at the base
acutely spinose-dentate, principally at the antical margin, spines
2-12, triangular-acuminate, sometimes longer and ciliaform, lower
leaves less, upper leaves more dentate, branch leaves with few,
rarely without, antical base dilated but not cordate, covering the
stem, sometimes unidentate, postieal lobe 4 to 5 cells distant from
the stem, subparallel to it, saccate, ovate, 5 or 6 times shorter
than the antical lobe or evolute, subulate or lanceolate acuminate;
cells smallish, 5- and 6-angled, near base subelongate, walls thin,
no trigones or thickened angles, subpelluoid or with numerous
chlorophyllose granules which crowd round the cell walls, making
them appear thickened; at the insertion of every branch is
present an antioal elobulate leaf seated partly on the stem and
partly on the branch, broadly suboordate-ovate, acuminate, quite
entire or subspinose, no lohide. Stipules subrotund subplane,
acutely deourreut at the base, to about the middle bifid, segments
cuspidate-acuminate, connivent, margin with few long spines or
entire. Flowers ? on terminal branches. Bracts adnate at their
base, longer than the leaves, deeply bilobed, complicate, lobes
obliquely lanceolate acuminate spinose or laciniate, postical half
the size or smaller. Bracteole oblong, almost bipartite, carinate,
lobes unequal, slenderly acuminate spinose. Perianth verruculose,
composed of a single layer of cells, about 200 round, near the
middle, twice as long as the leaves, projecting about half beyond
the bracts, pyriform or narrowly obpyramidal, deeply trioarinate,
flattened antically, postically ridged, angles rounded, at the base
terete, apex rotundate-truncate, obscurely rostellate. Pistillidia
slender, 1 or 2, very rarely 3 or 4. Calyptra below 2 or 3 cells
thick, above abruptly subglobose, delicate. Capsule globose,
outer layer ©f cells dark brown, inner pale yellow, margin of
valves when open reflexed, base (apex of pedicel) cruciate, hyaline.
Spores brown, elaters pale brown.
Male spikelets on short lateral branches; perigonial bracts
about 6 pairs, more than twice smaller than the leaves, broadly
emarginate-bilohed, turgid below, lobes subacuminate, connivent,
lower smaller quite entire, rarely denticulate; perigonial bracteole
ovate-acute, bifid to below the middle, segments subulate, margin
entire or unidentate ; antheridia 2, oval.
D i m e n s i o n s .— Stems 1 to 2 inches long, with leaves 2' mm.
to 2-5 mm. wide, diam. of stem ’I mm. to '2 mm., leaves, antioal
lobe 1-25 mm. x '75 mm., postical '25 mm. x -175 mm., antical
1-5 mm. x -75 mm., postical '15 mm. x '2 mm., antioal L mm.
X '6 mm., postical .3 mm. x '2 mm., cells -03 mm., '025 mm.,
•03 mm. X '02 mm.; stipules '75 mm. x '6 mm.; segments -35 mm.,
•6 mm. X -5 mm., seg. -25 mm., -65 mm. x '6 mm., seg. '25 mm.;
sub-bract, antical lobe 1'25 mm. x '5 mm., postical '75 mm. x
•25 mm.; bract, antical lobe 1'5 mm. x -75 mm., postical 1' mm. x
•35 mm.; bracteole 1-25 mm. x '75 mm.; segments -75mm.,perianth
1-9 mm. x -95 mm.; valves of capsule '4 mm. x '25 mm. ; apex of
pedicel '3 mm. diam.; spores '015 mm.; elaters -25 ram. x -015mm.;