1
hJi:
Growing ni rather dense pale-green tufts.
Stems about ^ inch long, ascending, thread-like,
waved, and simple, attached
by white radicles. Leaves
distantly _ and bifariously
placed, in barren shoots
smallest at the base and e x tremity,
in fertile largest towards
the calyx, orbicular,
a little concave and decurrent,
mostly horizontal,
spreading, sometimes towards
the apex, erect (fig.
127), pale green. Perichaetial
leaves more ovate, always
^ , , larger. Calyx oblong, inclining
to obovate, without angles, cut at the apex
into four large acute teeth (fig. 128). Capsule
spherical, brown, shining. Elaters short, bispiral.
Aplozia riparia, Tayl., Dum.
Root ing, leaves obovate, obtuse or subemar-
ginate, perichæt ial saccate, spreading, squa r rose.
Perianth pear-shaped, p licate at the apex,
compressed frontally, mouth contracted denticulate.
Jungermannimriparia,Tny\. Trans . Bot. Soc.
Edin. I I ., 43 ; Gott. and Rab. Exs. No. 428 ;
Cooke Hep. fig. 69. Aplozia riparia, Dum. H e p ’
Eur. p. 63.
var. minor, Carr, and Pears. Exs. No 168
169. ■ '
Stems procumbent, branched. Leaves scarcely
overlapping, embracing the stem at their base,
roundish or oblong, concave, and not toothed at
the margin. Calyx terminal, obovate, plaited at
the apex. Leaves more distant,
concave, broader and rounder than
in Aplozia pumila, with larger cells
(fig. 129). It may be distinguished
from A.pumila, with which it was
long confounded, by the paler
colour, larger size, the leaves more
distant, amplexicaul, more concave,
129.
broader and rounder, their
cells much larger, the calyx less
exserted out of the perichætiuin,
the calyx never acuminate, and the calyx distinctly
plicate above. Lroin Aplozia spharocarpa
it differs by the larger and more procumbent stems,
the calyx plicate above, longer and less wide, the
leaves not exactly orbicular, but rather terminating
in the figure of a parabola.— Taylor.
This species varies much in the form of the
perianth and leaves, the frontal compression of the
perianth is slight, but perceptible.— yp.)
Gen u s 25. JUNGERMANNIA, Limi.
invo lu c re small-leaved, perichæt ial leaves
many times cut, dissimilar to stem leaves.
Per ianth sessile, erect, terete, inflated, mouth
contracted and toothed. C alypt ra free, within
the perianth. Capsule four-valved, coriaceous,
naked. Elaters double, naked, deciduous. —
Dumort. Hep. E u r . 68., t. ii., / 19,