margin complicate, lobule c o n v e x ; perianth
obovate, mouth contracted, somewhat toothed.
Jungermannia microscopica, Mack. FI. Hib.
II., 5 9 ; T a y lo r Hook. Journ. IV., t. 20.
Lejeunia microscopica, T a y lo r in Gott. Syn.
Hep., p. 3 4 5 ; Cooke Hep. fig. 1 5 1 ; Carr,
and Pears. Exs. No. 280. Cololejeiinia,
Spruce.
Amongst mosses, like a green stain.
Scarcely visible to the naked eye, pallid green,
subpellucid. Stems two to three lines long, slender,
flexuous, sparingly branched,herc
and there emitting short simple
pellucid rootlets; leaves rather
distant, flattened, acuminate,
ovate - lanceolate, the elevated
cells at the margin giving the appearance
of serratures (fig. 26) ;
perigonial leaves more obtuse at
the apex, enclosing in the folds
one or two rufescent ovate anthers,
26.
perichsetial leaves binate, appressed to the
base of c u p ; perianth tumid, obovate from a
narrow base, ecostate, twice longer than the leaves ;
peduncle pellucid ; capsule rounded-ovate, pale
brown, quadrifid.
Lejeunia calcarea, Lib.
T h re ad - like, loosely and divar icately
branched ; leaves t ranv e r se ly ovate, concave.
acuminate, echinately dentate, decurved, complicate
at the base ; involucral two - lobed
entire ; perianth terete, apex pentagonal, with
costate wings.
Jungermannia hamatijolia ¡3 echinata. K o o k .
Br. Jung. 51. Jungermannia calcarea, Ifib.
C ryp t Exs No. i i i . Jungermannia echinata,
Tayl. in Spruc e Trans. Bot. Soc. Edin. IE,
«8 . Lejeunia calcarea. Lib. A n n VI 373 t
96, f. i ; Gott. and Rab. Exs. No. 46, 283'
323» 365 ; Spruc e Trans. Bot. Soc. Edin. I l l ’
2 1 2 ; Carr, and Pears. Exs. No. 278 ; Cooke
Hep. f. 130. Cololejeunia, Spruce.!
On Limestone rocks.
_ Very delicate and minute, so as scarcely to be
visible to the naked eye, loosely ■
and divaricately branched. Leaves
ovate acuminate, echinulate and
denticulate with the projecting cells
(fig. 27), falcate, decurved, sinuatelv
complicate at the base, the fold
saccate, ovate, twice as short as
the leaf._ Involucral leaves bifid,
the lacimse entire. Perianth on a
Lejeunia ulicina, Taylor.
Dioicous, v e r y minute, stems thread-like,
D 2