account of Jungcrnmniiia Lyoni, 'I'ayl., having
been referred to it in the synopsis, whi ls t Dr.
Car r ington regards T a y lo r ’s species as a form
of Jungermannia lycopodioides. W e have been
unable to trace tlie typical Jimgermannia socia
as British.
Jungermannia exsecta, Schmid.
Stem near ly erect; leaves bifarious, spreading,
concave, acute, margin one- toothed,
emarginate ; perichæt ial leaves four-fid ;
stipules none ; perianth terminal, plicate.
Jungermannia exsecta, Schmid. Ic. 244, t. 62,
fi 2; Hook. Br. Jung., No. 14, Suppl. t. i J
G o t t and Rabh. Exs. 130. 177- 3 5 8 ; Carr,
and Pears. Exs. No. 108, C o o k e Hep. f. 85.
On boggy heaths.
Forming small scattered patches, somewhat stellately
disposed, pale yellowish green. Stems prostrate,
4 inch long, fragile,
simple, or rarely
with a small shoot
at the base. Leaves
imb r ic a ted in two
o p p o s i t e r o w s ,
spreading or horizontal,
gradually becoming
smaller towards
the base, where they
closely surround and
132.
embrace the stem, ovate in figure, concave, or conduplicate,
very acute at the apex, furnished in the
middle of the upper margin with a strong sharp
tooth, pointing a little upwards (fig. 132). Fruit terminal.
Calyx oblong-ovate, cut at the mouth into
four obtuse teeth. Capsule ovate. Elaters bispiral.
Gemmae abundant in December and Januar)-, of
a deep orange colour.
Jungermannia alpestris, Schl.
Stems creeping, near ly simple ; leaves accumbent,
ovate, subquadrate, obliquely tw o toothed
; laciniæ acute ; perichæt ial leaves
bi- or tri-fid, erect, entire ; st ipules none ;
perianth oblong, terete ; mouth obtusely
plicate.
Jungermannia alpestris, Schl. Exs. ii., 59;
Gott. and Rabh. Exs. 190, 264, 265, 304,
3046 ; Carr, and Pears. Exs. 109 ; Cooke
Hep. fig. 78.
Densely cæspitose in Alpine regions.
var, gelida, T a y l . Hook. Journ. IV., 1845,
p. 2 7 7 ; Carr, and Pears. Exs. No. n o .
Stem ascending, i inch long, flexuous, apex
innovant ; leaves approximate, erect, spreading,
secund, subrotund, bifid; lobes unequal,
rather acute, incurved, entire.