3 5 6 ; Cooke Hep. f. 93. Cephalozia divaricatn,
Dumort. Hep. Eur. p. 8 9 ; Carr, and Pears.
Exs. No. 261.
On the ground, stones, and
decayed wood.
Spruce is strongly of opinion
that this variable species should
in c lu d e several forms which
many authors have regarded as
distinct species, but which he
resolves at most into varieties.
These will be disposed as
follows :—
var. a normalis, Spruce Ceph. p. 64. Lea v e s
orbate, lobes of the leaves triangular.
Jungermannia byssacea, Roth. Cerm. III.,
387; Hook. Br. Jung. No. 1 2 ; Mack. Hib.
ÎI., 6 0 ; Mart. Erl. 166, t. 5, f. 47. Jungermannia
divaricata, Ne e s Eur. Leb. II., 241 ;
Cot t . and Rabh. Exs. No. 59, 109. Cephalozia
byssacea, Dumort. Rev. Jung. p. 18 ; Lind.
Journ. Linn. Soc. X I I I . 192.
On heaths, &c.— {Fig. So.)
Frequently growing in dense tufts, of a dark green,
sometimes almost black colour. Stem very
slender, two to three lines long, somewhat stellately
branched, branches often again divided, and procumbent,
fertile ones ascending. Leaves remote,
small, adpressed or spreading, nearly quadrate,
embracing at the base, divided at the apex about
one-third by a rather obtuse sinus, segments acute,
occasionally a little spreading, rigid and brittle
when dry. Perichætial leaves numerous, imbricate,
subquadrate, the exterior divided by an obtuse sinus
into two equal acute segments, the interior cut into
three to five unequal segments, paler. Calyx oblong,
plicate, mouth not contracted, obtusely toothed.
Calyptra ovate, delicate and pellucid. Capsule
deep red brown, longitudinally and transversely
furrowed. Elaters bispiral.
var. /3 Starkii, Sp ruce Ceph. p. 64. St ipules
present, lobes of the leaves more ovate,
or ovate lanceolate, subacuminate, acute
or obtuse.
Jungermannia Starkii, Funck. C . L. and N.
S yn . p. 134. Jungermannia Crimsulana, Jack.
Cot t . and Rab. Exs.
sub-var. stellulijera, T a y l . MS S . Leaves
recurved, spreading, involucral more
crow’ded, stellately squarrose.
Jungermannia S ta rk ii var. procerior, C. L.
and N. S yn . Hep. p. 134. Jungermannia
stellulijera, Carr, and Pears. Exs. No. 32.
Dioicous, small, colour variable, greenish olive,
sometimes tinged with rose, rarely whitish or
almost black, densely cæspitose, or loosely creeping
amongst mosses, prostrate or nearly erect ; stem
stout, sparingly branched, with radicles but without
flagella. Leaves small, scarce, longer than the
diameter of the stem, distant on the sterile,
subimbricate on the fertile, rather succubous or