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Exs No. 185. Jungermannia bidentata, Raddi.
Etrusc. t. IV., fig. 6.
On mountain rocks.— {Plate j . Jig. 46.) (Fr.
April.)
Leaves with the teeth longer than in L. bidentata,
more acute and straight. There has been some
uncertainty about L. Hookeriana. Gottsche says
that: “ Hooker’s figure of L. bidentata (t. 30, f. 7)
shows a deeply divided involucral leaf, each lobe
bidentate, which I have never seen in British or
German examples, and which must be of rare
occurrence, or depend on some mistake. Our
German forms have the segments of the involucral
leaves either entire, merely elongated cauline leaves,
or they have a small tooth on one side, and the
adjacent stipule is quadrifid.” It was probably a
mere local variety of L. bidentata, and not the above
species.
Lophocolea spicata, Tayl.
Stem branched ; leaves horizontal, ovate,
apex two or many toothed ; perichæt ial leaves
many toothed ; st ipules free, bifid, dentate at
the base, fruit terminal ; perainth prismatic,
naked ; mouth torn and toothed ; perichæt ial
leaves two-toothed, serrate.
Lophocolea spicata, T a y l . , in Ne e s S yn. Hep.
1 6 7 ; Co o ke Hep. fig. 1 13 ; Carr, and Pears.
Exs. No. 263.
Amongst mosses.
Stem creeping, branched ; leaves ovate, somewhat
horizontal, diversiform, apex emarginately
bidentate, 'Or tridentate, with the
middle tooth largest or multidentate
(fig. 105). Stipules free,
small, bifid, furnished with a small
tooth sometimes about the base ;
fruit terminal, perianth prismatic,
the angles without wings, mouth
laciniate, laciniæ toothed, bracts
larger, many toothed at the apex,
sometimes with the dorsal margin serrate ; involucral
stipules ovate and bifid.
Lophocolea heterophylla, Schr.
Stem ascending, branched, leaves accumbent,
quadrate-rounded, entire, emarginate or
obtuse ; perichæt ial leaves external, two or
three lobed, dentate ; st ipules dissected ;
perianth terminal, mouth cristate.
Jungermannia heterophylla, Schrad. Journ.
Bot. 1801, p. 6 6 ; Hook. Br. Jung. No. 31 ;
Mart. Erl. p. 140, t. 3, f. J 2. Jungermannia
bicuspidata, Eng. Bot. t. 281. Lophocolea
heterophylla, Dumort. Rev. Jung. p. 1 7 ; Carr,
and Pears. Exs. No. 3 6 ; Co o ke Hep. f. 110,
1 12.
On trunks. (Fr. Early Spring.)
Growing in small loose patches, often amongst