Download 306 [Fissidens. minutely crenulate, or almost entire, the dorsal wing

306
BRYACEvE.
[Fissidens.
minutely crenulate, or almost entire, the dorsal wing ceasing abruptly
just above the base of the leaf; nerve strong, ceasing near the apex,
which is sometimes toothed; areola? round, dot-like, larger than in
F. bryoides. Fruitstalk about -J- of an inch long, reddish, rather
thick. Capsule oval-oblong, suberect or inclined, reddish-brown.
Lid as long as the capsule, or longer, convex below, with a W ,
slender beak. Calyptra conico-subulate, indexed at the base, where
it is torn into several lobes, rather longer than the lid, whitish.
Barren-flowered plant more slender than the fertile one, its flower
terminal.
From F. bryoides this species is abundantly distinct in the leaves,
which are destitute of border ; in the long, rostrate lid ; the calyptra;
and the dioicous inflorescence : its habit is also very different. A va­
riety with secund leaves is found in Ireland.
The var. (3., found near Bex and Geneva in Switzerland, so closely
resembles the Dillcnian figure above cited, that we cannot doubt the
identity of the original specimen, which Bridel believed to be dif­
ferent, and which he supposed to have been replaced in the Herbarium
of Dillenius by a specimen of F. oamundoides. The Swiss specimens
in Schleicher's Herbarium appear to have grown either in water, or in
very wet situations; the capsules are so small as to be inconspicuous;
and the fruitstalk is barely lj- line in length. We have specimens in
an intermediate state from a bog near Malham, Yorkshire.
5. Fissidens asplenioides Swartz, Hedw. {J"em-like Flat ForkMoss) ; dioicous ; stem linear, elongated, simple or branched ;
leaves numerous, linear-lanceolate, or ligulate, entire, rather
obtuse, incurved when dry ; fruitstalk terminal, rather short;
capsule suberect, obovate, slightly incurved ; lid rostrate, as
long as the capsule ; barren flowers axillary, or terminal.
(TAB.
LIII.)
Dicranum asplenioides Swartz, Fl. Ind. Occid. iii. p. 1770.
Fissidens asplenioides Hedw. Muse. Frond. 3. t. 28. Schw.
not Dickson.
var. /3. polypliyllus ; stems longer ; branches arcuate ; leaves
wider, rather acute, more strongly nerved, serrulate at the
apex ; barren flowers numerous, axillary. ( T A B . L I I I . )
F. polyphyllus Wils. MSS.
Bruch and Schimper, Bryol.
Eur. Suppl. t. 3.
var. y. serrulalus ; leaves twice as large, wider, apiculate,
distinctly serrated at the apex.
Fissidens serrulatus Bridel. Br. Un. ii. 704. Montagne,
in Ann. Sc. Nat. & Hist. Nat. des Isles Canaries par
Webb and Berthelot (1840), p. 22, 23. t. 2. f. 1.
F. divisus Kunth.
Hab. Var. /3. on moist shady rocks in mountainous situations.
Near Glengariff, Ireland, Nov. 1829. Plentiful on rocks near
Pont Aberglaslyn, 2 miles from Beddgelert, on the right of
thé road to Tremadoc, N . Wales, 1838, W. Wilson.
Fr.?
The var. /3., unaccountably referred to F. adiantoides by C. Miiller
(Syn. Muse), has been found with barren flowers only, and therefore