The English flora - SeaweedAfrica

—
—
36 MUSCI-ACROCARPI-PERISTOMI. [Dicrtlnmn.
bcrgii, dicarpos and acacioides).—Hypnum asplenioides, Dicks.
Cr. Fasc. 2. t. 5.JI 5. y. stem short simple, capsule inclined. D.
tamarindifolium, Turn. Muse. Hib. p. 55. Fl. Brit. p. 1231
F. incurvus, Schwaegr. Suppl. t. 49.
—
Fissidens tamarindifolius,
crispus, longifolius and linearis, Brid.—F. palmatus, Hedw. St.
Cr. v. 3. t. 30. A. ?
Moist banks and in woods, frequent. #. frequent on moist rocks.
Fr. Winter.—A very variable plant ; from which the D. osmundioides
of authors does indeed at first sight appear to be distinct ; for the stems
are elongated, branched, almost erect with yellowish foliage : yet I see
no reason to consider it other than as a variety; though in this opinion
I am at variance with most Muscologists, especially the continental
ones. The structure of the leaves in this and the remaining species of
this division is highly curious, and totally unlike that of any other moss
with which I am acquainted. Besides being vertical, their upper half
(taking the nerve for the line of separation) is from the base beyond
the middle composed of two lamellae, the lower part of which embraces
the stem, while the rest often embraces a portion of the leaf placed immediately
above it.
The moss which engaged Mungo Park's attention so much in Africa
as to revive his drooping spirits when sinking under fatigue, is this
species ; as I have ascertained by means of original specimens given to
me by his brother-in-law, Mr. Dickson.
2. D. adiantoides, Sw. (Adiantum-like Fork-Moss); seta lateral,
perichaetial leaves ovate slightly convolute pointed. Sw. Muse.
Suec.p. 31. Turn. Muse. Hib.'p. hi. FL Brit. p. 1234. Hobs.
Brit. Mosses, v. 2. n. 34. Brum. Muse. Scot. v. 1. n. 32. Muse.
Brit. ed. 2. p. 90. t. 16. Fissidens adiantoides, Hedw. St. Cr.
v. 3. t. 36. Schwaegr. Suppl. v. 1. P. II. p. 10. Brid. Meth.
p. 191, together with F. grandiflorus of the same author and
F. dubius, Beauv.—Hypnum adiant. Linn.—E. Bot. t. 264.
Dill. Muse. t. 34. /. 3.
Moist banks, wet pastures and bogs. Fr. Spring.
—
—
Leaves nearly
lanceolate, more or less serrulate at the point. The base of the setce is
surrounded by a remarkably scaly perichcet'ium, whose leaves are very
unlike those of the stem, being ovate, concave, convolute, nerveless, except
at the revolute point, which is flattened and its edge vertical.
These are inserted on the side of the stem, and from below the perichaetium
reddish roots are thrown out, exactly as in the following species,
from which it scarcely differs but in the situation of the fruit, and of
which Wahlenberg considers it a variety.
3. D. taxifolium, Sw. ( Yew-leaved Fork-Moss); seta arising
from the root, perichaetial leaves ovate sheathing convolute
pointed. Sic. Muse. Suec. p. 31. Turn. Muse. Hib. p. 56.
II. Brit. p. 1233. Hobs. Br. 3Iosses, v. 1. n. 35. Drum. Muse.
Scot. v. 1. n. 31. Muse. Brit. ed. 2. p. 91. t. 16.
—
Fissidens
taxif. Hedw. Sp. Muse. t. 39. Schwaegr. Suppl. v. I. P. II.
p. 10.—Hypnum, Linn.—E. Bot. t. 416— Dill. Muse. t. 34.
f.2. Moist banks. Fr. Winter.