The English flora - SeaweedAfrica

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42 MUSCI-ACROCARPI-PERISTOMI. [Dieranum.
ed. 2. p. 104
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x. vulgaris; stems elongated robust, leaves slightly
falcato-secuncl. D. scoparium, Hedw. Sp. Muse. p. 126. Fl. Brit,
p, 1201. Tarn. Muse. Hib. p. 58. Hobs. Br. Mosses, v. I.
n. 41. Drum. Muse. Scot. v. 1. n. 33. Schwaegr. Suppl. v. 1.
p. 163. t. 42. Bryum scoparium, Linn.—E. Bot. t. 354. Dill.
Muse. t. 46. 16.—/3.
f. majus ; stems more elongated, leaves
more falcate and larger. D. majus, Turn. Muse. Hib. p. 58.
E. Bot. t. 1490. Schwaegr. Suppl. v. I. p. 163. t. 40 y. fuscescens;
smaller in every part, leaves subsecund narrower somewhat
crisped when dry. D.fuscescens, Turn. Muse. Hib. p. 60.
FL Brit. p. 1204. E. Bot. t. 1597 D. congestum, Schwaegr.
Suppl. v. 1. p. 168. £. 42.
p. 170. t. 44.
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D. longirostre, Schwaegr. Suppl. v. 1.
Woods and hedges. y. principally in mountainous countries. Fr.
Aug.—Most authors consider the three varieties above noticed as distinct
species ; but I must confess myself unable to draw any decided line of dis-
tinction : they are seen to pass gradually into each other, both in British
and foreign individuals ; and the species is met with in almost every
quarter of the globe. The capsule m * is often cylindrical and elongated,
less drooping; but at other times it is as short and as much inclined as
in p> and y.
23. D. vdrium, Hedw. (variable Fork-Moss); stems short,
leaves narrow hastato-lanceolate, capsule ovate, lid rostrate.
Muse. Brit. ed. 2. p. 102. t. 17.—«. viride ; leaves generally
pointing in all directions lanceolate green, capsules subcernuous.
D. varium, Hedw. St. Cr. v. 2. t. 34. Turn. Muse. Hib. p. 65.
Fl. Brit. p. 1209. E. Bot. t. 1215. Hobs. Br. Mosses, v. 1.
n. 42. Drum. Muse. Scot. v. 1. n. 39. Schwaegr. Suppl. v. 1.
p. 174.—D. rigidulum, Sw. Muse. Suec. t. 3. /. 7. Hedw. Sp.
Muse. t. 32. Schwaegr. Suppl. ». 1. p. 174. Fl. Brit. p. 1211.
—D. callistomum, Fl. Brit. p. 1211. Bryum callist. Dichs.—
(3. rufescens ; leaves subsecund lanceolato-subulate reddish, capsules
erect. D. rufescens, Turn. Muse. Hib. p. 66. E. Bot.
t. 1216.- Bryum rufescens, Dicks.—Dill. Muse. t. 50. /. 59
y. luridum ; leaves subsecund subulate of a lurid colour, cap-
sules subcernuous. Muse. Brit. ed. 2. p. 102.
Moist banks. Fr. Winter.— In the rufescent variety the leaves are
more pellucid and more reticulated than in «. :—but the var. y. partakes
of the character of the two others.
24. D. heteromdllum, Hedw. {silky-leaved Fork-Moss); stems
branched, leaves subulate falcato-secund nearly entire, capsule
ovate subcernuous, lid with a long beak. Hedw. St. Cr. v. 1.
t. 26. Turn. Muse. Hib. p. 61. Fl. Brit. p. 1204. E. Bot.
t. 1272. Hobs. Br. Mosses, v. 1. n. 43. Drum. Muse. Scot. v. 1.
n. 40. Schwaegr. Suppl. v. 1. p. 173. Muse. Brit. ed. 2.
p. 103. t. 18.—
(Z>. orthocarpum, D. curvatum and D. interruptum
of Hedw. Sp. Muse, can scarcely be distinguishedfrom this).
—Dill. Muse. t. 47./. 37 and 38.
Shaded, especially sandy banks, frequent. Fr. Oct. Nov. Leaves
deep and bright green. Seta? and capsules red-brown.
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