The English flora - SeaweedAfrica

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76 MUSCI-PLEUROCARPI-PERISTOMr. [Hypnum.
2. Capsules cemnous or inclined.
*3. H. ripdrium, Linn, (short-beaked water Feather-Moss);
leaves ovato-lanceolate acuminated entire the nerve reaching
almost to the summit, capsules oblong cernuous, lid conical.
Linn. Sp. PI. p. 1595. Hedw. St. Cr. v. 4. t. 3. Turn. Muse.
Hib. p. 152. Fl. Brit. p. 1292. E. Bot. t. 2060. HobsrBr.
Mosses, v. 1. n. 66. Schwaegr. Suppl. v. 1. P. II. p. 194. Muse.
Brit. ed. 2. p. 153. t. 24 Dill. Muse. i. 40.
f.
44. B, C, D.
Banks of rivers, often partially in the water, and in spots occasionally
overflowed. Fr. Apr. Stems 4—5 inches long. Colour lurid
yellow-green. This, like all plants liable to be acted upon by much
moisture, is variable in size, in its mode of growth and in the longer or
shorter stems and leaves. Mr. Wilson even doubts if it may not pass
into H. Jluitans ; but this opinion 1 have had no means of verifying.
4. H. undiddtum, Linn, (waved Feather-Moss); leaves ovate
acute transversely waved with two faint nerves at the base,
capsule oblong furrowed arcuato-cernuous, lid rostrate. Linn.
Sp. PI. p. 1589. Turn. Muse. Hib. p. 154. Fl. Brit. p. 1294.
E. Bot. t. 1181. Hobs. Br. 3Iosses, v. I. n. 68. Brum. Muse.
Scot. v. 1. n. 75. Schwaegr. Suppl. v. 1. P. II. p. 197. Muse.
Brit. ed. 2. p. 153. t. 24.—Dill. Muse. t. 35. / 11.
Woods, in dry heathy places and among rocks. Fr. Apr.— This plant
has peculiarly white, membranaceous, undulated leaves, and the cap-
side distinctly furrowed, which latter peculiarity gives it the same relation
with the other Hypna as Bryum palustre and B. androgynun bear
to the rest of the Brya.
5. H. denticuldtum, Linn, (sharp fern-like Feather-Moss);
leaves ovate sometimes approaching to lanceolate more or less
acuminate having 2 short nerves at the base, capsule oblongocylindraceous
inclined, lid conical. Muse. Brit. ed. 2. p. 153.
t. 24. a. angustifolium ; leaves ovato-lanceolate distant quite
plane. Linn. Sp. PI. p. 1558. Hedw. St. Or. v. 4. t. 31. Turn.
Muse. Hib. p. 148. t. 12. /. 1. Fl. Brit. p. 1288. E. Bot.
t. 1260. Hobs. Br. Mosses, v. 1. n. 67. Drum. Muse. Scot. v. 1.
n. 74. Schwaegr. Suppl. v. 1. P. II. p. 187. Muse. Brit,
ed. 2. p. 153. t. 24. H. sylvaticum, Schwaegr. Suppl. v. 1.
P. II. p. 182. t. 82.—Dill. Muse, t 34. /. 5.-/3. obtusifolium;
leaves ovate more or less obtuse slightly concave. H. denticu-
latum, (3. obtusifolium, Turn. Muse. Hib. p. 146. t. 12. /. 2.
H. obtusatum, Wahl. Lapp.—H. Donianum, E. Bot. t. 1446.
Woods and moist rocky places. /3. Mountains. Fr. May.— The above
varieties, as I have considered them, some botanists have ranked as
species: but if examined in their places of growth intermediate states
will be found. The texture of the leaf even is variable, more reticu-
lated in A. than in a.
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