The English flora - SeaweedAfrica

40 MUSCI-ACROCARPI-PERISTOMI. [Dicranum.
SuppL v. 1. p. 194. t. 46. Drum. Muse. Scot. v. 1. n. 35.
Muse. Brit. ed. 2.p.97.t. 17.— Oncophorus, Brid.
Alpine rocks. Fr. July.— Similar in many respects to the preceding;
but generally larger, sometimes 4 or 5 inches long, with a longer
capsule. There is, too, a perichcetium whose leaves are convolute, as in
1). scoparium.
—
** Capsule without a struma.
15. D.flavescens, Sm. (yellowish Fork-Moss); stems branched,
leaves long lanceolate serrulate pointing in all directions crisped
when dry, capsule oblong erect, lid rostrate. E. Bot. t. 226-3.
Fl. Brit. p. 1224. Drum. Muse. Scot. v. 2. n. 40. Muse. Brit,
D. gracilescens, Web. et Mohr— Schwaegr.
ed. 2. p. 98. t. 17.
Suppl. v. 1. p. 180. t. 46 Bryum flavescens, Dicks.
On wet sand, under the rocky batiks of rivers. Fr. Aug.
16. D. squarrosum, Schrad. {(hooping-leaved Fork-Moss);
stems somewhat branched, leaves from a broad sheathing base
lanceolate obtuse recurved and patent directed to every side
crisped when dry, capsule ovate subcernuous, lid rostrate.
Schrad. Joum. 1802. Turn. Muse. Hib.p. 69. FL Brit. p. 1225.
Schwaegr. Suppl. v. 1. p. 182. t. 47. E. Bot. t. 2004. Hobs.
Brit. Mosses, v. 1. n. 39. Drum. Muse. Scot. v. 1. ft. 41. Muse.
Brit. ed. 2. p. 98. t. 17 Bryum palustre, Dicks.— Oncophorus,
Brid.—Dill. Muse. t. 46. /. 24.
Wet spongy plains, in rocky alpine situations ; bearing fruit (July)
rarely, and usually in sandy deposits by the sides of streams ; as in the
Dublin mountains, Dr. Taylor; and Castle Kelly Glen, Ireland, Wils. s
in the Isle of Skye, &c. Fr. August.— Some authors arrange this with
the strumiferous Dicrana (Oncophorus, Brid.); but to me die struma is so
obscure that I think the plant ranks more naturally in the present
group. Mr. Wilson, too, observes that there is no real struma, only
the appearance of one, from the shrinking of the capsule, when dry, below
the middle.
17. D. pellucidum, Sw. (pellucid Fork-Moss); stems branched,
leaves lanceolate their margins slightly waved serrated rather
obtuse pointing in all directions, capsule ovate subcernuous, lid
rostrate. Sw. Muse. Suec. p. 35. Turn. Muse. Hib. p. 68.
Fl. Brit. p. 1223. E. Bot. t. 1346. Schwaegr. Suppl. v. 1.
p.
v.
181. t. 48. Hobs. Br. Mosses, v. 1. n. 40.
1. 7i. 42. Muse. Brit. ed. 2. p. 98. t. 17.
Drum. Muse. Scot,
Bryum pellucidum,
Linn.— Dill. Muse. t. 46. /. 23.
Sides of streams and rivers. Fr. Nov.— The more ovate, shorter,
somewhat truncate and decidedly inclined capsules, furnish the principal
distinction between this plant and D.Jlavescens.
18. D. spurium, Hedw. (spurious Fork-Moss); stems elon-
gated, leaves ovate concave erecto-patent directed to every side
the upper ones lanceolate serrulate, capsule oblong curved, lid
rostrate. Hedw. St. Cr. v. 2. t. 20. Fl. Brit. p. 1222. Schwaegr.
Suppl. v. 1. p. 179. Muse. Brit. ed. 2. p. 99. t. 17.
—