The English flora - SeaweedAfrica

Grimmia.'] MUSCI-ACROCAUPI-PERISTOMI. 25
dry, their margins recurved, those of the periclisetium with the
nerve running beyond their summits, capsule ovate sessile, lid
shortly rostrate. Turn. Muse. Hib. p. 23. t. 5. /. 2. Fl. Brit,
p. 1195. E. Bot. t. 1645. Drum. Muse. Scot. v.X.p. 25. Schxvaegr.
Sappl. v. 1. p. 95. t. 22. Muse. Brit. ed. 2. p. 66. t. 13.— G. alpicola,
£. Wahl.
On rocks by the sea-shore. Fr. March.—Wahlenberg is surely not
correct in considering this as a var. of the preceding. It is very constant
to its characters. In both the teeth of the peristome are often
irregularly perforated. " Columella adherent to the lid and thickened
upwards." Wils.
** Seta exserted, curved or genicidated.
3. G. saxicola, Schwaegr. {sandstone Grimmia); stems scarcely
any, leaves linear-subulate crisped when dry, seta geniculated,
capsule ovate, lid rostrate straight. Schwaegr. Suppl.
v.l.p. 82. t. 22. Muse. Brit. ed. 2. p. 67. t. 13. Hook, in E. Bot.
t. 2627.—Dicranum saxicola, Mohr— Campyloptts, Brid.
On sandstone rocks, Blackdown, Sussex, rare ; Mr. Borrer. On
granite rocks in the Dublin mountains. Fr. May.—In size and general
appearance, this can hardly, by the naked eye, be distinguished from
Weissia trichodes, or from W. recurvata. The crisped leaves, with the
different nature of the peristome and mitriform calgplra, multifid at the
base, are, however, certain marks of distinction.
4. G. pidvindta, Sm. (grey cushioned Grimmia); stems short
pulvinate, leaves narrow-elliptical their margins recurved,
their points diaphanous piliform, seta curved, capsule ovate
striated, lid conical acuminated. E. Bot. t. 1728. Drum. Muse.
Scot. v. 2. n. 26.—Dicranum pidviuatum, Sivartz.— Turn.
Muse. Hib. p. 78. Fl. Brit. p. 12 14. Schwaegr. Suppl. v. 1.
p. 189.—Fissidens pulvinalus, Hedw. Sp. PL t. 40.—Bryum
pulvinatum, Linn.—Dill. Muse. t. 50./. 65.
On walls and rocks, frequent. Fr. Spring.— The teeth of the peristome
are generally perforated or deeply cleft, rarely entire : but the
plant ranks most unnaturally with Fissidens or Dicranum, where some
authors have placed i f .
5. G. trichophylla, Grev. (hair-pointed Grimmia)} sterna
elongated Loosely tufted, leaves lax waved lanceolate gradually
tapering into a diaphanous point their margins recurved,
Beta flexuOSe and curved, capsule elliptical-ovate silicate, lid
rostrate. Grev. Fl. Scot. Cr. t. 100, Drum Mute* Scot. r. 2.
,,. 27. Mute. Brit ed. 2. p. 68, SvppL t. 2*—Dicranum puhir
natum, 3. Turn. Mux. Hib. p. 78. t. 3. f. I.?
Discovered by Dr. Greville on stone walla at the fool of Arthur's
Scat, and since found in similar situations in many places, especially
the Highlands of Scotland. Near Dublin, Dr. Scoii and Dr.Stoiet.
N. Wales, Wilton. Fr. Apr.—With the teeth of a Qrimma for only
slightly perforated or split at the summit) this plant baa the foliage and
habit of TrichostomuMt