The English flora - SeaweedAfrica

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Grimmia.] MUSCI-ACROCARPI-PERISTOMJ. '2/
Fl. Brit. p. 1214. E. Bot. t. 2165. Turn. Muse. Hib. p. 77
Bryum ovale, Dicks. Cr. Fuse. 4. p. 14.
Rocks, principally in alpine situations. Fr. June*
10. G. Donidna, Sm. (Donian Grimmia); stems short, leaves
lanceolato-subulate produced into long diaphanous hair-like
points their margins incurved, capsule ovate, teeth of the peristome
quite entire, lid shortly rostrate. Fl. Brit. p. 1198.
E. Bot. t. 1259. Hobs. Br. 3Iosses, v. 1. n. 27. Muse. Brit,
ed. 2. p. 72. t. 13.— G. sudetica? Schiuaegr. Suppl. v. 1. t. 24.
Alpine rocks. Fr. April. (WUs.') Aug.— Always much smaller than
G. ovata, with the teeth of the peristome quite entire; nor have I ever
seen any intermediate states.
11. G. atrdta, Mielich. (black tufted Grimmia); stems elongated
very compact, leaves dense erecto-patent linear-lanceo-
late rigid obtuse slightly keeled destitute of hair-like points,
capsule cylindrical, lid conical with a short somewhat oblique
thick beak, teeth narrow-lanceolate (yellow) marked with a line
or occasionally split. Mielichoffer in Hoppe and Hornsch. PL
Select.—Hornsch. in Bot. Zeit. 1819. p. 85. Schwaegr. Suppl.
v. 2. P. 2. t. 116. Hook. Muse. Exot. v. 2. t. 100; (small specimens,
but otherwise very characteristic). Bryol.Germ. r. 2./;. 164.
t. 23. f. 19 ; (capsules too short). Schwaegr. Suppl. II. P. 2.
p. 59. V. 116; (good).
Rocks above Glen Callater; Dr. Greville, 1830 Fr. (scarcely
mature) Aug.— Hitherto I believe this very distinct Grimmia had only
been found on the Alps of Saltzburg. The stems and thickened branches
are very densely tufted. The leaves are almost black, except the uppermost,
which incline to green. The seta is rather thick, yellowish, orangecoloured
at the base. Capsule truly, but broadly cylindrical. Lid with a
short slightly inclined beak. Peristome pale yellow.
.-12. G. unicolor, Plook. (dingy Grimmia); stems elongated
Blender rather loosely tufted, leaves lax erect from a broad base
Linear-lanceolate rigid obtuse keeled upwards destitute of
hair-like points, capsule elliptical, lid with a subulate in-
clined beak, teeth narrow-laneeolate (red) entire. Hook, in
Drum. Muse. Scot r. 2. p. 32. Grev. Scot Cr. Fl. t. 123.
MUSC. Hi it. at. '1. /,. 72. Suppl. t. 3.— (i. atrata, Hook, in Drum.
Muse. Aimric. n. 57. (nut MiiUch.)
Abundant on the steep, almost perpendicular, lace of an exposed rock
Above Bachnagairn, a hunting Lodge belonging to the Hon. D. Qgityie,at
tin- head of Clova, Angus-shire; Mr. T. Druwmond, Fr. Aug.—Allied to
the last, but truly distinct, although I had myself confounded the
American specimens from Lake Superior, vrith the Q, mtrata. The
whole plant is of a browner hue and mOK opaque, the stems are quite
slender, the leave* crei t, broader at the base, narrower and more keeled
upwards. Capsule broader and shorter, /w./ with a rerj slender, inclined
beak, often half as long BS the capsule. Teeth deep red, not marked
.
with a line, nor el. ft. IV.. m the stem--, filiform barren branch
quenth arise, Clothed with minute imbricated
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o\ Cati/ntnt
mitriforin, sometimes eventually dimidiate, as in / '. liostuma.
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