The English flora - SeaweedAfrica

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184 LICHENES. [Lecidea.
54. L. ferruginea, (rusty'-shielded Lecidea); crust spreading
thin rugged greyish-white, apothecia rusty-orange at length
convex with a waved border of the same colour. Lichen
Lecanora
cinereofusca, Ach. Syn. p. 43 L. ccesio-rufa, Ach. Syn. p. 44.
On rocks and stones, and on the bark of trees.
ferrugineus, Huds. Angl p. 526. E. Bot. t. 1650
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55. L. subcarnea, Ach. (flesh-colouredfruited Lecidea); crust
tartareous subdeterminate cracked white, apothecia flesh-coloured
at length convex conglomerate distorted the disk smooth
pruinose the border naked prominent. Ach. Syn. p. 45.
Rocks, Scotland, Mr. Dickson in Mr. Borrer's Herb.
56. L. icmadophila, Ach. (Heath Lecidea); crust leprous unequal
granulated greenish-white, apothecia nearly sessile plane
flesh-coloured at length flexuose and the disk wrinkled with an
obsolete border. Ach. Syn. p. 45 Lichen icmadophila, Linn.
Suppl. p. 450. Lichen ericetorum, Ehrh.—E. Bot. t. 372.
Turfy places, under the shade of heath, frequent.— Linnaeus confounded
this with the Bceomyces roseus, which the apothecia somewhat
resemble in size, as they and the crust do in colour.
57. L. privigna, Ach. Meth. (obsolete-crusted Lecidea); crust
scarcely any, apothecia sessile concave olive-brown with a
thick elevated border darker than the disk. Ach. Meth. p. 49.
Lichen sim-
—Lecanora milvina, {3. privigna, Ach. Syn. p. 151
plex, E. Bot. t. 2152, (the figure on sandstone.)
On white sandstone, Durham, Rev. Mr. Harriman.—This I am
only acquainted with from the figure in E. Bot. For the synonyms I
stand indebted to Mr. Borrer.
58. L. marmorea, Ach. (salmon-coloured Lecidea^); crust pale
thin scattered, apothecia subglobose salmon-coloured at length
urceolate with a very thick elevated inflexed pale flesh-coloured
often crenate border sometimes a little pulverulent. Ach. Syn.
p. 46 Lichen marmoreus, Dichs. Cr. Ease. 2. p. 18. E. Bot.
t. 739.—L. cupularis, Hedw. St. Cr. v. 2. p. 58. t, 20. /. B.—
L. tricolor, With Gycdecta cupularis, ScJicer. Lich. Helv. p. 79.
n. 135.
On rocks, especially schistose and calcareous, often spreading over decayed
mosses, chiefly in subalpine countries.
59. L. alahastrina, Ach. (Alabaster Lecidea); crust thin
smooth and subpruinose white and subglaucescent, apothecia
plano-convex entire of the same colour as the crust the disk
whitish rose-colour. Ach. Syn. p. 46. Lichen rosellus, E. Bot.
*. 1651?
Trees, New Forest, Hants, Miss Biddulph. Scotland, Mr. D. Turner,
(if L. rosellus, E. Bot. be the same).— This is as unknown to me
as it is to Mr. Borrer, who, however, observes that Acharius appears to
have had it from England ; and that he regards the Lichen rosellus of
E. Bot. as a doubtful specimen of the same plant.
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