The English flora - SeaweedAfrica

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178 LICHENES. [Lecidea.
miscella, Ac/i. Syn. p. 21 ?)
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Patellaria contigua, Hoffm. PL
Lich.
On whin-stone rocks, Durham, Rev. Mr. Haniman.— Mr. Borrer
probably considers the Lecidea miscella of Acharius, as different from
the Lichen miscellus E. Bot., since he does not notice it under that
plant : yet Sir Jas. E. Smith says that Mr. Harriman's specimens were
pronounced by Acharius to be the same.
22. L. geographica, (Map Lecidea'); crust bright-yellow
smooth cracked and tessellated with a black margin and black
between the areola?, apothecia nearly flat and irregular often
confluent even with, the crust black throughout. Lichen geographicus,
Linn. Sp. PL p. 1607. E. Bot. t. 245. L. atro-virens,
Linn. Sp. PL p. 1607. Lecidea atro-virens, var. b. geographica,
Ach. Syn. p. 21.—Dill. Muse. t. 18./. 5.
On rocks and stones, chiefly of trap-formation, in subalpine and
especially mountainous countries.— It seems to be generally allowed
that the Lichen geographicus and atro-virens of Linn, constitute one
species ; and surely the former name, so expressive of its character, is
the one to be preferred.
23. L. sildcea, Ach. (yellow ochrey Lecidea); crust uneven
tessellated yellowish-red, apothecia sessile black with a narrow
black border at length convex often confluent.
—Lichen silaceus, E. Bot. t. 1118.
On rocks, frequent.
Ach. Syn. p. 22.
24. L. (Ederi, Ach. ( Oederian Lecidea); crust thin tessel-
lated of a rusty red, apothecia minute somewhat globose a little
immersed concave black with a thick black border. Sm.—Ach.
Syn. p. 22.
Lichen CEderi, E. Bot. t. 1117. L. ccesius, Dicks.
Cr. Ease. 2. p. 19. t.
6.f. 6.—L. Dicksoni, With.— Urceolaria
(Ederi, Schcsr. Lich. Helv. p. 69. n. 123.
Kocks, in the north of England and Scotland.— This differs from the
preceding in its deeper colour, and in its more numerous and smaller apo-
thecia with their broad border. Mr. Schaerar considers it to be a true
Urceolaria.
25. L. flavo-virescens, Borr. Mss. {Lemon-coloured Lecidea);
crust leprous granulated friable lemon- coloured, apothecia black
globose solitary or aggregated. Sm.—Lichen Jlavo-virescens,
Dicks. Cr. Ease. 3. p. 13. t. S.f. 9 Lecidea citrinella, Ach. Syn.
p. 25 Lichen citrin., E. Bot. t. 1877.
On the ground, in sandy places.
26. L. scabrosa, Ach. Meth. {rugged-shielded Sulphur Lecidea);
crust powdery pale yellowish-green, apothecia sunk in the crust
aggregate black with an elevated black border. Sm.—Lichen
scabrosus, E. Bot. t. 1878. Lecidea citrinella, (3. scabrosa, Ach.
Syn. p. 25.
On tiled roofs and on flints, in Sussex, Mr. Borrer.—This has a
great affinity to the last, with which Acharius and Wahlenberg join it
its crust is " thinner, of a paler green, more truly powdery and less granulated
; the apothecia are sunk, so as to be on a level with the crust, and
they have a thick border."
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