The English flora - SeaweedAfrica

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Lecidea.] LI CHEN ES. 175
6. L. cechumcna, Ach. Meth. (confused blach and alive Lecidea);
crust determinate tessellated olive-grey with blackish cracks,
apothecia black at length convex with a black border of their own
substance. Ach. Meth, p. 42. Lichen ccchununus, E. Bat. t. 1830.
—Lecidea, fumosa, Ach. Syn. p. 12.
(3.athrocarpa ; crest determinate
tessellated pale brownish-olive polished its fragments
tumid and angular, apothecia sunk black flattish crowded with
a narrow whitish spurious border. Sni— Ach. Lich. Umv,
p. 157.
a. On granite and whin-stone rocks, N. of England, Rev. Mr.
Hnrriman.—/3. Rocks in mountainous places, Durham, Rev Mr. lbnrlman.—The
/3. athocarpa Mr. Borrer observes, " Acharius makes a var. of
Ij.ccehumcna in Lich. Univ. and in the Synopsis joins the two ami giv< -
them as a synonym of L.fumosa. He also quotes the Lichen gihhosus.
Dicks, as sent by Harriman." I know too little of these Lichens to offer
an opinion. If such men as Acharius and Borrer are in doubt about a
common Lichen, who then shall venture to decide'?
7. L. petrcea, Ach. (rock Leridea); crust thin orbicular minutely
waited somewhat powdery white, apothecia innate with
the crust protuberant somewhat concentric black. Ach. Syn.
p. 13. Lichen petrceus, Jacq. Coll. v. 3. p. 116. t. 6.f.'2.
Lichen concentricus, Davies.—Dicks.—E. Bo', t. 246.
L.
Rocks and stones, Mr. Dickson.
8. L. confluent, Ach. (confluent- shielded Lecidea); cruel
somewhat uneven tessellated of a smoky white, apothecia sessile
black with a black border at length convex confluent and angular.
Sm.—Ach. Syn. p. 16 Lichen confltiens, E. Bot. t. 1964.
On rocks and stones, frequent.— Acharius observes that the crust is
sometimes suffused with an ochraceous tinge and that sometimes it is
wanting.
9. L. lapicida, Ach. (contiguous-shielded Lecidea); crust
glaucous-white tessellated and granulated depressed flattish
angular black with a narrow black elevated border. Sni.—
Arh. Syn. p. 13 Lichen contiguvj, E.li»i.t. S21. (ruj Ver-
rucaria contigua, Hqffm.)— (3. diacapris} crust bluish-white tartareous
it- surface composed of minute undulations, apothecia
clustered somewhat sunk, their dUk Hat black or brown their
hordrr thick externally black its inner edge whitish. S/n.—
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Urceoiaria diacapsis, Ach. Syn, j>. 142.
lint. t. 1954.
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Lichen diacapsis ,
Durham.— On brick-walls.—-0. Lancashire an. I
Mr. Borrer I refer the Lichen diacapsis, L. l>t. ( Urceolmrim, ./anie Botanic C0mis\srS M
belonging to Lcc. vjridinfya, .t. L. janniiiiiihi. Borr. (mvnunent tnuiu-shielded warty Leddea);
crust thin somewhat tartareous minutelv wart] smokr-
mi.-\ »»r brownish, apothecia superficial small black internally
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