The English flora - SeaweedAfrica

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Calicium.] LICHENES. 139
3. C. tigilldre, Pers. (yellow sessile Rail Calicium); crust
granulated tartareous bright greenish-yellow with large warts
scattered over the surface, pilidia somewhat immersed in the
warts (sessile) plano-convex black with an elevated tumid
border, sporules black. Turn, and Borr. Licit. Br. p. 133. Acli.
Syn. p. 55.—Lie/ten tigillaris, Ach. Meth. p. 46. t. 2. f. 1.
Old pales and rails, rarely on trees, in Essex and Suffolk.— This extremely
beautiful Calicium is distinguished by its bright-coloured widespreading
crust, with black, apparently entirely sessile, apothecia Mink in
the crust; so that the plant looks, at first sight, like a Lecidea: but the
apothecia are those of a Calicium, and Acharius says that they are sometimes
borne on a very short stipes.
4. C. tympanellum, Aeh. ( sooty -fruited Calicium); crust
granulated tartareous greyish-white, pilidia turbinate (sessile)
partly immersed black with a thin erect whitish border, sporules
pruinose. Ach. Syn, p. 56. Turn, and Borr. Lick. Br. p. 134.
—Lichen inquinans, E. Bot. t. 810.
On old pales, and especially on the tops of posts, not uncommon:
sometimes on the bark of trees.— This, from its almost entirely sessile
and immersed pilidia, differs remarkably from the really stipitate Calicin.
Its fructifications are, however, large, and the plant may be easily
recognized by the readiness with which the profuse sporules detach
themselves on being touched; so that on the application of the finger,
an impression is received of as many apothecia as have been covered by
it. The favourite situation of this plant is the tops of old posts, growing
upon them, and therefore, transversely with the grain of the wood.
5. C. femtgineum, Turn, and Borr. (rusty Calicium); crust
granulated tartareous whitish with scattered rust-coloured
spots, pilidia stipitate and sessile, rapitulum turbinate, sporules
rust-coloured covering the border. Turn, and Borr, Lick. Br.
p. 136. B, Bot. t. 2473.
Old pales, Norfolk and Suffolk.— Crust of Several inches in extent,
composed of looserj cohering greyish granules, of a greyish-white,
marked with yellowish rust-coloured spots, which render the plant COO*
Bpicuous. Pilidia sometimes confluent, sometimes partiallj immersed in
tlie crust. Stipes very short and thick.
** Apothecia stipitate.
i). 0. elan ///////, Turn, and Borr, (arey-crusted Calicium);
crust granulated tartareous whitish, pilidia stipitate. capitulum
turbinate csesious beneath with a thin elevated ccesious border,
sporules black. Turn, and Borr* [Ach Br,p.l8&,— ( '.< Iae,cnlarc,
Ach. Syn. p. 67. Lichen ckwdlut, II. Bot t. L465.
Frequent on boarded buildings, in England. Auchindeny, Scotland,
J)i. Greville,— Crtut greyish-white, in wide but interrupted
lies. Stipes straight, moderately long. Apothccium covered at first
with a grej pellicle*
7. ('. hyp dhiu. Ach. (bright-y lUno Calicium); crust granu-
lated somewhat tartareous, pilidia stipitate, capitulum nearlj
hemispherical brownish-black, sporules fuliginous the