Acarospora anomala H. Magn.

Göteb. Vetensk.-och Vitter.-Handl., ser. 4, 28, 2: 133, 1924.
Synonyms:
Distribution: N - TAA (Nascimbene & al. 2007b).
Description: Thallus crustose, episubstratic, minutely areolate, without a distinct prothallus, forming patches of a few cm in diam. Areoles 0.4-0.6(-1) mm wide, contiguous, rounded to irregular, flat to usually convex, deep brown to reddish brown, pale and ecorticate in lower part, epruinose. Apothecia lecanorine, 0.1-0.4 mm across, rounded, 1-3 per areole, immersed, with a dark brown, usually flat disc, and a usually paler brown, raised, smooth thalline margin, tending to become pseudogyrose when old. Epithecium yellowish brown; hymenium colourless, 85-100 µm high, paraphyses 15-1.7 µm thick, the apical cells capitate and 3-4 µm wide; hypothecium colourless, c. 20 µm high. Asci 100-200-spored, clavate, the apical dome K/I-. Ascospores 1-celled, hyaline, narrowly ellipsoid, 3-5 x 1.5-1.7 µm. Photobiont chlorococcoid. Spot tests: thallus and medulla K-, C-, KC-, P-, UV-. Chemistry: no lichen substances.
Note: a poorly known species of eutrophicated, dry and hard lignum, closely related to, and possibly a synonym of other saxicolous species of the A. nitrophila complex. Hitherto reported from Scandinavia and the Alps. A dubious record from Campania by Garofalo & al. (1999) is not accepted here.
Growth form: Crustose
Substrata: lignum
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Poorly known taxon in need of further study

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: extremely rare
Oromediterranean belt: absent
Montane belt: extremely rare
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: absent


pH of the substrata:

(info)

1

2

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4

5

Solar irradiation:

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1

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5

Aridity:

(info)

1

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4

5

Eutrophication:

(info)

1

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5

Poleotolerance:

(info)

0

1

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3

Altitudinal distribution:

(info)

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5




Natural History Museum London - Source: https://mycoportal.org/portal/taxa/index.php?taxon=83801


Natural History Museum London - Source: https://mycoportal.org/portal/taxa/index.php?taxon=83801