Bacidina egenula (Nyl.) Vězda

Folia Geobot. Phytotaxon., 25: 432, 1991. Basionym: Lecidea egenula Nyl. - Flora, 48: 147, 1865.
Synonyms: Bacidia egenula (Nyl.) Arnold; Bacidia epiphylla Wheldon & Travis; Bacidia genuensis B. de Lesd.; Bacidia mediterranea B. de Lesd.; Bacidia peltigericola Vain.; Bacidia sbarbaronis B. de Lesd.
Distribution: N - Lomb (UPS-L166833), Lig. C - Camp (Aprile & al. 2002), Cal (Puntillo 2011).
Note: a mild-temperate to humid subtropical species, most common on pebbles over moist ground in areas with siliceous substrata; certainly overlooked and probably more widespread in Tyrrhenian Italy, with outposts in the Insubrian District of the Alps.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Most common in areas with a humid-warm climate (e.g. most of Tyrrenian Italy)

Commonnes-rarity: (info)

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


pH of the substrata:

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Solar irradiation:

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Aridity:

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Eutrophication:

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Poleotolerance:

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Altitudinal distribution:

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Author: André Aptroot. Source: http://www.tropicallichens.net/ CC BY-SA-NC