Irish lichens

Lecanora dispersa
Order: Lecanorales       Family: Lecanoraceae

Species: Lecanora dispersa

Growth type crustose.
Photos: On upland and coastal rocks. Co. Cork, SW Ireland.

Thin or evanescent, light-grey or whitish thallus. Small apothecia, pale greenish-grey to dark-brown, sometimes white-pruinose with entire margins that become flexuose or slightly crenulate. Asci 8-spored, 50-65 x 12-18 Ám. Spores simple, (7-)8.5-14 x (3-)4-7 Ám. Microscope photograph below.
Chemical reactions negative.

Common and pollution-resistant. Occurs in urban and rural locations on a wide range of nutrient-rich basic substrates.

Lecanora dispersa

Lecanora dispersa

Microscope photograph
Lecanora dispersa
Lecanora dispersa February 2009 and March 2012

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