''Verrucaria bernaicensis'' is a species of saxicolous (rock-dwelling), crustose lichen in the family

Verrucariaceae The Verrucariaceae are a family of mostly lichenised fungi in the order Verrucariales. The lichen-forming species, which comprise the vast majority of the family, have a wide variety of thallus forms, and include crustose (crust-like), foliose ( ...

. It was first formally described by

Alexandre François Malbranche Alexandre François Malbranche (6 April 1818, Bernay, Eure – 16 May 1888, Rouen) was a French pharmacist, botanist and mycologist. He is known for his botanical and mycological studies associated with Normandy, He received his education in Rouen, ...

in 1869. It has a dull, pale grey thallus that is areolate to somewhat

squamulose A squamulose lichen is a lichen that is composed of small, often overlapping "scales" called squamules. If they are raised from the substrate and appear leafy, the lichen may appear to be a foliose lichen, but the underside does not have a "skin ...

in form. Its perithecia are immersed in the substrata, measure 0.2–0.3 mm in diameter, and lack an involucrellum. Its ascospores are broadly

ellipsoid An ellipsoid is a surface that may be obtained from a sphere by deforming it by means of directional scalings, or more generally, of an affine transformation. An ellipsoid is a quadric surface; that is, a surface that may be defined as the ...

to roughly spherical, measuring 9–11 by 7–9 μm. The lichen has been recorded from Asia, a few European countries, Russia and the Caucasus, and southwestern North America.

References

bernaicensis Lichen species Lichens described in 1869 Lichens of Asia Lichens of Europe Lichens of North America {{Eurotiomycetes-stub

See also

References