Buellia atrocinerella (Nyl.) Scheid.

Lichenologist, 25: 345, 1993. Basionym: Lecanora atrocinerella Nyl. - Flora, 55: 428, 1872.
Synonyms: Rinodina atrocinerella (Nyl.) Boistel
Distribution: N - Lig (GDOR 1618). C - Tosc (Nascimbene & al. 2021), Sar (Scheidegger 1993).
Description: Thallus crustose, episubstratic, dull brownish grey, rimose to areolate, with clearly elongate marginal areoles but not placodioid. Cortex of anticlinally arranged, cellular hyphae, the terminal cells swollen, with brown caps; medulla white, I-. Apothecia biatorine, 0.2-0.3 mm across, innate, with a black disc and a narrow, brown proper margin. Proper exciple thin, Aethalea-type, the inner hyphae hyaline, prosoplectenchymatous, the outer hyphae parallel and usually strongly brown-pigmented, N-; epithecium brown, N-; hymenium colourless, without oil droplets, c. 75 µm high; hypothecium dark brown. Asci 8-spored, clavate, Bacidia-type. Ascospores 1-septate, not constricted at septum, brown, oblong, 10-12 x 7-8 µm, Buellia-type, with a smooth wall. Photobiont chlorococcoid. Spot tests: thallus K+ yellow turning red, C-, KC-, P+ yellow-orange. Chemistry; norstictic and connorstictic acids.
Note: a Mediterranean species of hard siliceous rocks in warm-dry habitats, sometimes growing on other crustose lichens.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
paras crustose lichens

Commonnes-rarity: (info)

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

pH of the substrata:


Solar irradiation:








Altitudinal distribution:


Predictive model
Herbarium samples

S. Poumarat - Source: http://mycologie.catalogne.free.fr/lichens.htm