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Pertusaria pertusa (Weigel) Tuck.

Synonyms:

Family: PERTUSARIACEAE

Habitat: Ubiquitous

Description

    Thallus crustose, to 5-10 diam., rather thick, smooth to slightly rugose, greyish, grey-greenish, greenish (in continuously shaded habitats), prothallus paler, sometimes heterogeneous, covered with numerous globose warts, irregular, tips flattened and restricted at base, 1-3 mm tall, 1-2 mm diam.. Apothecia numerous at the tips of fertile warts, clustered by 1-10, punctiform, seldom well opened, disc blackish at the bottom of a minute crater. Ascii 2-spored, Ascospores narrowly fusiform, thick walls,  150-250 x 40-80 µm. C-, K+ yellow, KC+ yelow, Pd+ orange, UV+ orange. Not especially maritime species common on smooth or rough bark of tree trunks, much rarer on mossy rocks, see Pertusaria pertusa var. rupestris and Pertusaria rupestris var. rupestris forma and thus easy to confuse with fertile forms of Pertusaria usually infertile in particular with Pertusaria pseudocorallina. 







Pertusaria pertusa ForĂȘt du Cranou 1
Alain GERAULT



Pertusaria pertusa ForĂȘt du Cranou 2
Alain GERAULT



Pertusaria pertusa ForĂȘt du Cranou 3
Alain GERAULT



Pertusaria pertusa Morlaix
Alain GERAULT



Pertusaria pertusa Morlaix 2
Alain GERAULT



Pertusaria pertusa Stangala
Bernard BOUFFINIER



Pertusaria pertusa Landévennec 1
Bernard BOUFFINIER



Pertusaria pertusa Landévennec 2
Michel DAVID



Pertusaria pertusa Pont Aven
Alain GERAULT



Pertusaria pertusa Asque Ă  2 spores
Jacques HAINE



Pertusaria pertusa Spore et asques immatures Ardenne belge
Jacques HAINE



Pertusaria pertusa Kergoat 1
Jacques HAINE



Pertusaria pertusa Coupe apothécie Kergoat 2
Jacques HAINE



Pertusaria pertusa Asque et spores Bleu Coton Kergoat 3
Jacques HAINE



Pertusaria pertusa Spores Bleu Coton Kergoat 4
Jacques HAINE



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