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Dermatocarpon miniatum (L.) Mann

Synonyms:

Family: VERRUCARIACEAE

Habitat: Aerohaline zone

Description

   Thallus foliose, generally made of a unique lobe attached to the substratum by a central holdfast, 1-3 cm diam., more or less circular, incised at margin, margin sometimes recurved, upper surface pruinose, chalk-whitish when dry, pale grey, pale grey-green to pale grey-brown when humid, lower surface smooth to slightly reticulated, pale brown. Numerous perithecia, immersed, 0.2-0.3 mm diam., conspicuous as small black dots dispersed all over the thallus. Ascospores colourless, simple, ellipsoid, 8-14 x 5-7 µm. Photobiont: chlorococcoide. Chemical spot tests negative. In Brittany, this species has oceanic trends, growing on more or less humid and vertical walls of calcareous or weakly acidic rocks (kersantite, schists), near the sea shore. N.B. Ressembles to Umbicularia but the latter has no perithecia.*







Dermatocarpon miniatum Face inférieure Provence Oppedette 1
Bernard BOUFFINIER



Dermatocarpon miniatum Port Merrien 1
Bernard BOUFFINIER



Dermatocarpon miniatum Port Merrien 7
Bernard BOUFFINIER



Dermatocarpon miniatum Port Merrien 3
Bernard BOUFFINIER



Dermatocarpon miniatum La Coruña 2
Antonio Valero Risoto



Dermatocarpon miniatum Port Merrien 2
Bernard BOUFFINIER



Dermatocarpon miniatum Port Merrien 4
Bernard BOUFFINIER



Dermatocarpon miniatum Port Merrien 5
Bernard BOUFFINIER



Dermatocarpon miniatum Face inférieure Port Merrien 6
Bernard BOUFFINIER



Dermatocarpon miniatum Provence Oppedette
Bernard BOUFFINIER



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