Rhizocarpon grup geographicum

Crustose saxicolous, on silicic rocks. Green-yellow.
Apothecia (1-1,5) mm diam., black.
Ascospores dark-brown, muriform, 20-50x10-20 µm
Permian sandstones, conglomerates and lutites. Coll de Laguén
Permian sandstones, conglomerates and lutite
Rhizocarpon grup geographicum (green-yellow tallus)
Ecology, geology: Conglomerates, sandstone and lutites (Permian)
Altitude: 1.485 m
Location: Coll de Laguén - Adraen (Alt Urgell)
Climate: Mediterranean pyrenean occidental (Tmm=10,2ºC, AT=18,5ºC, 650,8mm)
Rhizocarpon grup geographicum X20

Rhizocarpon grup geographicum - spores X1000
Rhizocarpon grup geographicum - algal cells X1000
Common name: map lichen

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