Class SN (ROC)
Roccelletea phycopsis Egea in Bültmann et al. 2015
Ombrophobic and aero-hygrophilous rock lichen communities on calcareous and subacidic substrates of mainly Southern Europe and North Africa
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Diagnostic taxa
Lichens:
Alyxoria mougeotii,
Alyxoria subelevata,
Alyxoria variiformis,
Arthonia meridionalis,
Bactrospora carneopallida,
Dirina immersa,
Dirina insulana,
Dirina massiliensis morphotype massiliensis,
Dirina massiliensis morphotype sorediata,
Dirina paradoxa subsp. africana,
Lecanographa dialeuca,
Lecanographa farinosa,
Lecanographa subgrumulosa,
Lecanographa werneri,
Llimonaea sorediata,
Opegrapha cesareensis,
Opegrapha durieui,
Opegrapha lutulenta,
Paralecanographa grumulosa,
Roccella canariensis,
Roccella fuciformis,
Roccella maderensis,
Roccella phycopsis,
Roccella teneriffensis,
Roccella tinctoria,
Roccella tuberculata,
Roccellographa circumscripta,
Thelopsis isiaca