Caloplaca microthallina Teloschistaceae
Flavoplaca microthallina (Caloplaca microthallina)

Growth type crustose
Chemical results: K+ crimson

A maritime species often found parasitic on the thallus of Verrucaria maura or following cracks on acidic or calcareous coastal rocks

Thallus of minute clustered or scattered yellow or orange-yellow lobes or squamules, prothallus absent. Conspicuous orange apothecia with crenulate margins, spores polarilocular, 12-15 x 6-8 Ám, septum 2-3 Ám wide. Soredia and isidia are absent.

Caloplaca microthallina

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