Echinoplaca pernambucensis Øvstedal & Elix  

Mycobank MB 517765

Thallus crustose, the basal crust whitish with a green hue, 2–3 cm wide, 100–115 µm thick, corticate but some places cracked and granular. Photobiont a species of Chlorococcaceae, cells 4–6 µm wide (similar to that in E. similis). Calcium oxalate crystals abundant. Numerous conical areolae present on the upper surface, up to 0.2 mm high and 0.2 mm wide, pinkish white, without algae, with a more compact texture than the basal crust, with a central hyphophore. Hyphophores whitish, up to 0.4 mm long, mostly curved, 30–40 µm wide, slightly broader at the apices. No diahyphae, setae or apothecia seen. Secondary chemistry: gyrophoric acid (major), lecanoric acid (minor) and subgyrophoric acid (minor).