Ramalinaceae Toniniopsis bagliettoana (Bacidia bagliettoana) Growth type crustose Chemistry and UV-. Hypothecium dark-red, K+ intensifying red Occurs over plant debris and mosses on calcareous rocks and old walls and directly on the ground in dunes and calcareous grassland Granular whitish or pale grey-green thallus, the initially flat black apothecia becoming convex with age. Spores 3-7 septate, 25-45 x 2-2.5(-3) µm. Hypothecium red-brown, epithecium green. Micro photo below. Similar: Bacidia herbarum. Red-brown apothecia, spores 36-60 x 2-2.5 µm. Hypothecium K-, pale orange-brown. Bilimbia sabuletorum has paler discs and wider spores (5-8 µm wide)

Microscope photograph

Bacidia bagliettoana
Brands Bay, Studland, Dorset. January 2014