Heteroplacidium acervatum

Squamulose, on calcareous rocks or over a accumulation of soils.
Note: squamules 0,3-3 mm, greyish towards the margins, forming compact cushion-like aggregations. Bundles of rhizopyphae forming a stipe-like organ.
Upper cortex paraplectenchymatous:
Medulla composed of spherical hyphae:
Perithecia globose pale, ostiole brown:
Asci clavate with biseriate spores, simple, 11-13 x 5-6 micras:
Lithology: clay
Altitude: 245 m
Municipality: Almería