Xanthoparmelia conspersa

Thallus yellow-grey or bluish-grey, often glossy. Narrow, overlapping lobes to 3mm wide and much divided. Underside black with short rhizines. Variable covering of coralloid isidia, often abundant. Occasionally fertile producing brown-disced apothecia with thin, contorted margins.

Acid rocks, walls and roofs in exposed areas.

All year.

Common. With a Western distribution.

Frequent. Mostly confined to Charnwood Forest.