Description: This crustose lichen has a slightly thicker and more wrinkly-uneven, grey, edge-zoned thallus than its look-a-like, P. amara, and white granular soredia that frequently coalesce into large, lumpier clumps. If a taste-test is carried out it will prove negative. Mature sheltered trees, frequent.

Key Identification Features:

• Scattered lumpy-white soredia on a grey thallus
• Taste-test for oxalic acid — negative (see P. amara).

Original text submitted by Vince J. Giavarini

Distribution Map from NBN: Lepra albescens var. albescens at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Lepra albescens var. albescens at iNaturalist World Species Observations database.