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Description
Description
A variable grey or grey-green crust, ranging from smooth to granular or cracked. Numerous small black apothecia, usually about 0.2–0.6 mm across, have thin rims that can disappear as the discs become convex.
Source: ITALIC — Amandinea punctata
Chemistry
Chemistry
Usually K−, C−, KC−, P−, UV−; a faint yellow K reaction is occasionally reported. No characteristic lichen substances are normally reported.
Source: ITALIC — Amandinea punctata
Habitat and Substrate
Habitat and Substrate
Found on nutrient-rich or nutrient-enriched bark and wood, and also on rocky or artificial surfaces.
Source: ITALIC — Amandinea punctata
Similar Species
Similar Species
Lecidella elaeochroma has a C+ orange reaction and simple spores; Catillaria nigroclavata has different spores. Many rock records assigned to A. punctata require comparison with A. lecideina.
Sources: ITALIC; BLS identification revision
How to Identify
How to Identify
Use the Amandinea key; check brown, one-septate spores and, where present, curved thread-like conidia.
Source: BLS identification revision
Important Links
Important Links
ITALIC — description, chemistry and images
British Lichen Society — species account and British distribution
GBIF — taxonomy and global occurrence records
BLS — illustrated identification sheet
AFL — alphabetical photographic index (general resource)
Identification Bibliography
Identification Bibliography
For identification, use the relevant key and compare the microscopic characters and chemical reactions. Photographs alone may be insufficient for closely similar crustose species.
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