- Diplotomma murorum (A.Massal.) Coppins
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Virtually identical to D. alboatrum (described elsewhere), but the thallus is usually thinner and can be powdery. Discs are pronounced, soon convex and thickly pruinose. It grows on Caloplaca teicholyta. Its species status is in doubt. Western Ireland, County Galway.
Key characteristics
- Thallus thin and often powdery; more so than in typical D. alboatrum
- Lichenicolous on Caloplaca teicholyta.
Original text submitted by Vince J. Giavarini