Lichen: Diplotomma alboatrum
Name: Diplotomma alboatrum (Hoffm.) Flot.
Pronunciation: Diplotomma alboatrum
Conservation Evaluation: Least Concern Body Type: Crustose
Description: The thallus is white to grey and rather lumpy. The apothecia are numerous and range from small immature ones to larger mature types. The disc surface is flat to convex and frequently pruinose. The spores are colourless or brown and 3-septate.
Chemical Tests: All reactions negative.
Nature Notes: Found in coastal areas, particularly on limestone and schists (Cork coast); also found on coarse nutrient-rich bark of deciduous trees such as Ulmus and Fraxinus. It is sometimes found as a parasite on Caloplaca and Xanthoria species.
Link: Map this species on the Lichen Survey
- Diplotomma alboatrum (Hoffm.) Flot.
- Diplotomma chlorophaeum (Hepp ex Leight.) Kr.P.Singh & S.R.Singh
- Diplotomma murorum (A.Massal.) Coppins
Text and images © Paul Whelan, 2009.