Diplotomma chlorophaeum Caliciaceae
Diplotomma chlorophaeum

Growth type crustose. 1st Dorset record of this species
Chemical results: K+ yellow > red, C-, P+ yellow-orange

Usually on slightly bird enriched acidic rocks in the 'orange-zone' on rocky shores, sea walls and on sandy mortar. Occasional in inland habitats

Variable, the thallus either thick and white or thin and pale greyish, prothallus absent. Apothecia flat becoming convex and not pruinose, discs black and the thalline exciple soon disappearing. The spores are 3-septate to submuriform, 15-24(-27) x (7-)10-12 µm. Micrographs below.

Similar: Diplotomma alboatrum is K-, C-, P-


Diplotomma chlorophaeum

Diplotomma chlorophaeum

Microscope photographs
Diplotomma chlorophaeum

Diplotomma chlorophaeum

Diplotomma chlorophaeum
Diplotomma chlorophaeum
On brick. Colehill, Dorset. February 2017

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