Verrucaria squam3929i.jpg

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Verrucaria squamulosa, section through thallus (stained) showing the presence of a thin epinecral layer overlaying the cortex. The epinecral layer in V. squamulosa is usually thinner (c. 5-6 µm thick) than in V. macrostoma (often 10-15 µm thick).

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith