Verrucaria maura is a crustose lichen that grows on costaline rocks. This photo was taken in Ribadeo, Lugo, Galicia, Spain.

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Size: 8256px × 5504px
Photo credit: © José María Barres Manuel / Alamy / Afripics
License: Royalty Free
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Keywords: black, coastline, crustose, fungi, galicia, horizontal, lichen, lugo, maura, ribadeo, spain, symbiosis, verrucaria