Spring Break 2023: Herpothallon rubrocinctum

Herpothallon rubrocinctum, the Christmas lichen;
Collier county, Florida (12 March 2023).
Spring Break 2023

The so-called Christmas lichen is an abundant (and always obvious) species of fungal lichen throughout the Florida peninsula. The red tones you see in this photo can sometimes appear nearly electric-pink in strong sunlight. It’s a striking lichen to come across on the side of a tree, a splash of brilliant reds mixed in with all those earthen tones of brown and green.

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