Caloplaca trachyphylla

Caloplaca trachyphylla (desert firedot lichen)[1]:27 is an orange crustose lichen that grows on rock in Europe, North America, and northern Asia. Crostose placoidioid lobes are elongate.

Caloplaca trachyphylla
Firedot Lichen (Caloplaca trachyphylla), Mount Baden-Powell, San Gabriel Mountains, Southern California
Scientific classification
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C. trachyphylla
Binomial name
Caloplaca trachyphylla

It differs from Caloplaca saxicola in that C. trachyphylla it has a larger thallus and has lobes with tiny warts on them (verruculose).

References

  1. The Laws Field Guide to the Sierra Nevada, John Muir Laws , 2007
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