Xanthocarpia feracissima is a species of saxicolous, crustose lichen in the family Teloschistaceae. It was first formally described as a new species in 1953 by Swedish lichenologist Adolf Hugo Magnusson, as a member of the genus Caloplaca. The type specimen was collected in 1939 by John Walter Thomson in Lake Koshkonong, Wisconsin. In the original description, Magnusson notes a similarity to the lichen now known as Gyalolechia flavovirescens, but distinguishes the new species by its lack of a visible thallus, the sordid-reddish color of its discs, and the "unusually narrow" septa of the spores.
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Is it poisonous?
We have no record of Sidewalk firedot being toxic, poisonous or venomous. That is not proof that it is safe. Never eat, touch or handle a wild plant, mushroom or animal on the strength of an identification; ask someone qualified.
Easily confused with
- Athallia holocarpa
- Polycauliona bolacina
- Squamulea subsoluta
- Gyalolechia flavovirescens
- Protoblastenia rupestris
- Flavoplaca flavocitrina
Classification
- Kingdom
- Fungi
- Phylum
- Ascomycota
- Class
- Lecanoromycetes
- Order
- Teloschistales
- Family
- Teloschistaceae
- Genus
- Xanthocarpia
- Species
- Xanthocarpia feracissima
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