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Petractis
Sign in to savePetractis is a small genus of lichen-forming fungi of uncertain familial and ordinal placement in the Lecanoromycetes. These inconspicuous lichens grow as thin crusts embedded within rock surfaces, partnering with cyanobacteria to form barely visible films that are primarily detected by their small, star-shaped fruiting bodies. The genus contains two species that typically inhabit calcareous rocks, where their fruiting structures create distinctive pits in the stone surface after they decay.
Species
GENUS
- KingdomFungi
- PhylumAscomycota
- ClassLecanoromycetes
- OrderOstropales
- FamilyStictidaceae
via GBIF
Museum specimens
- Specimen records
- 6
- With media
- 2
- Family
- Ramalinaceae
- Collections
- BPI, COLO, UPS
- Recorded in
- Costa Rica, United States, Sweden, France
Wikidata facts
- Instance of
- taxon
- Parent taxon
- Stictidaceae
Show 4 more facts
- taxon common name
- petractis
- taxon name
- Petractis
- taxon rank
- genus
- taxon author citation
- Fr.
via Wikidata · CC0
~4 min read
Encyclopedic overview
4 sectionsContents
- Taxonomy
- Description
- Species
- References
Petractis is a small genus of lichen-forming fungi of uncertain familial and ordinal placement in the Lecanoromycetes. These inconspicuous lichens grow as thin crusts embedded within rock surfaces, partnering with cyanobacteria to form barely visible films that are primarily detected by their small, star-shaped fruiting bodies. The genus contains two species that typically inhabit calcareous rocks, where their fruiting structures create distinctive pits in the stone surface after they decay.
==Taxonomy==
Excerpted from Wikipedia’s “Petractis” article, available under the CC BY-SA 4.0 licence.