Gyrocollema

Gyrocollema
Scientific classification
Kingdom: Fungi
Division: Ascomycota
Class: Lichinomycetes
Order: Lichinales
Family: Porocyphaceae
Genus: Gyrocollema
Vain. (1929)
Type species
Gyrocollema scyphuliferum
Vain. (1929)
Species

G. rupestrinum
G. scyphuliferum

Gyrocollema is a small genus of cyanolichens placed in the family Porocyphaceae. A 2024 multilocus study of the class Lichinomycetes emended Porocyphaceae and provisionally included Gyrocollema in that family; earlier sources classified it in Lichinaceae. Species are tiny, dark lichens associated with cyanobacteria and typically occur on rock in well-lit sites that are intermittently wet. Two names are widely cited, though the circumscription and family placement remain tentative pending additional sampling.[1]

The genus, which was originally erected by the Finnish lichenologist Edvard August Vainio in 1929,[2] comprises two species:[3]

  • Gyrocollema rupestrinum (Zahlbr.) Henssen (1986)
  • Gyrocollema scyphuliferum Vain. (1929)

References

  1. ^ Prieto, M.; Wedin, M.; Schultz, M. (2024). "Phylogeny, evolution and a re-classification of the Lichinomycetes". Studies in Mycology. 109: 595–655. doi:10.3114/sim.2024.109.09. PMC 11663425. PMID 39717657.
  2. ^ Vainio, E.A. (1929). "New species of lichens from Porto Rico. II". Mycologia. 21 (1): 33–40.
  3. ^ "Gyrocollema". Catalogue of Life. Species 2000: Leiden, the Netherlands. Retrieved 29 September 2025.