Gallowayella hasseana
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Teloschistales
Family: Teloschistaceae
Genus: Gallowayella
Species:
G. hasseana
Binomial name
Gallowayella hasseana
(Räsänen) S.Y.Kondr., Fedorenko, S.Stenroos, Kärnefelt, Elix, Hur & A.Thell (2012)
Synonyms[1]
  • Xanthoria hasseana Räsänen (1944)
  • Xanthomendoza hasseana (Räsänen) Søchting, Kärnefelt & S.Y.Kondr. (2002)
  • Oxneria hasseana (Räsänen) S.Y.Kondr. & Kärnefelt (2003)

Gallowayella hasseana, the poplar sunburst lichen, is a species of corticolous (bark-dwelling), crustose lichen in the family Teloschistaceae.[2] It occurs in North America.

Taxonomy

The lichen was first formally described as a new species in 1944 by Finnish lichenologist Veli Räsänen as Xanthoria hasseana.[3] Over a half-century later, it was transferred to Xanthomendoza.[4] Sergey Kondratyuk and Ingvar Kärnefelt proposed a transfer to genus Oxneria in 2003.[5] In 2012, the genus Gallowayella was circumscribed, and this species transferred to it.[6] The species is commonly known as the "poplar sunburst lichen".[7]

Description

The lichen has a yellowish-orange thallus comprising small, overlapping lobes (measuring 0.3–0.9 mm wide) arranged in a loosely attached rosette. The thallus undersurface is white, and attaches to the bark substrate by relatively long rhizines. There are neither isidia nor soredia on the thallus surface. Apothecia, usually numerous in the center of the thallus, have dark orange discs and are 0.6–3 mm in diameter. Ascospores are ellipsoid in shape with a single septum, and have typical dimensions of 15.5–18 by 7.5–9.5 μm.[7]

Gallowayella hasseana mostly grows on bark (especially poplar bark), although it has occasionally been recorded on rock or on wood. It prefers open or partially shaded areas.[7]

References

  1. ↑ "Synonymy: Gallowayella hasseana (Räsänen) S.Y. Kondr., Fedorenko, S. Stenroos, Kärnefelt, Elix, Hur & A. Thell, in Fedorenko, Stenroos, Thell, Kärnefelt, Elix, Hur & Kondratyuk, Biblthca Lichenol. 108: 57 (2012)". Species Fungorum. Retrieved 1 January 2023.
  2. ↑ "Gallowayella hasseana (Räsänen) S.Y. Kondr., Fedorenko, S. Stenroos, Kärnefelt, Elix, Hur & A. Thell". Catalogue of Life. Species 2000: Leiden, the Netherlands. Retrieved 1 January 2023.
  3. ↑ Räsänen, V. (1944). "Lichenes novi I". Annales Botanici Societatis Zoologicae Botanicae Fennicae "Vanamo". 20 (3): 1–34.
  4. ↑ Kondratyuk, S.; Kärnefelt, I. (1997). "Josefpoeltia and Xanthomendosa, two new genera in the Teloschistaceae (lichenized Ascomycotina)". Bibliotheca Lichenologica. 68: 19–44.
  5. ↑ Kondratyuk, S.Y.; Kärnefelt, I. (2003). "Revision of three natural groups of xanthorioid lichens (Teloschistaceae, Ascomycota)". Ukrainskiy Botanichnyi Zhurnal. 60 (4): 427–437.
  6. ↑ Fedorenko, N.M.; Stenroos, S.; Thell, A.; Kärnefelt, I.; Elix, J.A.; Hur, J.-S.; Kondratyuk, S.Y. (2012). "Molecular phylogeny of xanthorioid lichens (Teloschistaceae, Ascomycota), with notes on their morphology". Bibliotheca Lichenologica. 108: 45–64.
  7. 1 2 3 Brodo, Irwin M.; Sharnoff, Sylvia Duran; Sharnoff, Stephen (2001). Lichens of North America. Yale University Press. p. 746. ISBN 978-0-300-08249-4.
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