Historically published only as a variety of broad X. parallela from Moravia (Servít 1910). However, the reference specimen actually represents a poorly developed thallus of X. parallela s. str. Xylographa pallens was verified only recently from the Krkonoše Mts and Šumava Mts (Malíček et al. 2014). Afterwards, it was also collected in the Brdy hills and Jeseníky Mts. Boreal species, on conifer wood in open, often old-growth forests, but also at edges of screes. Widely distributed but rarely recorded in the Northern Hemisphere.
Distinguished from morphologically and ecologically similar species X. parallela by apothecia, which tend to grow in all directions when mature, forming star-like arrangements. Episubstratal thallus is formed locally (Spribille et al. 2014). Little known Xylographa, some of herbarium specimens of X. parallela potentially include X. pallens.
Literature: Servít M. (1910): První příspěvek k lichenologii. – Zprávy Kommisse pro přírodovědecké prozkoumání Moravy 6: 1−83. Malíček J., Palice Z. & Vondrák J. (2014): New lichen records and rediscoveries from the Czech Republic and Slovakia. – Herzogia 27: 257–284. Spribille T., Resl P., Ahti T., Pérez-Ortega S., Tønsberg T., Mayrhofer H. & Lumbsch H. T. (2014): Molecular systematics of the wood-inhabiting, lichen-forming genus Xylographa (Baeomycetales, Ostropomycetidae) with eight new species. – Symbolae Botanicae Upsalienses 37: 1−87.
taxonomic classification:Ascomycota → Lecanoromycetes → Trapeliales → Xylographaceae → Xylographa
most frequented synonyms:Xylographa abietina var. pallensRed List (Malíček 2023):C3 – endangered
Occurrence in the Czech Republic
All records: 15, confirmed 14. One click on a selected square displays particular record(s), including their source(s).