Lichens : Teloschistales : TeloschistaceaeLichens

Xanthomendoza ulophyllodes Räsänen [42]

Description: This small non-sorediate foliose species forms crisp yellow-orange rosettes of horizontal lobes with small propagules (blastidia) along the margins. Colonies often merge through expansion. Discs are rare. On humid, well-illuminated, canopy twigs and branches; also spreading to stone. K+ orange. In Ireland, it occurs in the south and south-east.

Key Identification Features:

  • Non-sorediate and leafy small yellow-orange rosettes; flattened lobes (K+ orange) with small propagules along the edges
  • Humid sites favoured; Candelaria concolor is K-.

Original text submitted by Vince J. Giavarini

Distribution Map from NBN: Xanthomendoza ulophyllodes at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Xanthomendoza ulophyllodes at iNaturalist World Species Observations database.

 Giavarini, Vince J., Simms, Michael J., & Davey, Simon, 2026. Xanthomendoza ulophyllodes. Räsänen [42]. [In] Lichen Ireland.
https://www.habitas.org.uk/lichenireland/species.php?item=20583. Accessed on 2026-11-12.