Xanthoria parietina
Family: Teloschistaceae (Lecanoromycetes)
Genus: Xanthoria
Species: X. parietina
Common Name: Common Orange/Yellow Lichen
Location: NT378632
Habitat: This foliose lichen is very common and usually grows on stone, but can also be found on dead/living trees. The species reproduces via apothecia and has small pale rhizoids, when KOH stain tested, the thallus turns bright scarlet. Don’t get confused between this and Xanthoria polycarpa, which is smaller. The colour can vary depending on sunlight and pollution levels - A grey shade indicates stress.
Determiner: Ewan Cole
Authority: (L.) Th. Fr

#631 - Teloschistaceae family - Golden Lichens

A family of usually bright yellow, orange, or red lichenised fungi, often with even brighter apothecia. This one, for example, that was growing profusion on bare branches in a Mandurah golf course, seems similar to Teloschistes chrysophthalmus, the Gold Eye Lichen.

Other lichens in the family include the Orange Wall Lichen, or Sunburst Lichens.