Calicium victorianum

Calicium victorianum is a crustose lichen that is found growing on trees and wooden materials.

It has a greyish white almost inconspicuous thallus with a thin crust that is usually immersed and around 0.2 mm thick.

It is found mostly in the southern hemisphere in the South West region of Western Australia and Queensland in eastern Australia. It is also found in New Zealand and is known from a single population in England.