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 millimetres (0.0079 in) thick.

[1] It is found mostly in the southern hemisphere in the South West region of Western Australia[2] and Queensland in eastern Australia.

[3] It is also found in New Zealand and is known from a single population in England.

This Caliciales-related article is a stub.