Thallus: greyish-white, often with paler warted papillae that break down into granular soredia
Apothecia: very rare; black, convex and immarginate
Ascospores: simple (rarely 1-septate), 50-66 x 26-40µm

Chemistry: Perlatolic acid.

Distribution & Ecology:
Several collections from Campbell Island and Tasmania. Terricolous, over bryophytes (occasionally on rotting wood).

The sorediate counterpart of M. dissimulans.

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