[1][2] It was first described in 1960 by the English mycologist Peter Darbishire Orton and classified as Coprinus martinii.

[3] In 2001 phylogentic analysis restructured the Coprinus genus and it was reclassified as Coprinopsis martinii by the mycologists Scott Alan Redhead, Rytas J. Vilgalys & Jean-Marc Moncalvo.

[4] Coprinus martinii is a small inkcap mushroom which grows in wetland environments.

Starts ovoid and expands to convex and then campanulate (bell shaped).

[5][6] Grows trooping in small groups on rotting sedges and rushes belonging to the genera Carex, Scirpus and Juncus.