Microglossum

Microglossum is a genus of fungi in the family Leotiaceae.

Ascocarps (fruit bodies) occur in soil and resemble earth tongues, but are microscopically distinct.

Microglossum atropurpureum, a species typical of waxcap grassland in Europe, is of global conservation concern and is listed as "vulnerable" on the IUCN Red List of Threatened Species.

[1] Microglossum in Index Fungorum