Found in the United States and Asia, it grows on partially buried sticks and twigs of oak trees.

Details of the hair structure may be seen with a magnifying glass: they are up to 1 mm long or more, translucent, thick-walled, rigid and more or less sword-shaped with simple, sharply diminishing bases.

They are connected to the fruit body at the junction of internal tissue layers called the medullary and ectal excipulums.

[6] The paraphyses (sterile, upright, basally attached filaments in the hymenium, growing between asci) are thin, slightly thickened at the tip and contain many red granules.

[2] A saprobic species, M. floccosum grows scattered to clustered together, attached to wood that is typically partially buried in the earth.