Osteina obducta is a fungal species in the family Dacryobolaceae.

[2] Osteina obducta is characterized by fruit bodies that are sessile to stipitate, which are bone hard when dry.

It has a monomitic hyphal system, containing only generative hyphae with clamps.

The spores are hyaline and thin-walled, and are inamyloid and acyanophilic.

Osteina obducta causes a brown rot in gymnosperm wood.