Cryptomitrium

Cryptomitrium is a genus of complex thalloid liverworts in the family Aytoniaceae. The genus name means “hidden turban” in reference to the inconspicuous sheath around the immature sporangium.

Description

Sporophyte bearing receptacles are unlobed on elongate, somewhat grooved stalks, which appear pale throughout or brownish purple near the base. The receptacle is a convex-expanded disc, thinning towards the margins.
Mature sporangia are brown, nearly spherical with very short seta, three to seven per receptacle, each opening by a lid-like operculum. The sporangia mature in early spring.

Species

This genus includes the following species:

Cryptomitrium himalayense Kashyap
Cryptomitrium oreades Perold
Cryptomitrium tenerum Austin ex Underw.