# Cryptomitrium

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***Cryptomitrium*** is a genus of complex [thalloid](/source/Thallus) liverworts in the family [Aytoniaceae](/source/Aytoniaceae). The genus name means “hidden turban” in reference to the inconspicuous sheath around the immature sporangium.[1]

## Description

[Sporophyte](/source/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.[1]

Mature [sporangia](/source/Sporangia) are brown, nearly spherical with very short seta, three to seven per receptacle, each opening by a lid-like [operculum](/source/Operculum_(botany)). The sporangia mature in early spring.[1]

## Species

This genus includes the following species:[2][3]

- *[Cryptomitrium himalayense](/source/Cryptomitrium_himalayense)* [Kashyap](/source/Shiv_Ram_Kashyap)
- *[Cryptomitrium oreades](/source/Cryptomitrium_oreades)* [Perold](/source/Sarie_Magdalena_Perold)
- *[Cryptomitrium tenerum](/source/Cryptomitrium_tenerum)* ([Hook.](/source/William_Jackson_Hooker)) [Austin](/source/Coe_Finch_Austin) ex [Underw.](/source/Lucien_Marcus_Underwood)

## References

1. Schofield, W.B. (2002). *Field Guide to Liverwort Genera of Pacific North America*. San Francisco: Global Forest Society. pp. 92–93.

1. "*Cryptomitrium* Austin ex Underw.". 4000009900. Retrieved 15 April 2025.

1. Retrieved 15 April 2025.

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