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.[1]

Cryptomitrium
Cryptomitrium tenerum Sporangiophore
Scientific classification
Kingdom:
Plantae
Division:
Marchantiophyta
Class:
Marchantiopsida
Order:
Marchantiales
Family:
Aytoniaceae
Genus:
Cryptomitrium

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.[1]

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.[1]

Species
  • Cryptomitrium himalayense Kashyap
  • Cryptomitrium oreades Perold
  • Cryptomitrium tenerum (Hook. ) Austin ex Underw.

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