Biology:Cryptomitrium

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Short description: Genus of plants

Cryptomitrium
Cryptomitrium tenerum Sporangiophore.jpg
Cryptomitrium tenerum sporangiophore
Scientific classification e
Kingdom: Plantae
Division: Marchantiophyta
Class: Marchantiopsida
Order: Marchantiales
Family: Aytoniaceae
Genus: Cryptomitrium
Austin ex Underw.

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]

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. 1.0 1.1 1.2 Schofield, W.B. (2002). Field Guide to Liverwort Genera of Pacific North America. San Francisco: Global Forest Society. pp. 92–93. 

Wikidata ☰ Q17295670 entry