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atrichum moss
Scientific Name: Atrichum altecristatum
Family: Polytrichaceae
Category: Moss
Growth: Nonvascular
Duration:
Other Names:
Atrichum Moss: A Comprehensive Overview
Atrichum, commonly known as Star Moss or Smoothcap Moss, is a genus of mosses that adds a touch of verdant beauty to various environments. This page explores different species within the Atrichum genus, their characteristics, habitats, and other interesting aspects.
Scientific Classification and Nomenclature
- Scientific Name: Atrichum P. Beauv.
- Common Names: Star Moss, Smoothcap Moss
- Family: Polytrichaceae
- Synonyms: Several species have synonyms, including:
- Atrichum angustatum (Brid.) Bruch & Schimp.
- Atrichum undulatum (Hedw.) P. Beauv. (also referred to as Catherine's moss)
- Atrichum selwynii Aust. (Synonyms: Atrichum rosulatum)
Distribution and Habitat
Atrichum mosses are found in diverse regions:
- They are common on soil banks and areas with exposed mineral soil.
- Species like Atrichum altecristatum can be found in woodlands, such as in Delaware County, Ohio.
- Atrichum undulatum is widespread across Europe.
- Specific species like Atrichum selwynii have been mapped in surveyed locations.
- Some species also exist in regions such as Antarctica, Austria and India.
Morphological Characteristics
- Atrichum angustatum is described as a dull yellowish-green moss, sometimes with a red tinge.
- Lesser smoothcap forms patches of single, upright shoots with narrow leaves.
- The leaves of some Atrichum species have toothed edges and may curl when dry.
- Leaves of some species can be up to 1cm long, narrow and pointed.
- The capsule lid (operculum) has a very long beak.
Ecological Role
- Atrichum mosses, with their compact growth patterns, help hold soil in place.
- They are tolerant of a variety of pH levels.
Genetic and Cytological Information
- Atrichum angustatum is a dioicous moss, meaning it exhibits strong segregation of sexes in populations.
Interactions with Other Organisms
- Atrichum altercristatum forms lush, dark green cushions on the ground at the base of large trees.
Resources and Further Information
- USDA PLANTS Database: Provides references and maps for various Atrichum species, such as Atrichum papillosum.
- GBIF (Global Biodiversity Information Facility): Offers a view on species like Atrichum tenellum.
- BBS Field Guide: Provides information on Atrichum undulatum.
- Wikimedia Commons: Hosts images of Atrichum species, such as Atrichum angustatum.