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astomum moss
Scientific Name: Astomum phascoides
Family: Pottiaceae
Category: Moss
Growth: Nonvascular
Duration:
Other Names:
Astomum: A Detailed Look
The genus Astomum comprises a group of mosses with interesting taxonomic relationships and varying common names. This page provides information about several species within this genus, including Astomum ludovicianum and Astomum muehlenbergianum.
Scientific Name and Common Names
- Scientific Name: Astomum ludovicianum (Sull.) Sull.
- Common Name: astomum moss
- Scientific Name: Astomum muehlenbergianum (Sw.) Grout
- Common Name: Muehlenberg's astomum moss
Taxonomy and Nomenclature
- Kingdom: Plantae
- Division: Bryophyta
- Class: Bryopsida
- Order: Pottiales
- Family: Pottiaceae
- Genus: Astomum Hampe
Synonyms and related names include Astomum phascoides (Hook. ex Drumm.) Grout, Weissia subgenus Astomum (Hampe) Kindb., and Weissia phascopsis Zand.
Distribution and Habitat
The provided text refers to distributional maps for Astomum ludovicianum, indicating its presence in the U.S. Specific locations mentioned include Australia and the United States as well as references to collections from South Texas and Quebec-Labrador.
Morphological Characteristics and Growth Habits
Astomum mosses are described as nonvascular plants, specifically mosses, and some species are acrocarps (cushion mosses) with narrow leaves. A key characteristic of Astomum species is their immersed capsules, where the operculum (a lid-like structure in moss capsules) is not well-defined. They are described as "mouthless" due to the lacking operculum. Additionally, the text mentions that some species within this genus are cleistocarpous.
Genetic and Cytological Information
The text references cytological studies focusing on intergeneric hybrids between the moss genera Astomum and Weissia. These studies explore the genetic relationships and hybridisation patterns between these groups. Chromosome numbers or specific gene mentions are not described in the text.
Interactions with Other Organisms
The text mentions the presence of hybrids between Astomum and Weissia, indicating interspecific interactions within the moss community. There's also a reference to studies on intergeneric hybrids, highlighting the complex relationships between different moss genera.
Resources and Further Information
The text mentions several resources for further information:
- Integrated Taxonomic Information System (ITIS)
- Encyclopedia of Life
- Garden Guides
- Australian New Crops Web Site
- ResearchGate
- Annals of the Missouri Botanical Garden
- Drone-Application-Server database
Additionally, several publications are referenced, including "Moss Flora of North America" by Grout, and cytological studies by Anderson and Lemmon.