Isobryales are an
order
Order, ORDER or Orders may refer to:
* Categorization, the process in which ideas and objects are recognized, differentiated, and understood
* Heterarchy, a system of organization wherein the elements have the potential to be ranked a number of d ...
of
moss
Mosses are small, non-vascular flowerless plants in the taxonomic division Bryophyta (, ) '' sensu stricto''. Bryophyta (''sensu lato'', Schimp. 1879) may also refer to the parent group bryophytes, which comprise liverworts, mosses, and hor ...
es.
Its taxonomic status is not clear. The
Integrated Taxonomic Information System
The Integrated Taxonomic Information System (ITIS) is an American partnership of federal agencies designed to provide consistent and reliable information on the taxonomy of biological species. ITIS was originally formed in 1996 as an interagenc ...
and
National Center for Biotechnology Information
The National Center for Biotechnology Information (NCBI) is part of the United States National Library of Medicine (NLM), a branch of the National Institutes of Health (NIH). It is approved and funded by the government of the United States. The ...
databases consider it as a synonym of
Bryidae
Bryidae is an important subclass of Bryopsida. It is common throughout the whole world. Members have a double peristome with alternating tooth segments.
Classification
The classification of the Bryidae.Buck, William R. & Bernard Goffinet. 2000. ...
and
Hypnales
Hypnales is the botanical name of an order of Bryophyta or leafy mosses. This group is sometimes called feather mosses, referring to their freely branched stems. The order includes more than 40 families and more than 4,000 species, making them ...
, respectively.
The
Global Biodiversity Information Facility
The Global Biodiversity Information Facility (GBIF) is an international organisation that focuses on making scientific data on biodiversity available via the Internet using web services. The data are provided by many institutions from around the ...
considers it valid in its own right.
Genera
As accepted by GBIF;
*
Cyrtopodaceae (8)
*
Fontinalaceae (94)
*
Glyphomitriaceae (1)
*
Hydropogonaceae (4)
*
Lepyrodontaceae(13)
*
Prionodontaceae (21)
*
Ptychomniaceae (44)
*
Regmatodontaceae (29)
*
Rhacocarpaceae (1)
*
Rutenbergiaceae (11)
*
Trachypodaceae (80)
*
Wardiaceae (2)
Figures in brackets are approx. how many species per genus.
Description
The order includes plants that generally grow from a creeping primary stem with reduced leaves, and plants that have spreading to ascending secondary stems which may be pinnately branched. Paraphyllia (tiny branched or stipuliform organs between the leaves) and pseudoparaphyllia are sometimes present on the stems. The leaves may have single or double and sometimes short
costae (ribs). The cells may be short or elongate and smooth or papillose, with those at basal angles sometimes differentiated. The
sporophyte
A sporophyte () is the diploid multicellular stage in the life cycle of a plant or alga which produces asexual spores. This stage alternates with a multicellular haploid gametophyte phase.
Life cycle
The sporophyte develops from the zygote pr ...
s are lateral, usually with elongate
setae
In biology, setae (singular seta ; from the Latin word for "bristle") are any of a number of different bristle- or hair-like structures on living organisms.
Animal setae
Protostomes
Annelid setae are stiff bristles present on the body. Th ...
and capsules. The double peristome, sometimes reduced, consists of 16 teeth which are papillose on the outer surface, or less often cross-striate at the base, and an endostome with narrow segments and a low basal membrane or none at all. The calyptrae (the protective cap or hood covering the spore case) are cucullate (hooded) and naked, or mitrate and hairy.
References
Moss orders
Bryidae
{{Bryidae-stub