Bryum
| Bryum | |
|---|---|
| |
| Bryum argenteum | |
Scientific classification
| |
| Kingdom: | Plantae |
| Division: | Bryophyta |
| Class: | Bryopsida |
| Subclass: | Bryidae |
| Order: | Bryales |
| Family: | Bryaceae |
| Genus: | Bryum Hedw. |
| Species | |
Bryumis agenusofmossesin the familyBryaceae.It was considered the largest genus of mosses, in terms of the number of species (over 1000), until it was split into three separate genera in a 2005 publication.[1]As of 2013, the classification of bothBryumand the family Bryaceae to which it belongs underwent significant changes based on DNA studies.[2]
Description
[edit]Bryumis apolyphyleticgenus that has high morphological variation. Bryum species generally have shorter laminal cells with short, thick, and rounded stems.[3]AllBryumspecies exhibit narrowed cells at the margins. Bryum species can be identified through patterns ofasexual reproduction,coloration features of the stem and leaf base, and the strength of the leaf border.[2]
History
[edit]The genus was described byJohann Hedwigin 1801, with the name being derived from the Greek word for moss.[4][3]
BotanistJohn R. Spencepublished a reclassification of the genus in 2005. The genusPtychostomumwas reinstated, while the generaLeptostomopsis,andPlagiobryoideswere created.[1]The generaGemmabryum,Imbribryum,andRosulabryumwere later published to further divideBryum.[5]
References
[edit]- ^abNew genera and combinations in Bryaceae (Bryales, Musci) for North America, J. R. Spence, Phytologia 87: 15-28 (2005)
- ^abGenusBryum,California Moss eFlora, Jepson eFlora for CA Vascular Plants, University Herbarium, University of California,[1]
- ^ab"Bryum".eFloras.Flora of North America.Retrieved26 October2019.
- ^Sp. Musc. Frond. 178, plate 42, figs. 8-12; plates 43, 44. 1801
- ^Spence, John R. (April 2007)."Nomenclatural changes in the Bryaceae (Bryopsida) for North America II"(PDF).Phytologia.89(1): 110–114.doi:10.5962/bhl.part.24163.
