FloraOfNewZealand-Mosses-44-Fife-2019-Plagiotheciaceae
The Plagiotheciaceae are usually considered to be monotypic, with the relatively large genus Plagiothecium widely distributed in temperate regions of both hemispheres and with some species on tropical mountains. The family is closely allied to the Hypnaceae. Species of Plagiothecium are pleurocarpous, mostly lustrous mat-forming mosses with more or less complanate shoots, inflated cortical cells, decurrent and usually asymmetric leaves with linear laminal cells, short and forked costa, and differentiated alar cells. The genus in New Zealand presents taxonomic difficulties greater than suggested by the single species treated here. Our material has historically sometimes been treated as two species, and has been considered conspecific, wholly or in part, with the northern hemisphere P. denticulatum. N.Z. material differs from that species mainly by its sexuality and leaf apex form. Although N.Z. material is variable in habit, it is interpreted here as one species, P. lamprostachys (Hampe) A.Jaeger, which has a Victorian type and is restricted to Australasia. The widely applied name P. novae-seelandiae Broth. is considered a taxonomic synonym. Our single species occurs predominantly in rock crevices and ranges from low elevations to nearly 2000 m.
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| Pole | Hodnota |
|---|---|
| Datum aktualizace dat | 5. února 2019 |
| Datum aktualizace metadat | 13. prosince 2018 |
| Vytvořeno | 13. prosince 2018 |
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