Ptilium crista-castrensis
{{Short description|Species of moss}}
{{Speciesbox
| image = Ptilium crista-castrensis.jpg
| image_caption = P. crista-castrensis in Finland
| genus = Ptilium (plant)
| species = crista-castrensis
| authority = (Hedw.) De Not.
}}
Ptilium crista-castrensis, the knights plume moss{{PLANTS|id=PTCR70|taxon=Ptilium crista-castrensis|accessdate=15 October 2015}} or ostrich-plume feathermoss,{{cite book|last=Edwards|first=Sean R.|date=2012|title=English Names for British Bryophytes|location=Wootton, Northampton|publisher=British Bryological Society|isbn=978-0-9561310-2-7|issn=0268-8034|series=British Bryological Society Special Volume|volume=5|edition=4}} is a moss species within the family Pylaisiaceae,{{cite journal|last1=Stech|first1=Michael|last2=Frey|first2=Wolfgang|title=A morpho-molecular classification of the mosses (Bryophyta)|journal=Nova Hedwigia|volume=86|issue=1|year=2008|pages=1–21|issn=0029-5035|doi=10.1127/0029-5035/2008/0086-0001}}{{cite web |last1=Goffinet |first1=B. |first2=W.R. |last2=Buck |title=Classification of extant moss genera |website=Classification of the Bryophyta |date=4 March 2014 |url=http://bryology.uconn.edu/classification/#HYPNALES |access-date=1 May 2020}} in the class Bryopsida, subclass Bryidae and order Hypnales.
Ecology
This species occurs on the floor of Canadian boreal forests as well as many forests of northern Europe; an example of this occurrence is within the black spruce/feathermoss climax forest, often having moderately dense canopy and featuring a forest floor of feathermosses including Hylocomium splendens, Pleurozium schreberi and Ptilium crista-castrensis.C. Michael Hogan. 2008
References
- C. Michael Hogan. 2008. [https://web.archive.org/web/20111005174426/http://globaltwitcher.auderis.se/artspec_information.asp?thingid=44751 Black Spruce: Picea mariana, GlobalTwitcher.com, ed. Nicklas Stromberg]
- ITIS Report. 1999. [https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=16299 Family: Hypnaceae]