Ptilium crista-castrensis

Ptilium crista-castrensis, the knights plume moss^[1] or ostrich-plume feathermoss,^[2] is a moss species within the family Pylaisiaceae,^[3][4] in the class Bryopsida, subclass Bryidae and order Hypnales.

Ptilium crista-castrensis
P. crista-castrensis in Finland
Scientific classification
Kingdom:	Plantae
Division:	Bryophyta
Class:	Bryopsida
Subclass:	Bryidae
Order:	Hypnales
Family:	Pylaisiaceae
Genus:	Ptilium
Species:	P. crista-castrensis
Binomial name
Ptilium crista-castrensis (Hedw.) De Not.

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.^[5]

References

• C. Michael Hogan. 2008. Black Spruce: Picea mariana, GlobalTwitcher.com, ed. Nicklas Stromberg
• ITIS Report. 1999. Family: Hypnaceae