Polytrichum is a genus of mosses — commonly called haircap moss or hair moss — which contains approximately 70 species that have a cosmopolitan distribution.
The genus Polytrichum has a number of closely related sporophytic characters. The scientific name is derived from the Ancient Greek words polys, meaning "many", and thrix, meaning "hair". This name was used in ancient times to refer to plants with fine, hairlike parts, including mosses, but this application specifically refers to the hairy calyptras found on young sporophytes. A similar naming related to hair appears in Old Norse, haddr silfjar, "hair of Sif", goddess from Norse Mythology, wife of the god Thor. There are two major sections of Polytrichum species. The first — section Polytrichum — has narrow, toothed, and relatively erect leaf margins. The other — section Juniperifolia — has broad, entire, and sharply inflexed leaf margins that enclose the lamellae on the upper leaf surface.[1][2]
Anatomy of Polytrichum formosum plant.
^Smith Merrill, Gary L. (2007), "Polytrichum", Flora of North America, vol. 27, Oxford University Press
^Crum, Howard Alvin; Anderson, Lewis Edward (1981), Mosses of Eastern North America, Columbia University Press, pp. 1281–1282, ISBN 0-231-04516-6
back into Polytrichum. Polytrichum appalachianum Polytrichum alpinum Polytrichum commune Polytrichum formosum Polytrichum hyperboreum Polytrichum juniperinum[1]...
Polytrichum commune (also known as common haircap, great golden maidenhair, great goldilocks, common haircap moss, or common hair moss) is a species of...
Polytrichum juniperinum, commonly known as juniper haircap or juniper polytrichum moss, is an evergreen and perennial species of moss that is widely distributed...
Polytrichum strictum, commonly known as bog haircap moss or strict haircap, is an evergreen and perennial species of moss native to Sphagnum bogs and...
Atlantic islands (i.e. Iceland). This species was previously called Polytrichum formosum but has been reclassified as Polytrichastrum formosum due to...
Polytrichum piliferum, the bristly haircap, is an evergreen perennial species of moss in the family Polytrichaceae. The bristly haircap moss is small-sized...
Polytrichum hyperboreum (commonly referred to as Arctic haircap moss) is a species of moss belonging to the genus Polytrichum, commonly found throughout...
Polytrichum ohioense is a species of Polytrichaceae, commonly referred to as Ohio polytrichum moss or Ohio hair-cap moss. It is found on soil and rocks...
water. Some species (for example Mnium hornum or several species of Polytrichum) keep their antheridia in so called 'splash cups', bowl-like structures...
Polytrichum longisetum is a species of Polytrichaceae. It is found in cooler areas of both the Southern and Northern hemispheres. "Field key to the identification...
leaves surrounding the antheridia, also called a splash-cup, e.g. in Polytrichum juniperinum. perigynium A sac from a modified tubular bract, or when...
which functions to protect the developing sporangium. Some species of Polytrichum also have biseriate paraphyses in its perigonium (composed of an antheridium...
Paolillo, DJ Jr. (1967). "On the structure of the axoneme in flagella of Polytrichum juniperinum". Transactions of the American Microscopical Society. 86...
North America, particularly in summer and autumn. It is associated with Polytrichum and other mosses found in the southeastern United States. It is edible...
Myrtus communis star jelly, Nostoc commune; great golden maidenhair, Polytrichum commune communis – commune compressus L compressus slender, pressed together...
Avenella flexuosa, Calamagrostis arundinacea, Carex globularis, and mosses Polytrichum commune and Sphagnum girgensohnii. Prominent vegetation of various birch...
European species appears in autumn as bright yellowish-orange discs among Polytrichum and related mosses. This cup fungus has a shallow, somewhat uneven cup...
referred to as Sifjar haddr; Sif's hair) with the herb name haddr Sifjar (Polytrichum aureum)[verification needed]. Grimm says that "expositors see in this...
faunistique et floristique. The Quarry contains the only known population of Polytrichum pallidisetum, a type of Hair cap moss, in Lower Normandy and the rare...
Sweden. Fruit bodies of the holotype collection were found growing among Polytrichum and in coarse humus and leaves under birch (Betula) and willow (Salix)...
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