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Pleuroziopsis ruthenica

(Weinm.) Kindb. ex Britt.

Common Tree Moss

G4Apparently Secure Found in 14 roadless areas NatureServe Explorer →
G4Apparently SecureGlobal Rank
Identity
Unique IDELEMENT_GLOBAL.2.126833
Element CodeNBMUS5P010
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryNonvascular Plant
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomPlantae
PhylumBryophyta
ClassBryopsida
OrderHypnales
FamilyPleuroziopsidaceae
GenusPleuroziopsis
Concept Reference
Anderson, L.E., H.A. Crum, and W.R. Buck. 1990. List of the mosses of North America north of Mexico. The Bryologist 93(4):448-499.
Conservation Status
Rank MethodExpertise without calculation
Review Date2017-07-20
Change Date2017-07-20
Edition Date2001-01-15
Edition AuthorsBelland René J.
Rank Reasons
Pleuroziopsis ruthenica is restricted to northeastern Asia, Alaska and British Columbia where it is known from 22 locations.
Range Extent Comments
Pleuroziopsis ruthenica is found in northwestern British Columbia, Vancouver Island, Queen Charlotte Islands, southern Alaska, Aleutian Islands, eastern Asia (Ireland 1968). Lawton (1971) cites the species from Washington (Seattle area). Schofield (pers. comm. Jan 2001) comments that the Vancouver Island, and Washington occurrences are doubtful. It is possible that the label information is erroneous since the collectors also conducted fieldwork farther north, within the range of the species. Also, the southern stations are well south of the main range of the species.
Occurrences Comments
Belland (1998) listed this species as having 6-20 occurrences in Canada (Belland's personal data files have 6 occurrences for this species for Canada). Schofield (1965) shows 22 dots for the Aleutians and East Asia on the world map of this species.
Ecology & Habitat

Habitat

The species grows on humus on ground or logs along creeks, or in other moist, shaded situations (Ireland 1968). Schofield (1976) gives " very rare on banks and hummocks in forested flood plains of coastal areas near sea-level".
Other Nations (2)
CanadaN4
ProvinceRankNative
British ColumbiaS4Yes
United StatesNNR
ProvinceRankNative
AlaskaSNRYes
WashingtonSNRYes
Plant Characteristics
Economic Value (Genus)No
Roadless Areas (14)
Alaska (14)
AreaForestAcres
Bay of PillarsTongass National Forest27,492
CamdenTongass National Forest36,793
Chilkat-West Lynn CanalTongass National Forest199,772
Douglas IslandTongass National Forest28,065
East MitkofTongass National Forest8,795
Juneau UrbanTongass National Forest101,581
Juneau-Skagway IcefieldTongass National Forest1,187,268
KartaTongass National Forest52,117
KogishTongass National Forest65,216
ManzanitaTongass National Forest8,401
SecurityTongass National Forest31,428
Taku-SnettishamTongass National Forest664,928
Upper SitukTongass National Forest16,789
Yakutat ForelandsTongass National Forest323,648
References (7)
  1. Anderson, L.E., H.A. Crum, and W.R. Buck. 1990. List of the mosses of North America north of Mexico. The Bryologist 93(4):448-499.
  2. Belland, R.J. 1998. The rare mosses of Canada: a review and first listing. Committee on the Status of Endangered Wildlife in Canada, Ottawa, Canada. 91 pp.
  3. Flora of North America Editorial Committee (FNA). 2014a. Flora of North America north of Mexico. Vol. 28. Bryophytes: Mosses, part 2. Oxford Univ. Press, New York. vii + 702 pp.
  4. Ireland, R.R. 1968. Pleuroziopsidaceae, a new family of mosses. Journal of the Hattori Botanical Laboratory 31: 59-64.
  5. Lawton, E. 1971. Moss Flora of the Pacific Northwest. The Hattori Botanical Laboratory, Nichinan, Miyazaki, Japan.
  6. Schofield, W.B. 1965. Correlations between the moss floras of Japan and British Columbia. Journal of the Hattori Botanical Laboratory 28:17-42.
  7. Schofield, W.B. 1976. Bryophytes of British Columbia III: habitat and distributional information for selected mosses. Syesis 9: 317-354.