Home/Species/ Common Fold-leaf Liverwort

Diplophyllum albicans

(L.) Dum.

Common Fold-leaf Liverwort

G5Secure Found in 5 roadless areas NatureServe Explorer →

G5SecureGlobal Rank

LowThreat Impact

Identity

Unique IDELEMENT_GLOBAL.2.127405

Element CodeNBHEP15010

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryNonvascular Plant

Endemicoccurs (regularly, as a native taxon) in multiple nations

KingdomPlantae

PhylumHepatophyta

ClassJungermanniopsida

OrderJungermanniales

FamilyScapaniaceae

GenusDiplophyllum

Concept Reference

Stotler, R. and B. Crandall-Stotler. 1977. A checklist of the liverworts and hornworts of North America. The Bryologist 80(3): 405-428.

Conservation Status

Review Date2002-11-21

Change Date1999-07-15

Edition Date2002-11-21

Edition AuthorsChristy, John A.

Threat ImpactLow

Range Extent>2,500,000 square km (greater than 1,000,000 square miles)

Number of Occurrences> 300

Rank Reasons

Diplophyllum albicans has a circumboreal distribution. Estimated 1500 occurrences worldwide. Estimated 300 occurrences worldwide with good viability. Estimated 100,000-1,000,000 individuals worldwide. Estimated range greater than 1,000,000 square miles worldwide. Estimated area of occupancy 1000 acres worldwide. Long-term and short-term trends relatively stable. Unthreatened as far as is known. Estimated at least 75 protected occurrences worldwide. Not intrinsically vulnerable. Narrow to generalist environmental specificity.

Range Extent Comments

Estimated range greater than 1,000,000 square miles worldwide. Circumboreal distribution, mostly maritime but some populations inland. Canada (British Columbia, Yukon, Qubec, Maritime provinces), northern United States (Alaska, Washington, Oregon, Maine, probably others), Greenland, UK, Scandinavia, Europe, Russian far east, China, Japan, Korea, Taiwan.

Occurrences Comments

Estimated 1500 occurrences worldwide. The University of Alberta database has the most complete listing with 720 records worldwide. The ISMS database contains 90 records, representing about 92 sites.

Threat Impact Comments

Unthreatened as far as is known. Local threats from logging. In addition to forest habitat, this species also grows on road cuts and is not dependent on old growth forests. This species is likely to persist as long as there are shady, cool, moist habitats.

Ecology & Habitat

Other Nations (2)

United StatesNNR

Province	Rank	Native
Alaska	SNR	Yes
Washington	SNR	Yes
Maine	SNR	Yes
Oregon	SNR	Yes
Indiana	SNR	Yes

CanadaN5

Province	Rank	Native
Alberta	SU	Yes
Yukon Territory	SU	Yes
New Brunswick	SU	Yes
British Columbia	S5	Yes
Island of Newfoundland	S4	Yes
Nunavut	SU	Yes
Quebec	S2	Yes
Labrador	S2	Yes
Nova Scotia	S4	Yes

Plant Characteristics

Economic Value (Genus)No

Roadless Areas (5)

Alaska (4)

Area	Forest	Acres
North Revilla	Tongass National Forest	215,430
Revilla	Tongass National Forest	29,298
Rhine	Tongass National Forest	23,010
Taku-Snettisham	Tongass National Forest	664,928

Washington (1)

Area	Forest	Acres
Upper Skokomish	Olympic National Forest	9,311

References (7)

Christy, J.A. and D.H. Wagner. 1996. Guide for the identification of rare, threatened or sensitive bryophytes in the range of the northern spotted owl, western Washington, western Oregon, and northwestern California. USDI Bureau of Land Management. 200 pp.
Hong, W.S. 1980. A study of the distribution of Diplophyllum in western North America. The Bryologist 83(4):497-504.
Schuster, R.M. 1974. The Hepaticae and Anthocerotae of North America East of the Hundredth Meridian. Volume III. Columbia University, New York.
Schuster, R.M. 1988. The Hepaticae of South Greenland. J. Cramer. Berlin and Stuttgart, Germany. 255 pp.
Stotler, R. and B. Crandall-Stotler. 1977. A checklist of the liverworts and hornworts of North America. The Bryologist 80(3): 405-428.
Stotler, R.E. and B. Crandall-Stotler. 2017. A synopsis of the liverwort flora of North America north of Mexico. Ann. Missouri Bot. Gard. 102: 574-709.
USDA Forest Service, USDI Bureau of Land Management, USDI Fish and Wildlife Service. 2002. Interagency Species Management System [ISMS] database. Portland, Oregon.