Home/Species/ Two-horned Pincerwort

Cephalozia bicuspidata

(L.) Dum.

Two-horned Pincerwort

G5Secure Found in 7 roadless areas NatureServe Explorer →

G5SecureGlobal Rank

Identity

Unique IDELEMENT_GLOBAL.2.1029391

Element CodeNBHEP0P0C0

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryNonvascular Plant

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

KingdomPlantae

PhylumHepatophyta

ClassJungermanniopsida

OrderJungermanniales

FamilyCephaloziaceae

GenusCephalozia

Other Common Names

Céphalozie cornue (FR)

Concept Reference

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.

Taxonomic Comments

Stotler and Crandall-Stotler (2017) here narrow the concept of Cephalozia bicuspidata by elevating C. bicuspidata ssp. otaruensis (= C. hamatiloba) and C. bicuspidata ssp. ambigua (= C. ambigua) to full species level and not recognizing C. bicuspidata ssp. bicuspidata and C. bicuspidata ssp. lammersiana as distinct infraspecies.

Conservation Status

Rank MethodExpertise without calculation

Review Date2018-03-25

Change Date2018-03-25

Range Extent Comments

This species is transcontinental in the high Arctic to the taiga, into the deciduous forest of North America from Alaska to Greenland south to Georgia and west to Kansas and Colorado to California. It is also in high elevations from Mexico to Colombia, and is very common in northern Europe to North Africa and also in Asia. Schuster (1974: 715) discounted the reports from Florida (Stotler and Crandall-Stotler, 2017).

Ecology & Habitat

Other Nations (2)

CanadaN5

Province	Rank	Native
Quebec	S5	Yes
British Columbia	SNR	Yes
Prince Edward Island	SU	Yes
Island of Newfoundland	S4	Yes
Ontario	S4	Yes
Saskatchewan	SU	Yes
Nunavut	SU	Yes
Labrador	S4	Yes
New Brunswick	S5	Yes
Yukon Territory	S4	Yes
Alberta	SU	Yes
Nova Scotia	S5	Yes
Northwest Territories	SU	Yes

United StatesNNR

Province	Rank	Native
Pennsylvania	S3	Yes
Wisconsin	S4	Yes
Tennessee	S5	Yes
Delaware	S4	Yes
Wyoming	SNR	Yes
Minnesota	SNR	Yes
Montana	SNR	Yes
Virginia	SNR	Yes
Michigan	SNR	Yes
Georgia	SNR	Yes
Indiana	SNR	Yes
Vermont	S4	Yes

Plant Characteristics

Economic Value (Genus)No

Roadless Areas (7)

Alaska (3)

Area	Forest	Acres
North Kupreanof	Tongass National Forest	114,660
South Kupreanof	Tongass National Forest	216,816
South Revilla	Tongass National Forest	52,105

Oregon (3)

Area	Forest	Acres
Bull Of The Woods	Willamette National Forest	53
Elkhorn	Willamette National Forest	9,380
Opal Creek	Willamette National Forest	5,417

Washington (1)

Area	Forest	Acres
South Quinault	Olympic National Forest	11,081

References (1)

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.