Ditrichum cornubicum 


Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Bryophyta Bryopsida Dicranales Ditrichaceae

Scientific Name: Ditrichum cornubicum
Species Authority: Paton

Assessment Information [top]

Red List Category & Criteria: Endangered B1+2c ver 2.3
Year Published: 2000
Date Assessed: 2000-06-30
Needs updating
Assessor(s): Bryophyte Specialist Group
Reviewer(s): Hallingbäck, T., Hodgetts, N., Geissler, P. & Tan, B. (Bryophyte Red List Authority)
The known area of occupancy is less than 500 km² and the habitat of this species seems to be declining. It therefore meets the IUCN criteria for Endangered based on the small fragmented area, less than five localities, and the decline of habitat quality.

Geographic Range [top]

Range Description: Known from only one locality in Cornwall. In recent years, the population is known to have disappeared from one of the three original sites.
Countries occurrence:
United Kingdom (Great Britain)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Current Population Trend: Unknown
Additional data:

Habitat and Ecology [top]

Habitat and Ecology: The species is known from copper mine waste in a granite area. Plants grow on compacted, well-drained peaty, loamy or gravelly soil where the vegetation is sparse and open.
Systems: Terrestrial

Threats [top]

Major Threat(s): Habitat is threatened by encroachment of rank vegetation and excessive human disturbance, for example from vehicular activity.

Classifications [top]

4. Grassland -> 4.4. Grassland - Temperate
suitability: Unknown  
0. Root -> 6. Rocky areas (eg. inland cliffs, mountain peaks)
suitability: Unknown  

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
In-Place Species Management
In-Place Education
6. Human intrusions & disturbance -> 6.1. Recreational activities
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

8. Invasive & other problematic species & genes -> 8.2. Problematic native species
♦ timing: Ongoing    
→ Stresses
  • 2. Species Stresses -> 2.3. Indirect species effects -> 2.3.2. Competition

Bibliography [top]

Bryophyte Specialist Group. For more information, see the Specialist Group website

ECCB. 1995. Red Data Book of European Bryophytes. European Committee for Conservation of Bryophytes (ECCB), Trondheim.

Hallingbäck, T. and Hodgetts, N. (compilers). 2000. Mosses, Liverworts, and Hornworts. Status Survey and Conservation Action Plan for Bryophytes. IUCN, Gland, Switzerland and Cambridge, UK.

Hilton-Taylor, C. 2000. 2000 IUCN Red List of Threatened Species. IUCN, Gland, Switzerland and Cambridge, UK.

Paton, J.A. 1976. Ditrichum cornubicum, a new moss from Cornwall. Journal of Bryology 9:171–175.

Citation: Bryophyte Specialist Group. 2000. Ditrichum cornubicum. The IUCN Red List of Threatened Species 2000: e.T39163A10166474. . Downloaded on 28 November 2015.
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