Fissidens crispulus var. robinsonii
Common names
moss
Biostatus
Native
Current conservation status
This is the first complete assessment of all known species of mosses found in the wild in Aotearoa New Zealand with a total of 560 species being assessed. The conservation status of mosses, published in the NZTCS database, replaces all previous assessments of mosses. Data supporting the 2025 NZTCS assessment of mosses has been published on the NZTCS database at https://nztcs.org.nz/reports/1155.
Source: NZTCS and licensed by DOC for reuse under the Creative Commons Attribution 4.0 International licence.
2025 | Threatened – Nationally Critical | Qualifiers: DPS, DPT
Category
Non-vascular
Structural class
Mosses
Distribution
Indigenous. New Zealand: Kermadec Islands (Raoul Island only)
Habitat
Saxicolous on andesite rock and associated saprolite within ravine systems prone to sudden flash flooding.
Substrate details
Saxicolous on andesite rock and associated saprolite
Threats
Known only from two gatherings made from Raoul island in 2009 and 2011. There are two populations, neither large. This moss seems to be genuinely scarce on Raoul Island and it will probably warrant listing as Nationally Critical when the Bryophytes are next up for threat listing. Both populations are at risk from flooding, and possibly accidental loss through track maintenance
Detailed taxonomy
Genus
Family
Endemic taxon
No
Endemic genus
No
Endemic family
No
Other information
Etymology
fissidens: From the Latin fissio ‘fission’ and dens ‘tooth, prong’ meaning split tooth and referring to shape of the lamina.
Previous conservation statuses
This is the first complete assessment of all known species of mosses found in the wild in Aotearoa New Zealand with a total of 560 species being assessed. The conservation status of mosses, published in the NZTCS database, replaces all previous assessments of mosses. Data supporting the 2025 NZTCS assessment of mosses has been published on the NZTCS database at https://nztcs.org.nz/reports/1155.
Source: NZTCS and licensed by DOC for reuse under the Creative Commons Attribution 4.0 International licence.
2014 | Data Deficient
2010 | Data Deficient | Qualifiers: OL, SO
Referencing and citations
Attribution
Fact Sheet Prepared for NZPCN by: P.J. de Lange 12 October 2011.