Willia calobolax
Common name
Moss
Synonyms
Barbula calobolax Müll.Hal.; Tortula pachyneura Dixon; Trichostomum imshaugii (Vitt.) R.H.Zander
Family
Pottiaceae
Flora category
Non-vascular – Native
Endemic taxon
No
Endemic genus
No
Endemic family
No
Structural class
Mosses
Current conservation status
- Conservation status of New Zealand mosses, 2014 (PDF, 583.87 kB)
The conservation status of 109 New Zealand moss taxa was assessed using the New Zealand Threat Classification System (NZTCS). Four taxa and one undescribed entity that were not included in previous assessments have been added to the list. The conservation status of only two taxa has changed in this assessment. A full list is presented, along with a statistical summary and brief notes on the changes. This list replaces all previous NZTCS lists for mosses. Authors: Jeremy R. Rolfe, Allan J. Fife, Jessica E. Beever, Patrick J. Brownsey and Rodney A. Hitchmough.
- Conservation status of New Zealand hornworts and liverworts, 2014 (PDF, 695.44 kB)
The conservation status of the New Zealand hornwort and liverwort flora is reassessed using the New Zealand Threat Classification System (NZTCS). A full list is presented, along with a statistical summary and brief notes on the most important changes. This list replaces all previous NZTCS lists for New Zealand hornworts and liverworts which previously had been part of a generic bryophyte conservation status assessment that included mosses. Authors: Peter J. de Lange, David Glenny, John Braggins, Matt Renner, Matt von Konrat, John Engel, Catherine Reeb and Jeremy Rolfe.
Source: NZTCS and licensed by DOC for reuse under the Creative Commons Attribution 4.0 International licence.
2009 | Threatened – Nationally Critical | Qualifiers: DP, RR, ?SO
Previous conservation status
2004 | Data Deficient
Distribution
Indigenous. Subantarctic. In New Zealand little known. The first record from the country came from fragments isolated from within a collection of Leptostomum inclinans R.Br.ter. made in 1904 by Leonard Cockayne.
Detailed description
Terricolous, loosely tufted moss. Leaves 2.0-2.5 mm long, suberect to spreading when dry or moist; lamina oblong, concave, widely acute or obtuse, sometimes slightly contracted in mid-lamina; margins plane and entire; nerve very stout, c.80 microns wide in central portion of lamina, narrowed at the base, excurrent as a stout, often slightly recurved mucro, red, at the apex corrugated or papillose on the dorsal surface. Upper cells 10-15 microns, irregularly isodiametrical, obscure, densely papillose; cells below 10-15 microns wide and 2-3 x 1, smooth, with rather firm walls, scarcely altered at the margin. Fruit unknown.
Fruiting
Fruits not known
Threats
Only known in New Zealand from a few collections, otherwise very poorly known which is why it has been listed as Data Deficient
Substrate
Terricolous on damp peaty ground amongst tussocks (Chionochloa Zotov).