Timmia norvegica
Common name
Moss
Synonyms
Timmia scotica Stirt.
Family
Timmiaceae
Flora category
Non-vascular – Native
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 | Range Restricted | Qualifiers: SO
Distribution
Indigenous. New Zealand: North-West Nelson, otherwise northern hemisphere.
Detailed description
Plants 10-800 mm tall, erect, in compact or loose tufts, brown below, green or yellowish-green above. Stems unbranched or sparsely branched, red-brown 0.6-0.7 mm wide. Rhizoids arising all along stem, from leaves and costa, dark red-black c.15-35 µm wide, coarsely papillose. Leaves crisped or imbricate when dry, erecto-patent when wet, 2.5-12.0 × 0.8-1.1 mm, broadly lanceolate, apex acute to acuminate, with a well differentiated sheath, costa strong, uppermost leaves often longer than those lower on stem with less obvious sheath; leaf limb margin coarsely dentate in upper 1/3-1/2, slightly toothed, crenulate or ± entire in lower part. Dioicous. Perichaetia terminal, with stem continuing growth through a side branch arising just below Perichaetium. Perichaetial leaves long, tapering 7.5-9.0 × 1.0-1.5 mm, costa strong; margin distinct. Archegonia 5 or less per Perichaetium, 1.5-2.0 mm long; paraphyses absent or few, long and filamentous. Setae single, erect, 15-20 mm long, smooth, yellow-orange, brownish when old, twisted weakly to the right when dry. Capsules brownish, oblong-oval, horizontal to weakly pendulous, 2.5-3.0 × 1.5 mm long, non-plicate, weakly, neck scarcely evident; opercula hemispheric; annulus large and revoluble, of 3-4 rows of inflated cells c.0.5 mm wide when inflated; capsule mouth orange, with smaller cells; exostome teeth 16, yellow at base, pale yellow above, tapering from the base 0.8-1.0 × 0.2-0.3 mm, outer surface finely papillose-striate below, coarsely papillose and vertically barred above, in the upper half with a distinct row of central perforations, the inner surface with 45-55 lamellae which in the lower half of teeth are united by cross bars; endostome basal membrane yellow, 0.3-0.4 mm tall, the outer membrane cross –striolate; endostome cilia yellow, irregularly anastomosing 0.40-0.55 mm long, nodose, with 8-11 internodes, with tall papillae on the outer surface, the inner surface of the internodes with numerous short blunt appendiculations. Spores 17-20 µm diameter, brown, round or oval, finely papillose.
Fruiting
Fruits have not been observed in New Zealand populations.
Threats
Not Threatened, All known populations occur within Kahurangi National Park. Listed becaus ein New Zealand it is known from very few populations all within a small area.
Substrate
Alpine. Saxicolous on marble and limestone.