Plagiopus oederiana
Common name
Moss, Oeder’s Apple-moss
Synonyms
Bartramia oederiana Sw.
Family
Bartramiaceae
Flora category
Non-vascular – Native
Endemic taxon
No
Endemic genus
No
Endemic family
No
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
2009 | Threatened – Nationally Critical | Qualifiers: OL, ?SO
Previous conservation status
2004 | Threatened – Nationally Critical
Distribution
Indigenous. New Zealand: South Island (North-West Nelson, in the Owen Range (Kahurangi National Park)). Also Europe, the Caucasus, Asia, Japan China, Greenland, Hawaii, and eastern North America. In the Pacific Northwestern North America it is known from Alaska, Canadian Arctic, Washington, Oregon, and Colorado
Habitat
Saxicolous. Found on shaded or wet calcareous rocks in montane, subalpine and alpine areas especially common on cliffs and on rocks in crevices and vertical faces.
Features
Plants in dense, dull green to yellowish-brown tufts up to 10 cm tall; stems ± covered with brown rhizoids, triangular in cross-section; leaves linear-lanceolate, acute, keeled, 2–5 mm long, erect to spreading when moist, somewhat crisped and contorted when dry; margins unistratose, recurved, coarsely serrate above, smooth below; costa single, percurrent, toothed near the apex on dorsal side; upper median cells quadrate to rectangular, cuticle irregularly roughened in longitudinal lines or ridges appearing as minutely plurepapillose; basal cells longer and smooth. Synoicous; paraphyses numerous; seta straight, 7–18 mm long; capsules ± globose, brown to reddish-brown, zygomorphic, suberect to inclined, strongly ribbed when dry; peristome teeth double, endostome yellow, exostome dark brown; spores coarsely papillose, globose to ellipsoidal, 15–27µm
Threats
Known from very few sites and even fewer plants. Threatened mainly by the small population size and area of occupancy than by any other more direct human-induced threat(s).
Substrate
Saxicolous on damp marble and rendzine soils in the alpine zone.
References
Ireland, R. 1982: Moss Flora of the Maritime Provinces. National Museum of Natural Sciences. National Museum of Natural Sciences. Publications in Botany, No. 13. Ottawa. Canada. 738 pp.
Fact Sheet Prepared for NZPCN by: P.J. de Lange (8 November 2006). Description adapted from (Ireland 1982).