Pyrrhobryum paramattense
Common name
moss
Synonyms
Mnium paramattense Müll.Hal.
Family
Rhizogoniaceae
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: Kermadec Islands (Raoul Island), North Island (Northland, Waipoua), Chatham Islands (Chatham Island (Rēkohu, Wharekauri). Also Australia (Queensland, New South Wales, Victoria and Tasmania), Lord Howe Island, Norfolk Island.
Detailed description
Acrocarpous, dioicous, yellow-green to dark green, 50–100 mm tall. Stems dark reddish brown, simple, sparingly branched; lower stems bare, immature stems with distant scale leaves. Leaves sparse, crisped when dry, spreading when moist, lanceolate to linear-lanceolate, up to 7.0 × 0.4 mm, acuminate; margin plane, denticulate in upper-half with clear sharp twinned teeth, bordered by 2–3 rows of cells, bistratose below, multistratose above; costa broad, prominent, brownish, percurrent with sharp twinned teeth above, 150 µm wide at base; costal cells quadrate, rounded or slightly rectangular (14 × 8 µm); marginal cells ± quadrate, 8 µm. Rhizoides near bases, red to brownish, weakly papillose to 0.8 mm long, to 25 µm wide; cells to 100 µm long, indistinct. Perigonia c. 6, bud-like, clustered at base of stems. Perigonial leaves lanceolate to oblong-lanceolate, up to 1.4 × 0.6 mm, shouldered; base straight, entire; apex sharply acuminate, serrate: nerve reddish-brown, prominent, to 60 µm wide at base; costal cells narrowly rectangular, 30–80 × 4–9 µm. Laminal apical cells ± thick-walled, very variable in shape and size, linear to irregularly rectangular to 30 x 5 µm; medial cells thin-walled, rectangular to hexagonal, to 40 × 10 µm; marginal; cells longer, rectangular to 70 × 12 µm, basal cells irregularly rectangular to 80 × 12 µm. Antheridia up to 12 per perigonium, to 480 × 120 µm; stalk to 40 µm long; paraphyses clear, ± same length as antheridia, to 20 µm wide; cells rectangular, to 120 µm long. Perichaetia numerous, basal or on short lateral basal branches. Perichaetial leaves broadly lanceolate to 4.7 × 0.5 mm, gradually tapering to long, serrate subulae; upper cells thick-walled, quadrate, to 10 µm; medial cells thick-walled, rectangular, to 18–20 × 5 µm; basal cells thin-walled, rectangular, to 30 × 4 µm, broader absent. Archegonia c. 30 per perichaetium, 560 × 40 µm; paraphyses clear, to 600 × 20 µm; cells to 60 µm long. Calyptra c. 3 mm long, smooth, brown. Seta reddish yellow, 10–50 mm long, erect to curved. Capsule dark red, to 3 mm long, inclined, asymmetrical, clavate-curved, smooth; annulus present. Operculum short, obliquely-rostrate; 600-700 µm long, striate below, finely papillose above; endostome segments fragile, as long as teeth, weakly papillose; basal membranes high; cilia shorter, 1–2. Spores 12–18 µm, finely papillose to smooth.
Fruiting
Fruits have been found but there is insufficient information to provide an exact fruiting time.
Threats
Not Threatened. Listed only because it is known from very few sites within a narrow geographic range. All known sites are on protected land.
Substrate
Terricolous, saxicolous and corticolous on moist rock, soil, tree-fern trunks and on rotting logs.
Attribution
Fact Sheet Prepared for NZPCN by: P.J. de Lange (23 November 2011). Description adapted from Streimann (2002)
References and further reading
Streimann H. 2002. The mosses of Norfolk Island. Flora of Australia Supplementary Series 16. Australian Biological Resources Study, Canberra, AUS. 178 p.
NZPCN Fact Sheet citation
Please cite as: de Lange, P.J. (Year at time of access): Pyrrhobryum paramattense Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. https://www.nzpcn.org.nz/flora/species/pyrrhobryum-paramattense/ (Date website was queried)