Acromastigum brachyphyllum
Common names
Liverwort
Biostatus
Native
Current conservation status
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: P.J. de Lange, D. Glenny, K. Frogley, M.A.M. Renner, M. von Konrat, J.J. Engel, C. Reeb and J.R. Rolfe.
Source: NZTCS and licensed by DOC for reuse under the Creative Commons Attribution 4.0 International licence.
2009 | Data Deficient
Category
Non-vascular
Structural class
Liverworts
Detailed description
Plants consisting of loose stems, shiny, golden to olive brown. Stems 60 mm, blackish, dichotomously branched from acute angles. Leaves scarcely contiguous to a little imbricate, obliquely spreading, small, 0·35–0·45 x 0·25–0·30 mm, bilobed, lobes triangular sometimes much reduced, apex usually decurved; ventral lobe the larger, scarcely 0.1 mm. long, sinus small acute; ventral margin straight or a little concave, mostly at an angle of 45 degrees from the axis, a little incurved. Dorsal margin strongly rounded at the base. Vitta of cells not clearly defined, and trigones indistinct, but the cells in the ventral area are larger than those in dorsal, ca. 25 micometre, decreasing to 10 micrometre, at the dorsal margin and the upper portion of the leaf. Stipules 0·2 mm. wide at the base, slightly auricled and mostly extending across the width of the stem, narrower at the apex, and only 0·1 mm tall on stems examined, obtusely trifid to the middle, segments broadly obtuse. Inflorescences unknown.
Distribution
Indigenous. South (Westland) and Stewart Islands (Tin Range).
Substrate details
Montane to alpine. Terricolous and corticolous on water saturated peat, on rotting logs and the lower trunks of trees and shrubs.
Threats
This species is seriously threatened by coal mining at its main stronghold
Detailed taxonomy
Genus
Family
Synonyms
None
Endemic genus
No
Endemic family
No
Ecology
Fruiting
Not seen
Other information
NVS code
The National Vegetation Survey (NVS) Databank is a physical archive and electronic databank containing records of over 94,000 vegetation survey plots - including data from over 19,000 permanent plots. NVS maintains a standard set of species code abbreviations that correspond to standard scientific plant names from the Ngä Tipu o Aotearoa - New Zealand Plants database.
ACRBRA
Previous conservation status
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: P.J. de Lange, D. Glenny, K. Frogley, M.A.M. Renner, M. von Konrat, J.J. Engel, C. Reeb and J.R. Rolfe.
Source: NZTCS and licensed by DOC for reuse under the Creative Commons Attribution 4.0 International licence.
2004 | Threatened – Nationally Critical
Referencing and citations
Attribution
Fact Sheet Prepared for NZPCN by P.J. de Lange September 2007.
NZPCN Fact Sheet citation
Please cite as: de Lange, P.J. (Year at time of access): Acromastigum brachyphyllum Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. https://www.nzpcn.org.nz/flora/species/acromastigum-brachyphyllum/ (Date website was queried)