Acromastigum brachyphyllum

Common Name(s)


Current Conservation Status

2009 - Data Deficient

Conservation status of New Zealand indigenous vascular plants, 2012
The conservation status of all known New Zealand vascular plant taxa at the rank of species and below were reassessed in 2012 using the New Zealand Threat Classification System (NZTCS). This report includes a statistical summary and brief notes on changes since 2009 and replaces all previous NZTCS lists for vascular plants. Authors: Peter J. de Lange, Jeremy R. Rolfe, Paul D. Champion, Shannel P. Courtney, Peter B. Heenan, John W. Barkla, Ewen K. Cameron, David A. Norton and Rodney A. Hitchmough. File size: 792KB

Previous Conservation Status

2004 - Threatened - Nationally Critical


Acromastigum brachyphyllum A.Evans



Flora Category

Non Vascular - Native

NVS Species 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.

Structural Class





Indigenous. South (Westland) and Stewart Islands (Tin Range).


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.


Not seen


This species is seriously threatened by coal mining at its main stronghold


Fact Sheet Prepared for NZPCN by P.J. de Lange September 2007.

This page last updated on 22 Aug 2013