Species

Crossidium geheebii

Common Name(s)

Moss

Current Conservation Status

2009 - Non Resident Native - Vagrant

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

Qualifiers

2009 - DP, OL, SO

Authority

Crossidium geheebii (Broth.) Broth.

Family

Pottiaceae

Flora Category

Non Vascular - Native

Synonyms

None

Distribution

Indigenous. Australia and New Zealand. Hawkes Bay.

Features

Diminutive, light yellow-brown, colonial moss of limestone rock. Stems 2 mm tall or more, stout, comose. leaves 1.0-1.5 mm long, imbricated and incurved when dry, suberect to spreading when moist; lamina broadly ovate or ovate-oblong, obtuse, concave, margins deeply reflexed, entire. nerve wide and distinct, excurrent in a long hyaline, smooth arista, the upper ventral portion of nerve surface densely covered with long green filaments. Cells above c.15 microns, subquadrate, pellucid, smooth, rather incrassate; those below longer, rectangular, with thin walls. Seta 5-10 mm long. Capsule 1 mm long, erect, narrowly elliptic. Peristome with 32 filiform teeth on a low basal cylinder, spirally twisted to the left. Operculum conico-rostrate, slightly curved, about 1/2 capsule length. Calyptra long, hooded.

Fruiting

Fruits may be found throughout the year

Threats

Very vulnerable to competition from weeds and mining/quarrying for lime and limestone rock for building.

Endemic Taxon

No

Endemic Genus

No

Endemic Family

No


Fact Sheet Prepared for NZPCN by: P.J. de Lange 31 August 2007.

This page last updated on 13 Oct 2011