Two new species of Nitella (Characeae, Charophyceae) from arid-zone claypan wetlands in Australia

Title: Two new species of Nitella (Characeae, Charophyceae) from arid-zone claypan wetlands in Australia
Creator: Casanova, Michelle; Porter, John
Date: 2013
Type: Text; Journal article
Identifier: http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/38376
Identifier: vital:4954
Identifier: ISSN:0077-1813
Abstract: Two new species of Nitella Ag. are described. The species are dioecious and grow in temporary arid-zone wetlands called 'claypans'. Both have somewhat inflated, bicelluate fertile dactyls and neither species has mucus associated with the reproductive whorls. Nitella parooensis M.T.Casanova & J.LPorter is characterised by its apparently pluricelluate sterile branchlets with acute, conical end cells, inflated bicellulate dactyls and uniquely twisted oogonia and oospores. Nitella micklei M.T.Casanova is characterised by a crisp, inflated appearance, large antheridia and distinctive oospores. The ornamentation on the oospores of both species is essentially reticulate, but for N. micklei there are 1 -2 thickwalled meshes across the fossa, and in mature oospores of N. parooensis the 3-4 meshes have scattered, acute papillae within them.
Relation: Muelleria Vol. 31, no. 1 (2013), p. 53-59
Rights: Open Access
Rights: This metadata is freely available under a CCO license
Subject: 0607 Plant Biology; 0603 Evolutionary Biology; Charophyte; Morphology; Oospore; Paroo; Pilbara
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