- 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
- Copyright 2013 The Royal Botanic Gardens Melbourne
- 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
- Full Text
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