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A new diatom (Bacillariophyceae) genus with two new species from New Mexico, USA

Published online by Cambridge University Press:  09 April 2002

S. A. SPAULDING ,
J. P. KOCIOLEK  and
D. R. DAVIS
S. A. SPAULDING
Affiliation:
Diatom Collection, California Academy of Sciences, Golden Gate Park, San Francisco, CA 94118, USA
J. P. KOCIOLEK
Affiliation:
Diatom Collection, California Academy of Sciences, Golden Gate Park, San Francisco, CA 94118, USA
D. R. DAVIS
Affiliation:
Surface Water Quality Bureau, New Mexico Environment Department, Santa Fe, NM 87502, USA
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Abstract

A new diatom (Bacillariophyceae) genus and two new species are described from the arid region of the North American southwest. The new genus, Playaensis, and new species, P. circumfimbria and P. furtiva, are distinguished by frustule morphology and autecology. Playaensis possesses unique, narrowly lunate longitudinal ribs bordering the raphe and spathulate spines, but their evolutionary relationship to known genera is unclear. In Payton Lake, New Mexico, P. circumfimbria and P. furtiva are rare in the diatom community, and their geographic and geological extent are not known, but they may be restricted to alkaline, slightly saline lakes of the region.

Keywords

BacillariophyceaeNaviculalesphylogenyPlayaensis circumfibriaPlayaensis furtivaplaya lakes
Type
Research Article
Information
European Journal of Phycology , Volume 37 , Issue 1 , February 2002 , pp. 135 - 143
Copyright
© 2002 British Phycological Society

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