THE CURRENT STATUS OF SOME VERY SMALL FRESHWATER DIATOMS OF THE GENERASTEPHANODISCUSANDCYCLOSTEPHANOS
- 1 November 1990
- journal article
- research article
- Published by Taylor & Francis in Diatom Research
- Vol. 5 (2) , 273-287
- https://doi.org/10.1080/0269249x.1990.9705119
Abstract
The morphology of some very small Stephanodiscus and Cyclostephanos species from Canada, USA and Europe has been studied by light and electron microscopy. The possible influence of the environment on the variation of those characters often used in the diagnosis of species is discussed and an attempt is made to improve understanding of the features used to characterize such species as Cyclostephanos tholiformis Stoermer, Håkansson & Theriot, C. delicatus (Genkal) comb. nov. and S. cf. minutulus (Kütz.) Cieve & Mölier. Two new species are described: Stephanodiscus binatus Håkansson & Kling sp. nov. and S. nipigonensis Kling & Håkansson sp. nov. Similarities and differences to original material are further shown and discussed.Keywords
This publication has 13 references indexed in Scilit:
- THE PROBLEM OF DISTINGUISHING THE NEWLY DESCRIBED DIATOM GENUSPSEUDOSTEPHANODISCUSDiatom Research, 1990
- A LIGHT AND ELECTRON MICROSCOPE STUDY OF PREVIOUSLY DESCRIBED AND NEWSTEPHANODISCUSSPECIES (BACILLARIOPHYCEAE) FROM CENTRAL AND NORTHERN CANADIAN LAKES, WITH ECOLOGICAL NOTES ON THE SPECIESDiatom Research, 1989
- Morphometric analysis of Stephanodiscus alpinus (Bacillariophyceae) and its morphology as an indicator of lake trophic statusPhycologia, 1988
- A LIGHT AND ELECTRON MICROSCOPE STUDY OFCYCLOTELLASPECIES (BACILLARIOPHYCEAE) FROM CENTRAL AND NORTHERN CANADIAN LAKESDiatom Research, 1988
- Cyclostephanosspecies newly reported from North America:C. tholiformissp. nov. andC. costatilimbuscomb. nov.British Phycological Journal, 1987
- TAXONOMIC INTERPRETATION OF THE RIMOPORTULA OF FRESHWATER GENERA IN THE CENTRIC DIATOM FAMILY THALASSIOSIRACEAEDiatom Research, 1987
- DIMORPHISM INCYCLOSTEPHANOS DUBIUS(BACILLARIOPHYTA) AND THE MORPHOLOGY OF INITIAL VALVESDiatom Research, 1987
- STEPHANODISCUS GALILEENSISSP.NOV. FROM HOLOCENE SUBSURFACE SEDIMENTS OF LAKE KINNERET, ISRAELDiatom Research, 1987
- The morphology and taxonomy of the diatomStephanodiscus neostraeasp. nov.British Phycological Journal, 1986
- A taxonomic reappraisal of someStephanodiscusspecies (Bacillariophyta)British Phycological Journal, 1986