Are most of the domoic acid-producing species of the diatom genus Pseudo-nitzschia cosmopolites? von Hasle, Grethe R.

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(1653) Proposal to Conserve the Name Fragilariopsis against Pseudo-eunotia (Bacillariophyceae) von Silva, Paul C., Hasle, Grethe R.

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Taxonomic and Nomenclatural History of Fragilaria (Bacillariophyceae) von Silva, Paul C., Hasle, Grethe R.

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(1283) Proposal to Conserve the Name Synedra nitzschioides (Bacillariophyceae) with a Conserved Type to Preserve the Current Application of the Generic Name Thalassionema von Silva, Paul C., Hasle, Grethe R.

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BRACKISH WATER AND FRESHWATER SPECIES OF THE DIATOM GENUS SKELETONEMA. II. SKELETONEMA POTAMOS COMB. NOV.1 von Hasle, Grethe R., Evensen, Dale L.

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Diatoms: Cleaning and Mounting for Light and Electron Microscopy von Hasle, Grethe R., Fryxell, Greta A.

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Some Nitzschia and related diatom species from fast ice samples in the Arctic and Antarctic von Medlin, LindaK, Hasle, GretheR

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THALASSIOSIRA ECCENTRICA (EHRENB.) CLEVE, T. SYMMETRICA SP. NOV., AND SOME RELATED CENTRIC DIATOMS von Fryxell, Greta A., Hasle, Grethe R.

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Brackish water and freshwater species of the diatom genus Skeletonema. II. Skeletonema potamos comb. nov von Hasle, G.R, Evensen, D.L

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Nitzschia cylindroformis sp. nov., a common and abundant nanoplankton diatom of the eastern subarctic Pacific von Hasle, Grethe R., Booth, Beatrice C.

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BRACKISH WATER AND FRESHWATER SPECIES OF THE DIATOM GENUS SKELETONEMA. II. SKELETONEMA POTAMOS COMB. NOV.1 von Hasle, Grethe R., Evensen, Dale L.

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BRACKISH WATER AND FRESHWATER SPECIES OF THE DIATOM GENUS SKELETONEMA. II. SKELETONEMA POTAMOS COMB. NOV. 1 von Hasle, Grethe R., Evensen, Dale L.

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THALASSIOSIRA ECCENTRICA (EHRENB.) CLEVE, T. SYMMETRICA SP. NOV., AND SOME RELATED CENTRIC DIATOMS1 von Fryxell, Greta A., Hasle, Grethe R.

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THALASSIOSIRA ECCENTRICA (EHRENB.) CLEVE, T. SYMMETRICA SP. NOV., AND SOME RELATED CENTRIC DIATOMS 1 von Fryxell, Greta A., Hasle, Grethe R.

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THALASSIOSIRA ECCENTRICA (EHRENB.) CLEVE, T. SYMMETRICA SP. NOV., AND SOME RELATED CENTRIC DIATOMS1 von Fryxell, Greta A., Hasle, Grethe R.

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Coccolithophorids of the Gulf of Mexico von Gaarder, Karen R., Hasle, Grethe R.

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A STUDY OF THE PSEUDO-NITZSCHIA PSEUDODELICATISSIMA/CUSPIDATA COMPLEX (BACILLARIOPHYCEAE): WHAT IS P. PSEUDODELICATISSIMA? von Lundholm, Nina, Moestrup, Øjvind, Hasle, Grethe Rytter, Hoef-Emden, Kerstin

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Pseudo-nitzschia pungens and P. multiseries (Bacillariophyceae): Nomenclatural history, morphology, and distribution von Hasle, G R

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PSEUDO-NITZSCHIA AS A GENUS DISTINCT FROM NITZSCHIA (BACILLARIOPHYCEAE) von Hasle, Grethe Rytter

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The net phytoplankton in Kongsfjorden, Svalbard, July 1988, with general remarks on species composition of arctic phytoplankton von HASLE, GRETHE RYTTER, HEIMDAL, BERIT RIDDERVOLD

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