NEW AND INTERESTING MAYAMAEA SPECIES (BACILLARIOPHYCEAE) FROM OSOGOVO

Zlatko  Levkov; Dušica  Zaova; Danijela  Mitić-Kopanja

doi:10.20903/masa/nmbsci.2023.44.26

NEW AND INTERESTING MAYAMAEA SPECIES (BACILLARIOPHYCEAE) FROM OSOGOVO

Authors

Zlatko Levkov Institute of Biology, Faculty of Natural Sciences, Ss Cyril and Methodius University in Skopje, RN Macedonia Author
Dušica Zaova Institute of Biology, Faculty of Natural Sciences, Ss Cyril and Methodius University in Skopje, RN Macedonia Author
Danijela Mitić-Kopanja Institute of Biology, Faculty of Natural Sciences, Ss Cyril and Methodius University in Skopje, RN Macedonia Author

DOI:

https://doi.org/10.20903/masa/nmbsci.2023.44.26

Keywords:

diatoms; diversity; morphology; springs; taxonomy

Abstract

Observations of a sample from a small spring on Mountain Osogovo revealed the presence of several interesting and previously unknown small-celled diatom species. Among them, the genus Mayamaea shows relatively high diversity, with at least eight species. Four species are presented in this study, two of which are described as new: Mayamaea matevskiana sp. nov. and Mayamaea stafilovii Levkov & Zaova sp. nov. Mayamaea matevskiana is characterized by elliptical to elliptic-lanceolate valves, relatively coarse and strongly radiate striae, an indistinct central area bordered by more distantly positioned central striae, slightly expanded proximal raphe ends, and simple distal raphe ends. Mayamaea stafilovii has a similar valve morphology and shape of the central area to M. matevskiana but differences can be observed in the valve size (which is considerably smaller than M. matevskiana) and the shape of the external distal raphe ends (which are long, slightly deflected, and extend onto the valve mantle). The new species are described based on detailed light and scanning electron microscopic observations.

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