Staurastrum pinnatum var. reductum Willi Krieg.
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publication ID |
https://doi.org/10.5252/cryptogamie-algologie2025v46a3 |
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DOI |
https://doi.org/10.5281/zenodo.17109039 |
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persistent identifier |
https://treatment.plazi.org/id/C7390B66-FFE9-9127-AFBA-FA9C0BF0FEEF |
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Plazi |
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Staurastrum pinnatum var. reductum Willi Krieg. |
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Staurastrum pinnatum var. reductum Willi Krieg. *
( Fig. 7C View FIG )
Archiv für Hydrobiologie, Supplement 11: 204 ( Krieger 1932).
DISTRIBUTION. — Cosmopolitan. Amazon Basin: Förster (1969); Cadima (2013); Souza de et al. (2019). Western Amazonia (lowlands): no records.
DESCRIPTION
Cells 28.0-29.2 µm long, 36.5-37.7 µm wide; isthmus: 6.5-9.1µm; cells 1.3 times wider than long. Hyaline cell wall, glabrous at the base of each semicell. Semicells oval, processes short and a pair of spines at the base of each process.
REMARKS
This variety differs from the type variety by having shorter processes and by the presence of two spines at the base of each process. Our specimens correspond in morphology with those reported by Förster (1969) for the Brazilian Amazon, Oliveira de et al. (2016b) for the northeastern region of Brazil, and Tell (1980) for Argentina, but our specimens were slightly larger than those in Förster (1969) and Oliveira de et al. (2016b), and slightly shorter than size shown in Tell (1980).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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