Staurastrum setigerum var. subvillosum Grönblad
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publication ID |
https://doi.org/10.5252/cryptogamie-algologie2025v46a3 |
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DOI |
https://doi.org/10.5281/zenodo.17109041 |
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persistent identifier |
https://treatment.plazi.org/id/C7390B66-FFE9-9127-AC51-FE980A14FB53 |
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Plazi |
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scientific name |
Staurastrum setigerum var. subvillosum Grönblad |
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Staurastrum setigerum var. subvillosum Grönblad *
( Fig. 7D View FIG )
Acta Societatis Scienctiarum Fennicae, Nova Series B, 2 (6): 30 ( Grönblad 1945).
DISTRIBUTION. — Cosmopolitan. Amazon Basin: Förster (1969, 1974); Thomasson (1971); Uherkovich & Schmidt (1974); Uherkovich (1976, 1981), Martins (1986a), Cadima (2013). Western Amazonia (lowlands): no records.
DESCRIPTION
Cells 42.9-47.6 µm long (without spines), 62.9-63.4 µm long (with spines); 40.2-41.9 µm wide (without spines), 62.3- 63.5 µm wide (with spines); isthmus: 12.2µm; cells 1.1 times longer than wide. Cells with strong spines, sometimes curved, highly polymorphic, with the number of spines varying from one cell to another, and even from one semicell to another.
REMARKS
The morphology of our specimens corresponds well with the original description by Grönblad (1945) and with the specimens from Martins (1986a), both from the Brazilian Amazon, in having two strong spines on the angles of semicells and the presence of slender and slightly curved spines between the strong spines.
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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