Staurastrum octangulare Grönblad
|
publication ID |
https://doi.org/10.5252/cryptogamie-algologie2025v46a3 |
|
DOI |
https://doi.org/10.5281/zenodo.17109037 |
|
persistent identifier |
https://treatment.plazi.org/id/C7390B66-FFE9-9127-AE0D-FDF90F2AFAF3 |
|
treatment provided by |
Plazi |
|
scientific name |
Staurastrum octangulare Grönblad |
| status |
|
Staurastrum octangulare Grönblad
( Fig. 7B View FIG )
Acta Societatis Scienctiarum Fennicae, Nova Series B, 2 (6): 28 ( Grönblad 1945).
DISTRIBUTION. — America, South-west Asia. Amazon Basin: Grönblad (1945); Scott et al. (1965); Förster (1969); Sophia & Huszar (1996). Western Amazonia (lowlands): Krieger & Scott (1957).
DESCRIPTION
Cells 25.4-30.4 µm long, 19.7-24.7 µm wide; isthmus 9.8- 13.8 µm; cells 1.5-1.9 times longer than wide. Cells small, sinus very open, inwardly acute, slightly constricted; semicells in front view subquadrate to suboval; apical and lateral angles of each semicell produced into short bifid processes with spines.
REMARKS
This taxon is somewhat similar to Staurastrum hystrix Ralfs in size and outline, however it can be set apart by the presence of short bifid processes with spines, produced on each semicell’s lateral and apical angles. Our specimens coincided morphologically with those of the original description in Grönblad (1945) and are within the size range given by Scott et al. (1965) and Sophia & Huszar (1996) for the species in the Brazilian Amazon.
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.
|
Kingdom |
|
|
Phylum |
|
|
Class |
|
|
Order |
|
|
Family |
|
|
Genus |