Cosmarium pseudopyramidatum var. borgei Krieg. & Gerloff
|
publication ID |
https://doi.org/10.5252/cryptogamie-algologie2025v46a3 |
|
DOI |
https://doi.org/10.5281/zenodo.17109013 |
|
persistent identifier |
https://treatment.plazi.org/id/C7390B66-FFF5-913A-AFD2-F8FC0D59FEEC |
|
treatment provided by |
Plazi |
|
scientific name |
Cosmarium pseudopyramidatum var. borgei Krieg. & Gerloff |
| status |
|
Cosmarium pseudopyramidatum var. borgei Krieg. & Gerloff * ( Fig. 2K View FIG )
Die Gattung Cosmarium 2: 127 ( Krieger & Gerloff 1965).
DISTRIBUTION. — Brazil, Japan, Subantarctic Islands. Amazon Basin: Förster (1969); Thomasson (1977); Aprile & Mera (2007); Cadima (2013). Western Amazonia (lowlands): no records.
DESCRIPTION
Cells 64.4-66.0 µm long, 42.0-42.8 µm wide, isthmus 15.0 µm; cells 1.5-1.6 times longer than wide. Cells with oval contour, deeply constricted in the median part, linear median sinus, narrow; pyramidal-subtruncate semicells, lateral margins slightly convex, apex broadly rounded, rounded basal and apical angles, hyaline, densely punctuated cell wall but not as finely as the type variety; axial chloroplast.
REMARKS
Our specimens coincided with the morphological characteristics and size presented by Krieger & Gerloff (1965) in their original description of the taxon. Also, they are similar in size to the populations described by Förster (1969) for the Brazilian Amazon, andOliveira de et al. (2010)for northeast Brazil.
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 |