Pterosperma polygonum Ostenfeld in Ostenfeld & Schmidt, 1902

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Pterosperma cf. polygonum

The non-motile phase (=phycoma), surface of outer wall showing pores. (Arrow=row of pores) (DIC).

Photographer/artist Mats Kuylenstierna

Additional image information

Title
Pterosperma cf. polygonum
Photographer/artist
Mats Kuylenstierna
Copyright holder
Maria Kuylenstierna
Institute
University of Gothenburg, Marine botany
Contributing organisation
University of Gothenburg
Contributor
Bengt Karlson
Caption
The non-motile phase (=phycoma), surface of outer wall showing pores. (Arrow=row of pores) (DIC).
Geographic area
Skagerrak - Swedish coast
License
Creative Commons Attribution-NoDerivs 3.0 Unported
Technique
Light microscopy
Preservation
No preservation
Contrast enhancement
DIC/Nomarski
Stain
No stain
Image galleries
Kuylenstierna, Skagerrak-Kattegat

Description

IDs in other systems
Morphology
Alae in a pentagonal pattern and raws of pores in the outer wall of phycoma phase
Other remarks
The phycoma stage from Skagerrak was much smaller than reported from the litterature
Life form
Phycoma phase and solitary flagellate?
Size
Diameter=(18?)30-40 µm
Literature
Ostenfeld, C. H. & Schmidt, J. 1902. Plankton fra det Røde Hav og Adenbugten. Vidensk. Medd. Naturh. Foren. i Kbhvn. 1901: 141-182
Parke, M., Boalch, G. T., Jowett, R. & Harbour, D. S. 1978. The genus Pterosperma (Prasinophyceae): species with a single equatorial ala. J. Mar. Biol. Ass. U.K., 58: 239-276.
Throndsen, J. 1993. The planktonic marine flagellates. In: (Tomas eds.) Marine Phytoplankton: a guide to naked flagellates and coccolithophorids. Academic Press, San Diego, pp. 7-145.

Change History

  • 2011-10-03 20:22:30 Bengt Karlson - Updated media metadata for Pterosperma polygonum_1.gif