Cosmarium pyramidatum fo.
Reference: Lenzenweger 1999
Synonym: Cosmarium incrassatum (Fritsch et Rich) Willi Krieger et Gerloff var. schmidlei (Printz) Willi Krieger et Gerloff sensu Lenzenweger 1999
Remarks: Besides that, Cosmarium incrassatum (Fritsch et Rich) Willi Krieger et Gerloff is an illegitimate homonym of Cosmarium incrassatum Playfair, the similarity between the specimen found by Lenzenweger (and depicted here) with previously described taxa is doubtful or unclear. The best option for this taxon, that is larger than Cosmarium pyramidatum and more densely punctate, almost scrobiculate, would be to make it a new species.
C0500
2014050021
C0500
2014050021
C0500
2014050021
2014050-021
Front view
Austria
2014050-021
Side view
Austria
2014050-021
Side view
Austria
C1000
2014050021
C1000
2014050021
2014050-021
Detail
Austria
Pore pattern in the center of the semicell
2014050-021
Detail
Austria
Pore pattern in the center of the semicell (different focus)
C1000
2014050021
2014050-021
Detail
Austria
Pore pattern on the side of the semicell
All photos copyright: © 2009-2020 Alfred van Geest - Send comments to asvg@xs4all.nl