Observations on Stephanodiscus astraea
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Stephanodiscus astraea (Kützing) Grunow 1880
Most likely ID: n.a.
Basionym: Cyclotella astraea Kützing 1849
Add’l Synonyms: Discoplea astraea Ehrenberg 1844
Stephanodiscus astraea var. typica Cleve 1951
Sampling date 04/2026. Cell diameter is 50 µm.
Four images. No. 3 is a DOF image showing seven of the numerous chitinous floating appendages.
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Place name: Lake Ratzeburg (Germany)
Latitude: 53.705412 Longitude: 10.773822 Elevation: 1 m
Microscope Olympus BX51, objective Olympus UPlanSApo 100x, camera Canon R5 Mark II.
Copyright Gerhard Loidolt, Baden, Austria.
© Wolfgang Bettighofer,
images under Creative Commons License V 3.0 (CC BY-NC-SA).
For permission to use of (high resolution) images please contact postmaster@protisten.de.
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New items
acutiformis
astraea
bipyramidatum
cinctum
pulchrum
melicerta
lunatus
brebissonii
montanum
directum
truncatum
vestitum
var. vestitum
meneghinianum
didelta
furcata
jenneri
radiosa
ventricosum
insigne
cucurbita
fimbriata
cucurbita
wailesii
filifera
brightwellii