Desmids –
Archaeplastida (Part)
Observations on Micrasterias ralfsii
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Micrasterias ralfsii (Brébisson ex Ralfs) Škaloud, Nemjova, Vesela, Černá & Neustupa 2011
Most likely ID: n.a.
Basionym: Cosmarium ralfsii Brébisson ex Ralfs 1848
Add’l Synonyms: Pleurotaeniopsis ralfsii (Brébisson ex Ralfs) De Toni 1889

Sampling date 06/2024. Scale bars indicate 50 µm.
Six images, five of them in a slide changer.
First: | Synoptic representation of the cell surface. Image taken with a stereo microscope with a high aperture objective. |
Second: | Synoptic representation of the cell surface. The very fine granules on the cell wall become visible. |
Third and fourth: | Two optical cross-sections showing cell wall granules and some chloroplast wings. |
Fifth: | Optical cross-section showing chloroplast wings and some pyrenoids. |
Please click on < or > on the image edges or on the dots at the bottom edge of the images to browse through the slides!
Place name: Wetland Lauchseemoor, Fieberbrunn (Tyrol, Austria)
Latitude: 47.46954439 Longitude: 12.53826499
First image: Stereo microscope Olympus SZX16, camera Olympus OM-D M5 MKII.
Others: Microscope Zeiss Universal, camera Olympus OM-D M5 MKII. DOF images.
© 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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striolatum
teliferum
pseudopyramidatum
pyramidatum
scabrum
capitulum
forficulatum
oligacanthum
var. incisum
chlamydosporum
arcuatum
var. subavicula
truncata
var. quadrata
rubescens
venustum
var. excavatum
ralfsii
var. montanum
ralfsii
digitus
acerosum
intermedium
dissiliens
kuetzingii
ralfsii
var. hybridum
aureus
botrytis
quadratum
quadrum
crassa
digitus
var. lamellosum
digitus
var. latum
oblongum
interruptum
spec.
spec.
kinahanii
spec.
polymorphum
var. polymorphum
brebissonii
rotata
swartzii
antilopaeum
neosinuosum
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