Desmids –
Archaeplastida (Part)
Observations on Staurastrum bicorne
Gallery Prof. Rupert Lenzenweger
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Staurastrum bicorne Hauptfleisch 1888
Most likely ID: n.a.
Basionym: n.a.
Add’l Synonyms: n.a.
Note: Coesel synonymizes St. bicorne and St. johnsonii.
Description: The cells including their protrusions appr. 1.3 times wider than long. The cell halves are bell-shaped and have a little swelling on the base. The cell arms are straight or small inward curved with one pair of pricks each at the ends. Along the cell ends the cell wall is covered with a row of warts with multiple apices.
Dimension: Length 52–73 µm, width 72–106 µm.
Occurrence: Sporadic in the Alps in medium acidic zones of moorlands and mountain lakes.
Ubiquitous, mainly in colder climes (among others in Alaska, the Arctic, Newfoundland).
Left: Original graphic by Prof. Lenzenweger.
Right: Photomicrograph by Prof. Lenzenweger. For microphotography, the microscope illumination was adjusted in such a way that as many features as possible that are important for species identification are prominently displayed.
Copyright by Prof. Rupert Lenzenweger, Ried im Innkreis, 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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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
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brebissonii
rotata
swartzii
antilopaeum
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forficulatum
var. verrucosum
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