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Compare Geissleria decussis

(Østrup) Lange-Bert. and Metzeltin 1996

Compare

Geissleria decussis is similar in shape to Placoneis clementis, but G. decussis is smaller and has capitate ends. Placoneis clementis also may have additional stigmata. Live cells of P. clementis have a different chloroplast number and structure. Navicula kotschyi is similar in shape, but possesses punctate striae, a feature not present in G. decussis.

LM scalebar = 10 µm
Geissleria decussis LM7 Geissleria decussis LM2 Geissleria decussis LM4 Geissleria decussis LM1 Geissleria decussis LM3 Geissleria decussis LM5 Geissleria decussis LM6
Length Range
16-30 µm
Width Range
6–9 µm
Striae in 10 µm
14-18

Also compare to

Placoneis clementis

(Grunow) E.J.Cox

Navicula kotschyi

Grunow

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