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Encyonopsis hustedtii has a higher stria density. Encyonopsis descripta is larger and has a larger central area. Encyonopsis robusta is distinct from E. microcephala, as their autecology differs and E. robusta lacks the dorsiventral aspect of E. microcephala.

LM scalebar = 10 µm
Encyonopsisnellieae0 Encyonopsisnellieae1 Encyonopsisnellieae15 Encyonopsisnellieae2 Encyonopsisnellieae3 Encyonopsisnellieae4 Encyonopsisnellieae5
Length Range
13.1-20.6 µm
Width Range
3.0-3.8 µm
Striae in 10 µm
19-22

Encyonopsis hustedtii

L.L.Bahls 2013

Encyonopsiseliseae1 Encyonopsiseliseae2 Encyonopsiseliseae3 Encyonopsiseliseae4 Encyonopsiseliseae5
Length Range
14.4-19.6 µm
Width Range
3.3-4.0 µm
Striae in 10 µm
23-26

Encyonopsis descripta

(Hust.) Krammer 1997

Encyonopsis Descripta3 Encyonopsis Descripta7 Encyonopsis Descripta6 Encyonopsis Descripta1 Encyonopsis Descripta2
Length Range
25.7-29.9 µm
Width Range
5.4-6.6 µm
Striae in 10 µm
18-20 at valve center, 20-22 near the apices

Encyonopsis microcephala

(Grunow) Krammer 1997

Encyonemopsis Microcephala 004 Encyonemopsis Microcephala 006 Encyonemopsis Microcephala 001 Encyonemopsis Microcephala 002 Encyonemopsis Microcephala 005 Encyonemopsis Microcephala 003 Encyonemopsis Microcephala 007
Length Range
10-16 µm
Width Range
3-4 µm
Striae in 10 µm
22-24