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Nupela elegantula differs from N. fennica and N. vitiosa by absence of raphe on one valve and less linear valves.

LM scalebar = 10 µm
Nupela elegantula LM1 Nupela elegantula LM4 Nupela elegantula LM2 Nupela elegantula LM3 Nupela elegantula LM5
Length Range
12-26 µm
Width Range
3.1-4.0 µm
Striae in 10 µm
34-38

Nupela fennica

(Hust.) Lange-Bert. 2004

Gs024284  Nufennica 7 Ed Ih 020665  Nufennica 1 Ed Gs024284  Nufennica 6 Gs024284  Nufennica 3 Ed Gs024284  Nufennica 8
Length Range
9-18 µm
Width Range
2.7-3.5 µm
Striae in 10 µm
35-40

Nupela vitiosa

(Schim.) Siver and Hamilton 2005

Nupela vitiosa LM5 Nupela vitiosa LM1 Nupela vitiosa LM7 Nupela vitiosa LM3 Nupela vitiosa LM2 Nupela vitiosa LM6 Nupela vitiosa LM4
Length Range
6.5-15.0 µm
Width Range
2.7-3.6 µm
Striae in 10 µm
35-40