Nupela frezelii

Potapova 2011      Category: Symmetrical biraphid
BASIONYM: Nupela frezelii Potapova 2011

Nupela fennica

 

Nupela impexiformis

LM scalebar = 10 µm = 80 pixels.



Observations

Contributor: Marina Potapova - October 2010
Length Range: 10-29 µm
Width Range: 3.8-6.3 µm
Striae in 10 µm: 29-33

Description

Valves are lanceolate to linear-elliptical with rounded to slightly drawn-out ends. Striae are radiate. Axial area is rhombic-lanceolate. Central area is asymmetrical, reaching valve margin on one side of the valve. The raphe is absent on one of the valves. The raphe has a double-curved external slit and straight internal slit. External proximal raphe ends are simple or slightly expanded, internal proximal raphe slits are T-shaped.



Original Description

Basionym: Nupela frezelii
Author: Potapova 2011
Length Range: 10-29 µm
Width Range: 3.8-6.3 µm
Striae in 10 µm: 29-33

Original Description

Valves lanceolate to linear-elliptical with rounded to slightly drawn-out ends, 3.8–6.3μm wide, 10– 29μm long. Striae radiate, 29–33 in 10μm. Axial area rhombic-lanceolate. Central area asymmetrical, reaching the valve margin on one side of the valve. The raphe absent on one of the valves. The raphe with double-curved external slit and straight internal slit. External proximal raphe ends simple or slightly expanded, internal proximal raphe slits T-shaped. Terminal raphe fissures deflected towards secondary side of the valve.

Original Images


Cite This Page:
Potapova, M. (2010). Nupela frezelii. In Diatoms of the United States. Retrieved December 19, 2014, from http://westerndiatoms.colorado.edu/taxa/species/nupela_frezelii

Species: Nupela frezelii

Contributor: Marina Potapova

Reviewer: Sarah Spaulding

Citations

Potapova, M. (2011). New species and combinations in the genus Nupela from the USA. Diatom Research. 10.1080/0269249X.2011.575111

Links & ID's

Index Nominum Algarum (INA)

California Academy of Sciences (CAS)

North American Diatom Ecological Database (NADED)

NADED ID:

Autecology Discussion