Nupela carolina

Potapova and Clason in Potapova et al. 2003      Category: Symmetrical biraphid
BASIONYM: Nupela carolina Potapova and Clason 2003

Nitzschia valdecostata

 

Nupela decipiens

LM scalebar = 10 µm = 80 pixels.



Observations

Contributor: Marina Potapova - October 2010
Length Range: 5-15 µm
Width Range: 2.4-4.4 µm
Striae in 10 µm: 42-54

Description

Valves elliptical-lanceolate. The smallest cells may become oval. Frustule slightly bent in girdle view. The distance between central raphe endings is slightly longer on the convex valve than on the concave valve. Terminal raphe fissure forming a curved opening to the primary side of the valve. Axial area linear, narrow. Central area square or lyre-shaped, formed by interrupted central striae, often with several isolated areolae, appearing convex under LM. Transapical striae radiate, 42-54 in 10 μm. Outer areolae openings are slightly transapically elongate, covered by hymenes lying flush with the valve surface. Inner openings of areolae are small, round or oval foramina.



Original Description

Basionym: Nupela carolina
Author: Potapova and Clason 2003
Length Range: 5-15 µm
Width Range: 2.4-4.4 µm
Striae in 10 µm: 42-54

Original Description

Valves elliptical-lanceolate, 5-15 μm long, 2.4-4.4 μm wide. The smallest cells may become oval. Frustule slightly bent in girdle view. The distance between central raphe endings is slightly longer on the convex valve than on the concave valve. Terminal raphe fissure forming a curved opening to the primary side of the valve. Axial area linear, narrow. Central area square or lyre-shaped, formed by interrupted central striae, often with several isolated areolae, appearing convex under LM. Transapical striae radiate, 42-54 in 10 μm. Outer areolae openings are slightly transapically elongate, covered by hymenes lying flush with the valve surface. Inner openings of areolae are small, round or oval foramina.

Original Images

Original text and images reproduced with permission by the author.


Cite This Page:
Potapova, M. (2010). Nupela carolina. In Diatoms of the United States. Retrieved April 16, 2014, from http://westerndiatoms.colorado.edu/taxa/species/nupela_carolina

Species: Nupela carolina

Contributor: Marina Potapova

Reviewer: Sarah Spaulding

Citations

Potapova, M., Ponander, K.C., Lowe, R.L., Clason, T.A. and Bahls, L.L. (2003). Small-celled Nupela speces from North America. Diatom Research 18: 293-306.

Links & ID's

Index Nominum Algarum (INA)

Original INA

California Academy of Sciences (CAS)

Nupela carolina CAS

North American Diatom Ecological Database (NADED)

NADED ID: 92012

Autecology Discussion