Simonsenia delognei

Lange-Bertalot 1979      Category: Nitzschioid
BASIONYM: Nitzschia delognei Grunow in Van Heurck 1885

Sellaphora wallacei

 

Stauroforma exiguiformis

LM scalebar = 10 µm = 80 pixels.



Observations

Contributor: Carrie Graeff - October 2012
Length Range: 9.5-14.5 µm
Width Range: 2.5 µm
Striae in 10 µm:

Description

The valves are small and lanceolate or linear-lanceolate with apices that are extremely narrowly rounded and often protracted. The striae are generally biseriate but become multiseriate and disorganized near the raphe canal. The striae are not resolvable in the LM, but the presence of transapical costae gives the valves the appearance of having resolved striae. The costa density is 18 in 10 microns.



Original Description

Basionym: Nitzschia delognei
Author: Grunow in Van Heurck 1885
Length Range: µm
Striae in 10 µm:

Original Description

Original Images


Cite This Page:
Graeff, C. (2012). Simonsenia delognei. In Diatoms of the United States. Retrieved April 16, 2014, from http://westerndiatoms.colorado.edu/taxa/species/simonsenia_delognei

Species: Simonsenia delognei

Contributor: Carrie Graeff

Reviewer: Sarah Spaulding

Citations

Lange-Bertalot, H. (1979). Simonsenia, a new genus with morphology intermediate between Nitzschia and Surirella. Bacillaria 2: 127-136.

Van Heurck, H. (1885). Synopsis des Diatomées de Belgique. Texte. Martin Brouwers & Co., Anvers. p. 157. (description).

Links & ID's

Index Nominum Algarum (INA)

Transfer INA

California Academy of Sciences (CAS)

Simonsenia delognei CAS

North American Diatom Ecological Database (NADED)

NADED ID: 59001

Autecology Discussion