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Gomphonema submehleri

Kociolek and Stoermer 1991      Category: Asymmetrical biraphid

Gomphonema stoermeri

 

Gomphonema superiorense

LM scalebar = 10 µm = 80 pixels.



Observations

Contributor: David R.L. Burge - December 2016
Length Range: 25-37 µm
Width Range: 5.2-7.8 µm
Striae in 10 µm: 10-12 at the valve center, 14-16 at the head pole, 14-15 at the foot pole

Description

Valves clavate, tapering to an acutely rounded headpole and an attenuated, rounded footpole. Axial area is narrow, linear-lanceolate, tapering at the apices. Striae are weakly radiate at the central area, occurring 10-12 in 10µm, becoming parallel toward the poles, occurring 14-16 in 10µm. Stria and stigmoid are present in the central area. Raphe is filiform, with proximal ends swollen and the distal ends hooked away from the stigmoid.



Original Description

Basionym:
Author: Kociolek and Stoermer 1991
Length Range: 22-25 µm
Width Range: 7-11 µm
Striae in 10 µm: 8-11 at the valve center, 9-14 at the foot pole

Original Description

Valves robust, elliptical-clavate, with protracted, rostrate head poles and broadly rounded foot poles. The axial area is narrow and the central area is small and irregular. The raphe is lateral and weakly undulate. Apical pore fields are conspicuous. Striae are radiate, 8-11 in 10 µm, strongly radiate and 9-14 in 10 µm at the foot pole, and distinctly punctate. Length 22-55 µm, breadth 7-11 µm.

Original Images


Cite This Page:
Burge, D. (2016). Gomphonema submehleri. In Diatoms of the United States. Retrieved May 25, 2018, from http://westerndiatoms.colorado.edu/taxa/species/gomphonema_submehleri

Species: Gomphonema submehleri

Contributor: David R.L. Burge

Reviewer: Marco Cantonati

Citations

Kociolek, J.P. and Stoermer, E.F. (1991). Taxonomy and ultrastructure of some Gomphonema and Gomphoneis taxa from the Upper Laurentian Great Lakes. Canadian Journal of Botany 69: 1557-1576. 10.1139/b91-200

Links & ID's

Index Nominum Algarum (INA)

Original INA

California Academy of Sciences (CAS)

Gomphonema submehleri CAS

North American Diatom Ecological Database (NADED)

NADED ID:

Autecology Discussion

Gomphonema submehleri is described from an epilithic collection at 38ft deep on Superior Shoal in Lake superior, Michigan (Kociolek and Stoermer 1991). There are no reports of this taxon in the USGS bio-database.