Gomphosphenia lingulatiformis

(Lange-Bertalot and Reichardt) Lange-Bertalot 1995      Category: Asymmetrical biraphid
BASIONYM: Gomphonema lingulatiforme Lange-Bertalot and Reichardt in Lange-Bertalot 1993

Gomphosphenia grovei

 

Halamphora coffeaeformis

LM scalebar = 10 µm = 80 pixels.



Observations

Contributor: Pat Kociolek - September 2011
Length Range: 12-50 µm
Width Range: 5.5-7.0 µm
Striae in 10 µm: 14-18

Description

Valves at the higher end of the size range are linear-clavate with undulate margins, while smaller valves are clavate with smooth margins. The headpole is narrowly rounded to nearly acute and the footpole is narrowly rounded. The axial area is lanceolate, narrow at the poles, and expanded towards the center. Stigmata are absent. The raphe is straight, filiform, and the external proximal raphe ends are dilated. The central nodule is distinct and round. The striae are formed by a single areola, with an additional 1-2 isolated areolae towards the axial area. The striae are radiate, becoming parallel near the footpoles. Septa and pseudosepta are absent.



Original Description

Basionym: Gomphonema lingulatiforme
Author: Lange-Bertalot and Reichardt in Lange-Bertalot 1993
Length Range: µm
Striae in 10 µm:

Original Description

Original Images


Cite This Page:
Kociolek, P. (2011). Gomphosphenia lingulatiformis. In Diatoms of the United States. Retrieved July 23, 2014, from http://westerndiatoms.colorado.edu/taxa/species/gomphosphenia_lingulatiformis1

Species: Gomphosphenia lingulatiformis

Contributor: Pat Kociolek

Reviewer: Marina Potapova

Citations

Kociolek, J.P. and Kingston, J.C. (1999). Taxonomy, ultrastructure, and distribution of some gomphonemoid diatoms (Bacillariophyceae: Gomphonemataceae) from rivers in the United States. Canadian Journal of Botany 77: 686-705. 10.1139/cjb-77-5-686

Kociolek, J.P., Yang, J.-R. and Stoermer, E.F. (1988). Taxonomy, ultrastructure and systematic position of the Gomphonema grovei M. Schm.-species complex (Bacillariophyceae). Nova Hedwigia 47: 145-158.

Lange-Bertalot, H. (1993). 85 Neue taxa und uber 100 weitere neu definierte Taxa erganzend zur Subwasserflora von Mittleuropa. Bibliotheca Diatomologica 27, 454 p. Cramer, Berlin, Stuttgart.

Lange-Bertalot, H. (1995). Gomphosphenia paradoxa nov. spec. et nov. gen. und Vorschlag zur Lösung taxonomischer Probleme infolge eines veränderten Gattungskonzepts von Gomphonema (Bacillariophyceae). Nova Hedwigia, 60(1-2): 241-252 .

Links & ID's

Index Nominum Algarum (INA)

Original INA

California Academy of Sciences (CAS)

Gomphosphenia lingulatiformis CAS

North American Diatom Ecological Database (NADED)

NADED ID: 209003

Autecology Discussion