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Aulacoseira ambigua

(Grunow) Simonsen 1979      Category: Centric
BASIONYM: Melosira crenulata var. ambigua
SYNONYM(S): Melosira ambigua (Grunow in Van Heurck) O.Müll. 

Aulacoseira alpigena

 

Aulacoseira canadensis

SEM scalebar = 5 µm

Site ID: ANSP GSL00374

Site Name: RICE CREEK AT CENTRAL AVE. IN FRIDLEY, MN

Latitude: 45.093

Longitude: -93.244

Caption: Broken valve with hollow ringleist and bifurcated linking spines

Contributor: - December 2010