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Diatoms of the United States is now known as Diatoms of North America.
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Aulacoseira alpigena

(Grunow) Krammer 1991      Category: Centric
BASIONYM: Melosira distans var. alpigena

Asterionella ralfsii var. americana


Aulacoseira ambigua

LM scalebar = 10 ┬Ám

Slide Number: ANSP GC 109665a

Site ID: MC05BASSC10

Site Name: Bass Creek

Latitude: 46.57366

Longitude: -114.14642

Caption: valve view, showing ringleiste

Contributor: Marina Potapova - May 2009