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Diatoms of the United States is now known as Diatoms of North America.
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Planothidium haynaldii

(Schaarschmidt) Lange-Bert. 1999      Category: Monoraphid
BASIONYM: Achnanthes haynaldii
SYNONYM(S): Planothidium lanceolatum var. haynaldii (Schaarschmidt) Bukht. | Achnanthes lanceolata var. haynaldii (Schaarschmidt) Cleve  

Planothidium frequentissimum


Planothidium holstii

SEM scalebar = 5 ┬Ám

Site ID: ANSP NRSA0108

Site Name: Unnamed stream, Meagher Co, MT

Latitude: 46.93093

Longitude: -110.86984

Caption: Internal view of rapheless valve

Contributor: - March 2011