Visit us at

Diatoms of the United States is now known as Diatoms of North America.
This site has been redesigned and updated, and will be closing soon.


Pinnularia nodosa

(Ehrenb.) W.Sm. 1856      Category: Symmetrical biraphid
BASIONYM: Navicula nodosa

Pinnularia microstauron


Pinnularia nodosa var. percapitata

LM scalebar = 10 ┬Ám

Slide Number: MDC 41-34

Site ID: MDC 493701

Site Name: Mexican Cut Nature Preserve, Pond 44, Gunnison County, CO

Latitude: 39.0292

Longitude: -107.0653

Caption: morphotype 1

Contributor: Loren Bahls - March 2014