Visit us at diatoms.org

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.

IMAGE OF

Nupela impexiformis

(Lange-Bert. in Lange-Bert. and Krammer) Lange-Bert. 1999      Category: Symmetrical biraphid
BASIONYM: Achnanthes impexiformis

Nupela frezelii

 

Nupela lapidosa

SEM scalebar = 5 ┬Ám

Site ID: ANSP WACA019

Site Name: Snow Lake, WA

Latitude: 46.758

Longitude: -121.698

Caption: External view of raphe valve with eroded areolae occlusions

Contributor: - March 2011