IMAGE OF

Gyrosigma attenuatum

(Kützing) Rabenhorst 1853      Category: Symmetrical biraphid
BASIONYM: Frustulia attenuata
SYNONYM(S): Navicula attenuata (Kützing) Kützing 1844 | Gyrosigma attenuata (Kützing) Cleve 1894 

Gyrosigma acuminatum

 

Halamphora coffeaeformis

LM scalebar = 10 µm

Slide Number: Iowa Lakeside Lab, ILL2015-057 (I. Tunno)

Site ID: Iowa Lakeside Lab, ILL2015-057

Site Name: Lake Macbride, Lake Macbride State Park, Solon, Iowa

Latitude: 41.79799

Longitude: -91.5690

Caption: Valve view

Notes: Epilithic sample from shoreline. Sample credit: E. V. Jordan and J.D. Woodell

Contributor: Joanna Gauthier - June 2015