IMAGE OF

Psammothidium helveticum

(Hustedt) Bukhtiyarova and Round 2007      Category: Monoraphid
BASIONYM: Achnanthes austriaca var. helvetica

Psammothidium harveyi

 

Psammothidium lauenburgianum

LM scalebar = 10 ┬Ám

Slide Number: ANSP GC104328b

Site ID: USGS NECB0800ADE0007B

Site Name: MILL RIVER AT SUMMER STREET NEAR BLACKSTONE, MA

Latitude: 42.0408

Longitude: -71.5156

Caption: rapheless valve

Contributor: Marina Potapova - May 2010