IMAGE OF
Psammothidium helveticum
(Hustedt) Bukhtiyarova and Round 2007 Category: Monoraphid
BASIONYM: Achnanthes austriaca var. helvetica
LM scalebar = 10 µm
Slide Number: ANSP GC106251a
Site ID: USGS NECB0802ADE0004BA
Site Name: STILLWATER RIVER NEAR STERLING, MA
Latitude: 42.4108
Longitude: -71.7917
Caption: raphe valve
Contributor: Marina Potapova - May 2010