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Diatoms of North America
Practitioners
Morphology
Centric
Araphid
Eunotioid
Symmetric Biraphid
Monoraphid
Asymmetric Biraphid
Epithemioid
Nitzschioid
Surirelloid
Genera
Species
Glossary
About Us
News
Projects
Review Board
Taxon Contributors
Contact Us
What are diatoms?
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Images of
Platessa
stewartii
(R.M.Patrick) Potapova 2012
Type Specimen
Slide Number
ANSP GC2194
Site Name
Tributary to Lake Wallenpaupek, PA
Caption
Raphe valve
Notes
HOLOTYPE specimen
Scalebar = 10 µm
Slide Number
ANSP GC2194
Site Name
Tributary to Lake Wallenpaupek, PA
Caption
Rapheless valve
Notes
HOLOTYPE specimen
Scalebar = 10 µm
Slide Number
ANSP GC58967
Site ID
ANSP GCM4482
Site Name
Middle Branch of Big Run, PA
Coordinates
41.19, -77.77
Caption
raphe valve
Scalebar = 10 µm
Slide Number
ANSP GC58800
Site ID
ANSPGCM4685
Site Name
Bull Run, PA
Coordinates
41.42, -77.46
Caption
raphe valve
Scalebar = 10 µm
Slide Number
ANSP GC113265b
Site ID
ANSP VA0002332
Site Name
East Fork Kent Branch, VA
Coordinates
37.9, -78.16
Caption
raphe valve
Scalebar = 10 µm
Slide Number
ANSP GC58967
Site ID
ANSP GCM4482
Site Name
Middle Branch of Big Run, PA
Coordinates
41.19, -77.77
Caption
rapheless valve
Scalebar = 10 µm
Slide Number
ANSP GC58967
Site ID
ANSP GCM4482
Site Name
Middle Branch of Big Run, PA
Coordinates
41.19, -77.77
Caption
rapheless valve
Scalebar = 10 µm
Site ID
ANSP GCM4731
Name
Stony Lick Run, PA
Coordinates
41.62, -77.88
Caption
Internal view of rapheless valve
Scalebar = 5 µm
Site ID
ANSP GCM4731
Name
Stony Lick Run, PA
Coordinates
41.62, -77.88
Caption
External view of rapheless valve
Scalebar = 5 µm
Site ID
ANSP GCM4731
Name
Stony Lick Run, PA
Coordinates
41.62, -77.88
Caption
Internal view of raphe valve
Scalebar = 5 µm
Site ID
ANSP GCM4731
Name
Stony Lick Run, PA
Coordinates
41.62, -77.88
Caption
External view of raphe valve
Scalebar = 5 µm