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Images of Psammothidium helveticum

(Hust.) Bukht. and Round 2007

Type Specimen
Gs100739 Pshelv 2A Ed
  • Slide Number
    ANSP GC106251a
  • Site ID
    USGS NECB0802ADE0004BA
  • Site Name
    STILLWATER RIVER NEAR STERLING, MA
  • Coordinates
    42.4108, -71.7917
  • Caption
    rapheless valve
  • Scalebar = 10 µm
Gs100739 Pshelv 2B Ed
  • Slide Number
    ANSP GC106251a
  • Site ID
    USGS NECB0802ADE0004BA
  • Site Name
    STILLWATER RIVER NEAR STERLING, MA
  • Coordinates
    42.4108, -71.7917
  • Caption
    raphe valve
  • Scalebar = 10 µm
Gsl00810 13A Ed
  • Slide Number
    ANSP GC105704A
  • Site ID
    USGS GAFL0993ADE0020B
  • Site Name
    LITTLE RIVER AT UPPER TY TY RD NEAR TIFTON, GA
  • Coordinates
    31.4817, -83.5842
  • Caption
    raphe valve
  • Scalebar = 10 µm
Gsl00810 6A Ed
  • Slide Number
    ANSP GC105704A
  • Site ID
    USGS GAFL0993ADE0020B
  • Site Name
    LITTLE RIVER AT UPPER TY TY RD NEAR TIFTON, GA
  • Coordinates
    31.4817, -83.5842
  • Caption
    rapheless valve
  • Scalebar = 10 µm
Gsn23403 1A
  • Slide Number
    ANSP GC104328b
  • Site ID
    USGS NECB0800ADE0007B
  • Site Name
    MILL RIVER AT SUMMER STREET NEAR BLACKSTONE, MA
  • Coordinates
    42.0408, -71.5156
  • Caption
    rapheless valve
  • Scalebar = 10 µm
Gsn23403 1B
  • Slide Number
    ANSP GC104328b
  • Site ID
    USGS NECB0800ADE0007B
  • Site Name
    MILL RIVER AT SUMMER STREET NEAR BLACKSTONE, MA
  • Coordinates
    42.0408, -71.5156
  • Caption
    raphe valve
  • Scalebar = 10 µm
Gs100739 Pshelv 3B Ed
  • Slide Number
    ANSP GC106251a
  • Site ID
    USGS NECB0802ADE0004BA
  • Site Name
    STILLWATER RIVER NEAR STERLING, MA
  • Coordinates
    42.4108, -71.7917
  • Caption
    rapheless valve
  • Scalebar = 10 µm
Psammothidium helveticum SEM2
  • Site ID
    ANSP GCM4331
  • Name
    Little Morris Run
  • Coordinates
    41.55326, -77.52821
  • Caption
    external view of rapheless valve
  • Scalebar = 2 µm
Psammothidium helveticum SEM1
  • Site ID
    USGS SPLT0995ADE0011B
  • Name
    BIG THOMPSON BL MORAINE PARK NR ESTES PARK, CO.
  • Coordinates
    40.3539, -105.5836
  • Caption
    external view of raphe valve
  • Scalebar = 2 µm