89 CALLITRICHE OBTUSANGULA 1-6
   71 POTAMOGETON PECTINATUS  1-6
   48 LEMNA MINOR L.          1-6
   48 SPARGANIUM SIMPLEX HUDS 1-6
   43 LEMNA TRISULCA L.       1-6
   42 CALLITRICHE OBTUSANGULA 3-6
   40 MYRIOPHYLLUM VERTICILLA 1-6
   39 POTAMOGETON CRISPUS L.  1-6
   35 HELODEA CANADENSIS RICH 1-6
   30 MYRIOPHYLLUM SPICATUM L 1-6
   26 SIUM ERECTUM HUDSON     1-6
   25 CERATOPHYLLUM DEMERSUM  1-6
   25 POTAMOGETON MUCRONATUS  1-5
   19 SPIRODELA POLYRRHIZA (L 1-6
   19 POTAMOGETON DENSUS L.   1-6

   18 NUPHAR LUTEUM SM.       1-6
   18 RANUNCULUS CIRCINATUS S 1-6
   17 POTAMOGETON PUSILLUS L. 1-6
   16 POTAMOGETON LUCENS L.   1-6
   15 POTAMOGETON CRISPUS L.  2-6
   14 LEMNA MINOR L.          3-6
   13 POTAMOGETON PECTINATUS  4-6
   13 ZANNICHELLIA PALUSTRIS  1-6
   13 AZOLLA FILICULOIDES LAM 1-6
   12 SPARGANIUM SIMPLEX HUDS 3-6
    8 HELODEA CANADENSIS RICH 4-6
    6 POTAMOGETON DENSUS L.   3-6
    6 POTAMOGETON PERFOLIATUS 1-6
    5 NASTURTIUM OFFICINALE R 1-6
    5 RANUNCULUS FLUITANS LAM 1-6

    4 RANUNCULUS CIRCINATUS S 3-6
    3 MYRIOPHYLLUM SPICATUM L 4-6
    3 NUPHAR LUTEUM SM.       4-6
    3 OENANTHE FLUVIATILIS CO 1-4
    3 LEMNA GIBBA L.          1-6
    3 LEMNA TRISULCA L.       4-6
    3 SPIRODELA POLYRRHIZA (L 3-6
    3 POTAMOGETON FLUITANS RO 1-6
    3 POTAMOGETON LUCENS L.   4-6
    2 CERATOPHYLLUM DEMERSUM  4-6
    2 HIPPURIS VULGARIS L.    1-6
    2 SAGITTARIA SAGITTIFOLIA 1-6
    2 POTAMOGETON CRISPUS L.  3-6
    2 POTAMOGETON MUCRONATUS  3-5
    2 POTAMOGETON NATANS L.   1-6

    2 POTAMOGETON PERFOLIATUS 3-6
    2 POTAMOGETON TRICHOIDES  1-6
    2 AZOLLA FILICULOIDES LAM 3-6
    1 RANUNCULUS FLUITANS LAM 3-6
    1 RANUNCULUS TRICHOPHYLLU 1-6
    1 VERONICA ANAGALLIS L.   1-5
    1 VERONICA BECCABUNGA L.  1-6
    1 OENANTHE FLUVIATILIS CO 3-4
    1 BUTOMUS UMBELLATUS L.   1-6
    1 POTAMOGETON ACUTIFOLIUS 1-6
    1 POTAMOGETON FLUITANS RO 4-6
    1 POTAMOGETON PUSILLUS L. 3-6
    1 SPARGANIUM RAMOSUM CURT 1-6
    1 ZANN PALU VAR. PALUSTRI 1-6