19 CALLITRICHE OBTUSANGULA 1-6
   18 PHALARIS ARUNDINACEA L. 1-6
   12 CALLITRICHE OBTUSANGULA 3-6
   12 SIUM ERECTUM HUDSON     1-6
   11 LEMNA MINOR L.          1-6
   10 VERONICA ANAGALLIS L.   1-5
    8 NASTURTIUM OFFICINALE R 1-6
    8 SIUM ERECTUM HUDSON     4-6
    8 HELODEA CANADENSIS RICH 1-6
    8 LEMNA TRISULCA L.       1-6
    6 MENTHA AQUATICA L.      1-6
    6 SPARGANIUM SIMPLEX HUDS 1-6
    5 CALLITRICHE STAGNALIS S 1-6
    5 NUPHAR LUTEUM SM.       1-6
    5 VERONICA ANAGALLIS L.   2-5

    4 APIUM NODIFLORUM (L.) L 1-6
    4 LEMNA MINOR L.          3-6
    3 CALLITRICHE HAMULATA KU 1-6
    3 HELODEA CANADENSIS RICH 4-6
    2 MYRIOPHYLLUM VERTICILLA 1-6
    2 NUPHAR LUTEUM SM.       4-6
    2 RANUNCULUS FLUITANS LAM 1-6
    2 VERONICA BECCABUNGA L.  1-6
    2 SOLANUM DULCAMARA L.    1-5
    2 APIU NODI SUBS NODIFLOR 1-6
    2 LEMNA TRISULCA L.       4-6
    2 POTAMOGETON COLORATUS V 1-6
    2 POTAMOGETON PECTINATUS  1-6
    2 POTAMOGETON PUSILLUS L. 1-6
    1 CALLITRICHE HAMULATA KU 3-6

    1 CALLITRICHE STAGNALIS S 3-6
    1 CERATOPHYLLUM DEMERSUM  1-6
    1 NASTURTIUM OFFICINALE R 3-6
    1 MYRIOPHYLLUM SPICATUM L 1-6
    1 MENTHA AQUATICA L.      3-6
    1 RANUNCULUS AQUATILIS L. 1-6
    1 RANUNCULUS FLUITANS LAM 3-6
    1 RANUNCULUS TRICHOPHYLLU 3-6
    1 RANUNCULUS TRICHOPHYLLU 1-6
    1 RANU TRIC VAR. TRICHOPH 1-6
    1 ALISMA PLANTAGO L.      1-6
    1 BUTOMUS UMBELLATUS L.   1-6
    1 ARUNDO PHRAGMITES L.    1-6
    1 GLYCERIA ALTISSIMA (MOE 1-6
    1 GLYCERIA FLUITANS (L.)  1-6

    1 PHALARIS ARUNDINACEA L. 3-6
    1 IRIS PSEUDACORUS L.     1-6
    1 LEMNA GIBBA L.          4-6
    1 LEMNA GIBBA L.          1-6
    1 SPIRODELA POLYRRHIZA (L 1-6
    1 POTAMOGETON CRISPUS L.  1-6
    1 POTAMOGETON DENSUS L.   1-6
    1 POTAMOGETON MUCRONATUS  3-5
    1 POTAMOGETON MUCRONATUS  1-5
    1 SPARGANIUM RAMOSUM CURT 1-6
    1 SPARGANIUM SIMPLEX HUDS 3-6
    1 ZANNICHELLIA PALUSTRIS  1-6
    1 AZOLLA FILICULOIDES LAM 1-6