15 POLYGONUM HYDROPIPER L. 1-6
   14 CALLITRICHE OBTUSANGULA 1-6
   13 LEMNA MINOR L.          1-6
   11 SPARGANIUM SIMPLEX HUDS 1-6
    9 RANUNCULUS FLUITANS LAM 1-6
    8 SPIRODELA POLYRRHIZA (L 1-6
    8 POTAMOGETON FLUITANS RO 1-6
    6 RANUNCULUS FLUITANS LAM 3-6
    6 LEMNA MINOR L.          3-6
    5 RORIPA AMPHIBIA (L.) BE 1-6
    5 NUPHAR LUTEUM SM.       1-6
    4 CALLITRICHE OBTUSANGULA 3-6

    4 POLYGONUM HYDROPIPER L. 3-6
    3 CERATOPHYLLUM DEMERSUM  1-6
    3 MYRIOPHYLLUM SPICATUM L 1-6
    3 SIUM ERECTUM HUDSON     1-6
    3 HELODEA CANADENSIS RICH 1-6
    3 SPARGANIUM SIMPLEX HUDS 3-6
    3 TYPHA LATIFOLIA L.      1-6
    2 NUPHAR LUTEUM SM.       4-6
    2 ALISMA PLANTAGO L.      1-6
    2 SAGITTARIA SAGITTIFOLIA 1-6
    2 BUTOMUS UMBELLATUS L.   1-6
    2 PHALARIS ARUNDINACEA L. 1-6

    2 POTAMOGETON CRISPUS L.  1-6
    2 POTAMOGETON MUCRONATUS  1-5
    1 CALLITRICHE HAMULATA KU 1-6
    1 NASTURTIUM OFFICINALE R 1-6
    1 LYTHRUM SALICARIA L.    1-6
    1 POLYGONUM LAPATHIFOLIUM 1-6
    1 RANUNCULUS CIRCINATUS S 1-6
    1 RANUNCULUS FLUITANS LAM 4-6
    1 VERONICA BECCABUNGA L.  1-6
    1 APIUM INUNDATUM L.      1-6
    1 SAGITTARIA SAGITTIFOLIA 3-6
    1 ACORUS CALAMUS L.       5-6

    1 ACORUS CALAMUS L.       1-6
    1 BUTOMUS UMBELLATUS L.   3-6
    1 ARUNDO PHRAGMITES L.    1-6
    1 GLYCERIA ALTISSIMA (MOE 1-6
    1 LEMNA GIBBA L.          1-6
    1 LEMNA TRISULCA L.       4-6
    1 LEMNA TRISULCA L.       1-6
    1 SPIRODELA POLYRRHIZA (L 3-6
    1 POTAMOGETON COMPRESSUS  1-3
    1 POTAMOGETON FLUITANS RO 4-6
    1 POTAMOGETON PECTINATUS  1-6
    1 POTAMOGETON RUFESCENS S 1-6