FRQ
   34 TRAPA NATANS L.         1-6
   24 TRAPA NATANS L.         4-6
   19 POTAMOGETON TRICHOIDES  1-6
   18 POTAMOGETON TRICHOIDES  4-6
   18 UTRICULARIA MAJOR SCHMI 1-6

   16 NYMPHAEA ALBA L.        1-6
   11 NYMPHAEA ALBA L.        5-6
    7 UTRICULARIA MAJOR SCHMI 3-6
    5 NYMPHOIDES PELTATA (GME 1-6
    3 NAIAS MINOR ALL.        1-6

    2 POTAMOGETON LUCENS L.   1-6
    2 NYMPHOIDES PELTATA (GME 5-6
    1 POTAMOGETON ACUTIFOLIUS 1-6
    1 NAIAS MAJOR ALL.        1-6
    1 NYMP ALBA VAR. ALBA     1-6

    1 NUPHAR LUTEUM SM.       1-6
    1 CERATOPHYLLUM SUBMERSUM 1-6
    1 CERATOPHYLLUM DEMERSUM  1-6