0.36 AZOLLA FILICULOIDES LAM 3-6
 0.47 AZOLLA FILICULOIDES LAM 5-6
 0.49 LEMNA GIBBA L.          1-6
 0.51 SPIRODELA POLYRRHIZA (L 1-6
 0.56 LEMNA TRISULCA L.       1-6
 0.57 LEMNA MINOR L.          3-6
 0.57 LEMNA MINOR L.          1-6
   0.57 SALVINIA NATANS (L.) AL 1-6
 0.58 SPIRODELA POLYRRHIZA (L 3-6
 0.59 LEMNA TRISULCA L.       4-6
   0.61 WOLFFIA ARRHIZA (L.) WI 1-6
 0.61 HYDROCHARIS MORSUS-RANA 1-6
 0.62 HYDROCHARIS MORSUS-RANA 4-6
 0.66 CALLITRICHE OBTUSANGULA 1-6
 0.67 LEMNA GIBBA L.          5-6
 0.68 CALLITRICHE OBTUSANGULA 3-6
   0.68 SALVINIA NATANS (L.) AL 4-6
 0.69 CERATOPHYLLUM DEMERSUM  1-6
   0.70 WOLFFIA ARRHIZA (L.) WI 5-6
   0.70 RICCIOCARPUS NATANS (L.)  1
 0.70 HIPPURIS VULGARIS L.    1-6
 0.70 HELODEA CANADENSIS RICH 1-6
 0.70 HIPPURIS VULGARIS L.    3-6
 0.72 HOTTONIA PALUSTRIS L.   1-6
 0.72 UTRICULARIA VULGARIS L. 1-6
 0.72 UTRICULARIA VULGARIS L. 3-6
 0.73 HOTTONIA PALUSTRIS L.   3-6
 0.73 RANUNCULUS CIRCINATUS S 1-6
 0.73 POTAMOGETON PUSILLUS L. 1-6
 0.73 POTAMOGETON CRISPUS L.  1-6