... Potamogeton spp . The bottom value in each column represents the total number for that continent . Continent Europe ... berchtoldii , Potamogeton trichoides and Potamogeton wrightii were reported for the first time in the Kashmir ...
... Potamogeton berchtoldii ( tentative - - - ) 0 W F 5 0 P H Potamogeton trichoides ( tentative --- ) it has been recorded for all the Late Weichselian and Flandrian zones . As with so many aquatics there has been strong local persistence ...
... Potamogeton perfoliatus IV ( 1-8 ) IV ( 1-10 ) IV ( 1-10 ) Potamogeton gramineus IV ( 1-10 ) IV ( 1-10 ) IV ( 1-10 ) Potamogeton berchtoldii IV ( 1-10 ) II ( 1-8 ) III ( 1-10 ) Nitella spp . IV ( 1-10 ) I ( 1-6 ) III ( 1–10 ) Elodea ...
... Potamogeton perfoliatus IV ( 1-8 ) IV ( 1-10 ) IV ( 1-10 ) Potamogeton gramineus IV ( 1-10 ) IV ( 1-10 ) IV ( 1-10 ) Potamogeton berchtoldii IV ( 1-10 ) II ( 1-8 ) III ( 1-10 ) Nitella spp . IV ( 1-10 ) I ( 1-6 ) III ( 1–10 ) Elodea ...