Биологическое разнообразие водохранилищ Верхней Волги, страница 10

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P. x cognatus Aschers. et Graebn.(P. perfoliatus x praelongus) 

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P. x cooperi (Fryer) Fryer (P. perfoliatus x crispus)

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P. x decipiens Nolte (P. lucens x perfoliatus)

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P. x falcatus Fryer (P. graminifolius x perfoliatus)

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P. x fluitans Roth (P. lucens x natans)

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P. x griffithii A. Benn (P. alpinus x praelongus)

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P. x involutus (Fryer) H. et J. Groves (P. coriaceus x perfoliatus) 

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P. x lanceolatifolius (Tiselius) C.D. Preston (P. gramineus x polygonifolius)

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P. x meinshausenii Juz. (P. filiformis x vaginatus) 

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P. x nerviger Wolfg. (P. alpinus x lucens)

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P. x nitens Web. (P. heterophyllus x perfoliattus)

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P. x olivaceus Baagöe (P. alpinus x crispus)

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P. x prussicus Hagstr. (P. alpinus x perfoliatus)

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P. x pseudofriesii Dandy et Taylor (P. acutifolius x friesii)

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P. pusillus x berchtoldii

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P. x serrulatus Schrad. ex Opiz (P. crispus x gramineus)

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P. x sparganiifolius Laest. ex Beurl. (P. gramineus x natans)

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P. x torssanderii (Tiselius) Hagstr. 

(P. heterophyllus x lucens x perfoliatus)

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P. x undulatus Wolfg. (P. crispus x praelongus)

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P. x vilnensis Galinis (P. gramineus x praelongus)

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P. x zizii Mert. et Koch (P. gramineus x lucens)

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С. acuta x aquatilis

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C. x bogstadensis Kük. (C. rhynchophysa x vesicaria)

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С. x elytroides Fries (C. acuta x nigra)

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C. x friesii Blytt. (C. rhynchophysa x rostrata)

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C. x pannewitziana Figert. (C. rostrata x vesicaria)

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