Names of Potamogeton (Potamogetonaceae) proposed by Bohemian botanists in the period 1819-1902

Names of taxa of the genus Potamogeton proposed by Bohemian authors are discussed and typified. 74 names are listed, proposed by L. Čelakovský, F. X. Fieber, P. M. Opiz, J. S. Presl, K. B. Presl (= C. B. Presl), J. Rohlena, F. J. Ruprecht, D. Sloboda and I. F. Tausch. Three names and their types are of importance for contemporary plant taxonomy: P. berchtoldii Fieber, P. ×angustifolius J. S. Presl [= P. gramineus L.× P. lucens L.] and P. friesii Rupr. The study has also proved the justification of the use of these names. The correct name for the species known as P. malaianus [auct.] or P. mucronatus C. B. Presl is P. wrightii Morong. In order to preserve nomenclatural stability, a justification for the conservation of the name P. maackianus A. Benn. against P. serrulatus Regel et Maack is given.