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              Representative specimen 
          
             Section of Central and East Asia 
          
             Dioscorea opposita Thunb.    
          
          
             Plantae Coreaneae, habitat Quelpaert sepibus Hongno, 01.IX.1908, legi T.Taquet, No 1620 
          
          
          
          
             Taquet T. 
          
          
          
          
             01.IX.1908 
          
          
          
             Korea [Asia] 
          
          
          
          
             The herbarium sheet has the printed title "Hortus Botanicus Imperialis Petropolitanus." and the State Emblem of the Russian Empire. 
          
          
          
             Raenko L.M., 2004 
          
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