| 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 |