The botanical legacy of Martinus Houttuyn (1720 - 1798) in Geneva Author Wijnands, Dirk Onno Author Heniger, Johannes Author Veldkamp, Jan Frederik Author Fumeaux, Nicolas Author Callmander, Martin W. text Candollea 2017 2017-05-12 72 1 155 198 journal article 20627 10.15553/c2017v721a11 ae864518-b1d7-49da-85dc-905b1a4e6809 2235-3658 5721887 99. Rumex umbellatus Houtt., Nat. Hist. II(8): Aanwyz. Plaat. [2], 414, tab. 47, fig. 3. 1777. Lectotypus (designated here by Veldkamp): JAPAN : Thunberg s.n. ( G-PREL [ G00818078 ]!). = Persicaria chinensis (L.) H. Gross in Bot. Jahrb. Syst. 49: 269. 1913 . Notes . – Original material is in the Japan herbarium in G-PREL. The only collection there is a good match for the plate and is therefore designated here as the lectotype . No duplicate has been found in UPS-THUNB.