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 55. Ipomoea pilosa Houtt., Nat. Hist. II(7): Aanwyz. Plaat. [2], 573, tab. 42, fig. 2. 1777. Lectotypus (designated here by Veldkamp): INDONESIA . Java : Radermacher s.n. [?] ( G-PREL [ G00818052 ]!). = Merremia umbellata (L.) Hallier . f. in Bot. Jahrb. Syst. 16: 552. 1893. Notes . – The single specimen of original material in the Java herbarium in G-PREL is designated here as the lectotype . It was sent to Houttuyn by either Radermacher or Thunberg. No specimen is present in UPS-THUNB, where Hallier f. identified the material of Convolvulaceae .