Guatteria scandens Ducke (1925: 10) (Annonaceae)

Leal, Eduardo Da Silva, Costa, Denise Pinheiro Da & Forzza, Rafaela Campostrini, 2010, Lectotypification of the taxa of Adolpho Ducke from the Brazilian Amazon, Phytotaxa 13, pp. 49-55 : 52

Guatteria scandens Ducke (1925: 10) (Annonaceae) .

Lectotype (designated here):—BRAZIL. Pará: Breves, Macujubinzinho, 28 September 1919, A. Ducke HJBR 11379 (RB 2 sheets; photo F). Syntype: A. Ducke HJBR 17874 (MO, RB, S).

Fries (1939: 483) indicated the specimen A. Ducke HJBR 17874 as “Typus speciei” of G. scandens. However, the sheet with this number comprises two specimens with distinct dates (10 November 1922, fruit black, and 10 May 1923, flower green). However this cannot be treated as a single specimen, as its parts were collected at different times (Art. 8.2 of the ICNB, McNeill et al. 2006); consequently Fries’s statement does not constitute an effective lectotypification, even as a first stage lectotypification. We have selected as lectotype the other specimen cited in the protologue by Ducke (1925).