Pachira duckei (A. Robyns) Fern. Alonso, Anales Jard. Bot. Madrid 56: 310. 1998.

Carvalho-Sobrinho, Jefferson, Yoshikawa, Vania Nobuko & Dorr, Laurence J., 2021, Notes on Brazilian Pachira (Malvaceae, Bombacoideae) II: Additional typifications and new synonymies, PhytoKeys 186, pp. 53-72 : 53

Pachira duckei (A. Robyns) Fern. Alonso, Anales Jard. Bot. Madrid 56: 310. 1998.

Fig. 2B

Rhodognaphalopsis duckei A. Robyns, Bull. Jard. Bot. État Bruxelles 33: 275, fig. 14. 1963.

Rhodognaphalopsis duckei var. obtusifolia A. Robyns, Bull. Jard. Bot. État Bruxelles 33: 278. 1963, syn. nov. Type: Brazil. Amazonas, Marmellos, Rio Madeira, Mar 1902 (lf, fl), E. Ule 6077 (holotype: G barcode 00177546; isotypes: K barcode 000382340, L barcode 0012900, RB barcode 00534490, RB barcode 00534520).

Type.

Brazil. Amazonas, Manaus, Igarape da Raiz , 30 Aug 1946 (lf, fl), A. Ducke 310 (IIa. col.) (holotype: MG barcode 018577 [= MG n.° 18.577]; isotypes: IAC 13840 , IAN, SP barcode SP 003366 ) .

Note.

When Robyns (1963) described Rhodognaphalopsis duckei and R. d. var. obtusifolia he had very little material available. In fact, he cited fewer than a dozen collections for both taxa. The characters that he used to distinguish var. Rhodognaphalopsis duckei obtusifolia from the nominate variety were subtle and overlap with specimens he cited as paratypes of the latter. We cannot distinguish the obtuse leaflet bases of Ducke s.n. [RB 23484] (see e.g., K barcode 000913930), a paratype of R. duckei , from those of Ule 6077 (see e.g., K barcode 000382340), the type of R. d. var. obtusifolia . For this reason and because the two taxa lack discrete ranges, we propose these names should be treated as synonyms.

Figures

Figure 2. Pachira species A P. aquatica fruit B P. duckei fruit C P. endecaphylla leaves and flower D P. glabra leaves and flower E P. retusa habit F P. retusa leaves and fruit. Photographs A, D J. G. Carvalho-Sobrinho B C. E. Zartman C B. A. S. Pereira E M. C. Machado F L. P. Queiroz.