Luehea microphylla Pohl (1833: 129)

Gerace, Samuele, Bovini, Massimo G., Peruzzi, Lorenzo & Baumgratz, José Fernando A., 2022, Typification of names in the neotropical genus Luehea (Malvaceae: Grewioideae), Phytotaxa 542 (2), pp. 180-188 : 183-184

Luehea microphylla Pohl (1833: 129) .

Type:— BRAZIL. Minas Gerais: Minas Novas, “Habitat inter arbores ad margines fluviorum ad Rio S.Francisco , Capitanae Minas Novas. Legi florentem mense Octobri 1819”, Pohl s.n. (lectotype [as ‘holotype’], first-step designated by Cunha (1985: 10); second-step lectotype, designated here, W! [ W0071087 ]) . Minas Gerais: Minas Novas, Pohl s.n. (syntype remaining W! [ W0071386 ]). [= Luehea candicans Mart. ]

Pohl’s original collection is kept in W where he worked and lived ( Stafleu & Cowan 1976 –1988: 315), and where we found only two specimens reported by the author to the name L. microphylla and collected by him in Brazil (B. Wallnöfer, pers. comm.). These two specimens are syntypes of L. microphylla , and the previous typification of Cunha (1985) needs to be corrected ( Art. 9.2 of the ICN), since it represents the first-step lectotype of L. microphylla and now requires the second-step typification by the way of subsequent lectotypification (Art. 9.17 of the ICN). For this reason, we designated herein the specimen Pohl s.n. (W0071087) the second-step lectotype of L. microphylla , that agree well with the morphological description presented in the protologue. Based on the type materials, the application of the name L. microphylla Pohl is confirmed as a heterotypic synonym of L. candicans , as previously accepted by Cunha (1985).