Begonia micranthera Grisebach (1874: 148)

Martín, Claudia M., Ospina, Juan C. & Zanotti, Christian A., 2017, Nomenclature issues into southern of South American species of Begonia (Begoniaceae), Phytotaxa 314 (1), pp. 129-134 : 132

Begonia micranthera Grisebach (1874: 148) .

Type:— ARGENTINA. ‘ Tucumán. Siambon’, March 1872, P.G. Lorentz 281 (lectotype GOET 000317! designated here).

Taxonomic notes:—In the protologue of B. micranthera, Grisebach (1874) cited “Tucumán in silvis umbrosis reg. Subtropic. Pr. Siambon”. This author did not indicate any specimen for this taxon, but the plants described in this work were collected by P.G. Lorentz between 1871 and 1872 (see, Grisebach 1874: 49). Three collections corresponding to the type locality were found [G.H.E.W. Hieronymus & P.G. Lorentz 901 (B 10 0186655! and a photo of Field Museum F0 BN 020864!); P.G. Lorentz & G.H.E.W. Hieronymus 1051 (NY 00118631!, US 00115391!); P.G. Lorentz 281 ( GOET 000317!)]. We consider that these collections correspond to the original material studied by Grisebach in 1874, and therefore can be considered syntypes (Art. 9.5, ICN 2012). For these reason, we chose the specimen GOET 000317! as a lectotype of B. micranthera , because it corresponds to the description and locality included in the protologues, as well as the date specified in the introduction by Grisebach (1874: 49). Finally, this collection is housed in GOET that was Grisebach’s workplace ( Stafleu & Cowan 1979).