Pinguicula acuminata Benth. (1839: 71)

Domínguez, Yoannis, Valdés, Cristina Mercedes Panfet & Miranda, Vitor Fernandes Oliveira, 2017, Typification of names in the genus Pinguicula L. (Lentibulariaceae), Phytotaxa 312 (2), pp. 179-198 : 180

Pinguicula acuminata Benth. (1839: 71)

Protologue locality:—In umbrosis prope Chico. Type (neotype, designated here):— MEXICO. Hidalgo, Las Ventanas, municipio de El Chico, bosque de oyamel-encino, 3000 m, 23

March 1975, M. Medina C. 211 ( ENCB s.n. [digital photo!], isoneotype ASU No. 108704 barcode ASU0023885 [digital photo!];

Fig. 1 ).

Note:—In the work Plantas Hartwegianas, G. Bentham (1839) published a comprehensive list of C.T. Hartweg collections from Mexico with several new species including two new Pinguicula : P. heterophylla Bentham (1839: 70) and P. acuminata Benth. Hartweg’s specimens were originally housed at the herbarium of the Horticultural Society of London that was auctioned in 1856 and, according to the auction catalogue ( Stevens 1856), all Hartweg’s specimens were bought by Bentham, whose herbarium is now at Kew (K). On the other hand, according to Stafleu & Cowan (1979), sets of Hartweg’s plants were distributed to many herbaria. The species listed and described by Bentham were ordered according to the numbers attached to the specimens (e.g. 510 Pinguicula heterophylla ) but P. acuminata appears unnumbered. With the exception of P. heterophylla which is represented by Hartweg’s specimens in several collections (K, FI, G, L, LD and P), we could not trace any original material for P. acuminata , and therefore we have decided to designate a neotype according to Arts. 9.7, 9.11 and 9.13 of the ICN ( McNeill et al. 2012). Specimens of P. acuminata are few in the collections we have searched and just one gathering, represented by two specimens, fits the type locality. The sheets are housed at the herbarium of the National School of Biological Sciences, Mexico (ENCB) and the Arizona State University Vascular Plant Herbarium (ASU). The sheet at ENCB is more suitable as nomenclatural type since it bears several plants with flowers and a fruit, hence we have selected it as neotype and the ASU specimen is cited as isoneotype according to Rec. 9C of the ICN ( McNeill et al. 2012).

Figures

FIGURE 1. Neotype of Pinguicula acuminata Benth., at the Herbarium of the National School of Biological Sciences, Mexico (ENCB). Photography by courtesy of the herbarium ENCB; reproduced with permission.