Carex brehmeri Boeckeler, Allg. Bot. Z. Syst.

Jiménez-Mejías, Pedro, Alegría-Olivera, J. José, Beltrán, Hamilton W., Cano, Asunción, Granda-Paucar, Arturo, Maldonado Fonkén, Mónica S., Riva-Regalado, Sebastián, Ruthsatz, Barbara & Escudero, Marcial, 2020, Chorological and nomenclatural notes on Peruvian Carex (Cyperaceae), Caldasia 42 (1), pp. 63-69 : 64-65

Carex brehmeri Boeckeler, Allg. Bot. Z. Syst. 2: 190. 1896.

Lectotype (designated by Jiménez-Mejías et al. 2016a): BOLIVIA. Larecaja, vicinis Sorata, Cochipata , 3200 m, Dec 1884, G. Mandon 1427 ( NY barcode 00011459 !; isolectotypes: MICH barcode 1109115 !, NY barcode 00011460 !).

Material studied. PERU. Cajamarca: Cajamarca, Quebrada Pampa Larga, al Norte de las Minas Yanacocha , 4950 m, 5 Mar 1994, I. Sánchez & M. Cabanillas 6829 ( CPUN-12486 ) .

Notes: Specimens cited here, belonging to section Phacocystis , are dwarf sedges with stems much shorter than the leaves. Carex sect. Phacocystis was previously unrecorded from Peru and has a quite confusing taxonomy in South America that has often led to wrong taxonomic determinations and misapplication of names, e.g. see the cases of C. azuayae Steyerm. and C. enneastachya C.B. Clarke in Wheeler (1998), and C. decidua Boott and C. brehmeri in Dragon and Barrington (2009). While more biosystematic data is available, we consider that the application of the name C. brehmeri to these dwarf plants is the best possible solution (see also the record of C. brehmeri in Jiménez-Mejías et al. 2016a).

There is a discrepancy between the altitude indicated in the protologue (“3100”) by Boeckeler (1896) and that provided on the type collection labels (“3200”). Beyond that, the specimens selected as types are certainly original materials of C. brehmeri .