Three new Carex nothospecies (Cyperaceae) discovered in the Czech Republic

Abstract

The article presents three newly discovered interspecific hybrids of sedges found in the Czech Republic. The finds of two of them (Carex xhelenae and C. xploegii) are the result of authors' field work and subsequent revision of specimens in large institutional Czech herbaria, while the third, C. xalluvialis, was documented by a herbarium specimen in the BRNU herbarium, collected in 1998. The finds of these wetland hybrid sedges are a supplement to the treatment of the genus Carex for the Flora of the Czech Republic, Vol. 9. For each of the hybrids, a detailed morphological description compiled on the basis of Czech plants is given and the location of the voucher specimens is mentioned.