Additions to the flora of the Czech Republic. XIV.

This fourteenth part of floristic contributions includes newly published data of critically endangered species and data unpublished so far. The species newly discovered on the territory of the Czech Republic Carex depressa subsp. transsilvanica and data of alien species found in the Czech Republic for the fi rst time (Acacia farnesiana, Arundo donax, Centaurea bruguiereana subsp. belangeriana, Centaurea carniolica, Centaurea stoebe subsp. australis, Centaurea transalpina, Centaurea weldeniana, Cleome hassleriana, Dicentra formosa, Eriochloa villosa, Ipomea lacunosa, Linaria pelisseriana, Lysimachia ciliata, Muscari latifolium, Panicum gattingeri, Persicaria capitata, Polanisia uniglandulosa, Tordylium apulum, Urochloa platyphylla) are summarized. The newly found Hieracium acrothyrsum, H. polymastix, Montia arvensis, Osmunda regalis and Salvia austriaca, previously considered to be missing or extinct in the Czech Republic territory, are listed below. Furthermore, criticaly endangered species (according to the Red List of Vascular Plants of the Czech Republic) are reported from new sites (e. g. Botrychium multifidum, Carex dioica, Cyperus michellianus, Danthonia alpina, Danthonia × breviaristata, Goodyera repens, Illecebrum verticillatum, Lappula semicincta, Lindernia procumbens, Malaxis monophyllos, Pilularia globulifera, Salix myrtilloides, Samolus valerandi).