Chromosome numbers were determined for 97 samples of 95 sedge taxa (Carex) from the following countries: Austria (6 records), Bulgaria (1), the Canary Islands (Spain, 1), Cape Verde (1), the Czech Republic (51), Hungary (1), Italy (2), Norway (8), Russia (15), Slovakia (1), Sweden (1) and 9 North American plants cultivated in Czech botanical gardens. Chromosome numbers for Carex argunensis, C. callitrichos, C. campylorhina, C. flavocuspis subsp. krascheninnikovii, C. paniculata subsp. hansenii, C. pallida, C. quadriflora and C. xiphium are reported here for the first time. The first reports are presented for the European portion of the distribution area of Carex obtusata and for the Central European portion of the distributional areas of C. chordorrhiza, C. otrubae, C. rhizina and C. strigosa. New counts for the Czech Republic fill the gaps in the karyological data for this genus in relation to the Flora project in the Czech Republic.
Přestože jsou Kapverdy označovány jako ostrovy věčného léta, lze zde ve skutečnosti přejít z jednoho ročního období do druhého, a to buď na gradientu nadmořské výšky nebo při přechodu z návětrné strany na závětrnou. Klimatická rozmanitost tak spolu s rozdílnou velikostí ostrovů, nadmořskou výškou a osídlením určuje charakter a diverzitu místních biotopů. Flóra se vyznačuje relativní druhovou chudostí, dosti vysokým podílem endemitů a značným zastoupením nepůvodních druhů. and Although the Cape Verde Islands are called islands of never-ending summer, in fact it is possible to move from one season to another, either along the altitudinal gradient or by passing from the windward to the leeward side. The variability of climate together with differences in island areas, different altitude and vegetative coverage defines the character and diversity of local biotopes. Relative low species diversity and the high percentage of endemic species, as well as of alien species, are typical of the islands’ flora.