Zwei neue zur Sektion Polymechana gehörende Minuartia-Arten (Caryophyllaceae)

Minuartia corcontica and M. perdita, two new species of the section Polymechana Mattf., are described. Brief comments on the distribution and chromosome counts are added. Minuartia corcontica is a species endemic to the Krkonoše Mts (in the Czech Republic). Nowadays it occurs only on the eastern slopes of the Studniční hora Mt. (in two ravines: Čertova zahrádka and Čertova rokle). Minuartia perdita is endemic to the mountains on the northern coast of the Lake Ladoga in Russian Karelia. A taxonomic reclassification (elevation of a variety to the species level) is proposed in the appendix of this paper for a species of Minuartia.