Tulenko M. Ephemeroid geophytes of Eastern Slovakia

Objects - Leucojum vernum L,L.aestivum L., Corydalis cava., C.Schweigg. et Korte, Crocus,others ephemeroid geophytes. The intention - inventarisation, analises ephemeroid geophytes of the Eastern Slovakia. Used standart methods of rout geobotanic investigations. Mapes of spreading presents of species made according to M. Jasicova, K.Zahradnikova (1976), J. Braun-Blanquet (1964). The main pecularities of bioecology of local populatios, age structure of the populations in different groving conditions have been stated. Ontogenesis and reproductive biology have been studied. The variability of morphometric features of vegetative and generative organs between and within the populatios was defined; morphological features significant for systematics was defined. The reasons of reduction in numbers of the populations have been found out, and measures on conservation of local endangered populations have been elucidaded. The studies are of interest for systemаtics, population biology and autsozology.