About of cleistogamy in Lamium amplexicaule L. in Perm krai (Lamiaceae)

The peculiarities of manifestations of cleistogamy the nettle amplexicaul in the Perm region. The prevalence cleistogamous flowering over hazmogamnye observed in years-her time is favorable for open flowering. Fertility of pollen in flowers of both morphological forms, and it is somewhat higher in hazmogamnye flowers. Seed production cleistogamic flowers very high-potential seed productivity is almost equal to the real seed productivity.