Particularitățile înmulțirii vegetative ale unor specii de Sempervivum L.

This article includes results of the research on the peculiarities of the vegetative propagation of five species of Sempervivum L., namely: Sempervivum arenarium W. D. J. Koeh.; S. arachnoideum L.; S. grandiflorum Haw.; S. montanum L. and S. tectorum L. The period during which the species begins to develop stolons has been determined. The data on the vegetative propagation coefficient, obtained and calculated statistically, are given below. S. arachnoideum has proven to be the most prolific species.