Elementary shoot of Silene jailensis (Caryophyllaceae) - the endemic plant of Mountain Crimea
Sympodial half-shrub Silene jailensis consists of monopodial perennial shoots with annual flower stalks. Elementary shoot of plant Silene jailensis is formed in a different way in the climate of South Coast of the Crimea in comparison with the same shoot in situ. The cause is the dependence of rhythm development of elementary shoot from the length of vegetation period. In the conditions of shorter vegetation period in situ the annual shoot consists of vegetative-generative part of previous elementary shoot. In the conditions of vegetation period ex situ the annual and elementary shoots coincide in the bounds of increment.