Marisia - Maros Megyei Múzeum Évkönyve 36/1. (2016)

Botany

Andreea Natalia MATEI

from the past decades. This fact proves that polyploid species are easily adaptable holding a high phytocenology capacity for competing. Both diploids and diplo-polyploids elements provide the plants genetic found, being necessary for the future plant evolution. The diploid index determined after Cristea et al. (2004), is almost unitary, reflecting the instability of plant formations from this areas, fully reflecting the stationary conditions of the studied plant formation.

Fig. 5: Caryological structure analysis of Cirsio waldsteinii-Heracleetum transsilvanici Pawl, et Walas 1949, Zänoagei Gorges, Scropoasa, Seven Springs Waterfall — Dámbovita county, (Romania)

Analysis of ecological categories

The Ellenberg indices analysis for the Cirsio waldsteinii-Heracleetum transsilvanici Pawl, et Walas 1949 plant association, was made considering the following indicators: light (L), temperature (T), humidity (U), soil reaction (R) and the availability of nutrients such as mineral nitrogen (N).

According to the light factor, it can be observed the presence of light tolerant species, which can bearly resist in shade (L = 24.5%), followed by the species that prefers relative shade or semi-shade areas (L4 = 20%). (Fig. 6).

Fig. 6: Ecological Ellenberg indexes of flora of Cirsio waldsteinii-Heracleetum transsilvanici Pawl, et Walas 1949, Zänoagei Gorges, Scropoasa, Seven Springs Waterfall — Dámbovita county, (Romania)

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