Abstract:
The purpose of this paper is to underline some ecophysiological characteristics of some herbaceous species specific to
the forest Codrii Pascanilor in pedoclimatic conditions. Ten species belonging to seven botanic families were taken into
account (Ranunculaceae, Lamiaceae, Campanulaceae, Asteraceae, Violaceae, Scrophulariaceae, Orchidaceae We
analysed the following physiological parameters: the content of water and dry substance, the concentration of the
cellular juice and the content of chlorophylls pigments. The species analysed present a high water contents in leaves and
flowers: 81.06 g % - 88.24 g % at vernal species and 85.65 g % - 92.2 g % at summer ones; exception are the species
Viola reichenbanchiana and Veronica chamaedrys, which have the water content in leaves below 80 %. The
concentration of the cellular juice in leaves and flowers present moderate-low values (5,2 % saccharose - 14,8 %
saccharose ). The content of chlorophylls pigments presents moderate/high values, except for the species Plathantera
bifolia. The ratio chlorophyll a/ b has values comprised between 2.55 and 3.36, which indicates an own rhythm of
biosynthesis of the two types of chlorophylls in each species.
