J. Spilková; H. Hejlová
Katedra farmakognozie Farmaceutické fakulty Univerzity Karlovy, Hradec Králové
Čes. slov. Farm., 1999; , 231-232
Stomatal index (S. I.) was examined in the birch leaves from Betula pendula ROTH and B. pubescensEHRH. collected during vegetation in different localities. Its value lies within 3.30 ± 1.31 – 7.33 ±3.13 in Betula pendula ROTH and 3.66 ± 1.34 – 12.06 ± 3.26 in the species Betula pubescens EHRH.With greater or lesser significance, the S.I. value is dependent on the age of the leaf, mother plantand locality.
Key words: stomatal index – quantitative microscopy – Betulae folium
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