Summary: | In the Czech Pharmacopoeia the drug Liquiritiae radix is defined as dried, unpeeled or peeled, whole or cut root and stolons of Glycyrrhiza glabra L. and/or Glycyrrhiza inflata BAT. and/or Glycyrrhiza uralensis FISH. The subject of this thesis was microscopic evaluation of roots and stolons G. glabra, G. pallidiflora, G.echinata and G. uralensis grown in the Czech Republic. Size of calcium oxalate crystals, vessels-wall, diameter width of vessels and number of medulary rays and amount of vessels were detected. By the comparision of the anatomical structure we can differentiate mainly G. pallidiflora. This thesis also summarises the information about different kinds of licorice, chemical compounds, pharmacological aktivity, further use and growing methods. Part of the thesis is photographic documentation of native preparation and pulverized drugs.
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