Ežiuolės (Echinacea Moench.) genties rūšių vegetatyvinių organų sandaros lyginamoji analizė

Abstract

Anatomical characteristic of Echinacea Moench. genus species is presented in this work. Then are reseached there species of Echinacea Moench.: E. purpurea, E. palaida and E. angustifolia. The description and comparison of overgraund stems, leaves, rhizomes and roots anatomių structure of there species are presented in this work, also diagnostic characters and quantative characteristic are specified. After anglysis of anatomical structure of Echinacea Moench axial organs it was established heterobatmia. By anatomical characters comparison exodermis structure in the stems is of great diagnostic `importance. Exodermis lamellosity is constant character. In the stem of E. angustifolia it is mode by 1–3 series of angular collenchyma, E. purpurea – 2��3 series and E. palaida – 3 series. The number of auxiliary cells of stomatal aparatus and their situation are of great diagnostic importance in the leaves. E. purpurea leaf has anomacitical stomatal aparatus type. The means, stomatal guard cells are surrounded by from 2 to 6 auxilaliary celle, which doesn't differ from epidermis cells. E. palaida leaft has anisocitical atomatal aparatus type. The stomatal guard cells of this are surrounded then other. E. angustifolia has diacritical stomatal aparatus type. The stomatal guard cells are surrounded by auxiliary cells and the juncture of auxiliary cells is perpendicular ti stomatal guard cells. Striking differences are characteristic to the structure and situation of secretory tissue in the anglysis of anatomical structure of Echinacea Moench rhizomes. All analyzed plants have schizogenic glands. Epitelium cells lamellosity and inner canal cavity in the schizogenic glanda are different in the different species of plants. One Echinacea Moench. is different from another in lamelloity of suber tissue in the root. In E. purpurea root it is mode by 1 layer of suber tissue, in E. angustifolia – 2–3 layers and E. palaida – 3 layers. The tables of species description are presented in this work.