Abstract

The stoloniferous clonal herb Glechoma hederacea (Labiatae) has a decussate phyllotaxy. Each node bears two leaves which emerge from the opposite faces of a quadrangular stolon. Anatomical studies showed that the vascular tissue of the stolon is concentrated into four major bundles, and leaf traces connect each leaf of a ramet to the proximal pair of vascular bundles. These two vascular bundles also provide the vascularization for the secondary stolon developing from the axial of that leaf. Transport of resources in the vascular system was analysed using acid fuchsion dye and 14 C-labelled photoassimilate. All transport of dye in the xylem was acropetal (...)

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