Stem of a Dracaena. Light micrograph of a cross- section through the stem of a Dracaena (Darcaena terminalis) of the Agavaceae (Monocotyledons). It has secondary thickening in its stem to form a ring of vascular bundles from a circular meristematic layer (usually this group of plants have only scattered vascular bundles). The agavareae family is used as a source of fibres | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wheeler, Dr. Keith |
Bildgröße: | 2976 px × 2957 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |