| Home | E-mail | Cactuspedia | Mail Sale Catalogue | Links | Information | Search  |

Vascular bundle [ Botany]
Also called: Fibrovascular bundle

Dictionary of botanic terminology - index of names

  A vascular bundle is a compact strand of primary  vascular  plant  tissue consisting essentially of xylem and phloem and surrounding tissues, occurring in stem, leaf and flower.  
In Cactaceae a clear ring of vascular tissue is on a cross section cut across the stem. This woody material also has a structural function and forms the supporting skeletons of many cacti.

Left: Cylindropuntia timber (lignified vascular bundles)
Cross section of a stem of Astrophytum myriostigma
The whitish ring in the centre are vascular bundles.
Stele of Echinocactus grusonii whit cortical vascular bundles branching off from stele vascular bundles







| Home | E-mail | Cactuspedia | Mail Sale Catalogue | Links | Information | Search  |