Primary Xylem Collection

Lime tree stem, light micrograph
Lime tree stem. Light micrograph of a section through the stem of a lime tree (Tilia europaea). The outer epidermis has been shed and replaced by a layer of cork (dark red)

Pine root, light micrograph
Pine root. Light micrograph of a section through the root of a pine (Pinus sp.) tree. From outer to inwards: outer layer of peridium (dark red); cortex - made up of parenchyma cells (red)

Oak root, light micrograph
Oak root. Light micrograph of a section through a secondary root from an oak (Quercus sp.) tree. The primary cortex (outer layer) has been shed by the formation of a circular meristem, the periderm

Plant root development, artwork
Plant root development. Artwork showing the first three stages in the development of a plant root. The first of these three stages (upper left)

Plant root development, diagram
Plant root development. Diagram showing the the fourth (left) and fifth (right) stages in a series showing the development of a plant root

All Professionally Made to Order for Quick Shipping