Question

What is velamen tissue

Answer 1

The velamen also serves a mechanical function, protecting the vascular tissues in the root cortex, shielding the root from transpirational water loss, and, in many cases, adhering the plant to the substrate. The typical orchid root has a stele of comparatively small diameter.

Answer 2

…a multiple-layered epidermis called avelamen, which consists of nonliving compact cells with lignified strips of secondary walls. These cells provide support, prevent water loss, and assist the plant in absorbing water.