Question

What is a velamen? SHOOT/STEM STRUCTURE AND FUNCTION

   What is a velamen?
SHOOT/STEM STRUCTURE AND FUNCTION

Plant Systematics

Plant Systematics

Michael G. Simpson 2nd Edition

Chapter 10, Problem 31

Instant Answer

Solved by Expert Khalida Dawar

02/22/2022

Step 1

It is a spongy, water-absorbing layer that surrounds the roots of these plants. The velamen helps the plant to absorb and retain moisture from the air and rainwater, as these plants typically grow in environments where the soil is limited or absent. The velamen Show more…

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What is a velamen? SHOOT/STEM STRUCTURE AND FUNCTION

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Key Concepts

Velamen

The velamen is a specialized, multi-layered epidermal tissue found on the roots of many epiphytic plants. It functions to quickly absorb water and nutrients from the environment, protect the underlying tissues from desiccation, and reduce damage from ultraviolet radiation and mechanical stress.

Water Absorption Mechanism

This concept refers to the various structural adaptations in plants that enhance the efficiency of water uptake. The velamen is one such adaptation, increasing the surface area available for absorption and helping plants thrive in environments where water availability is intermittent.

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