Peculiar Features of Epiphytes:
1. Aerial Habitat:
- Epiphytes live on the branches or trunks of other plants but are not parasitic on them.
- They do not draw nutrients from the host plant but utilize atmospheric resources.
2. Diverse Adaptations:
- Epiphytes have evolved a wide range of adaptations to survive in their unique environment.
- Some develop specialized water-storage structures (e.g., tank bromeliads) or have thick, waxy leaves to prevent water loss.
3. Roots for Anchorage:
- While not parasitic, epiphytes have roots that serve primarily for anchorage.
- These roots may be clinging, grasping, or produce root hairs for attachment.
4. Nutrition from Atmosphere:
- Epiphytes absorb nutrients from the atmosphere, rain, and decaying organic matter that accumulate on their host branches.
- Some species have specialized structures, such as trichomes or leaf scales, that enhance nutrient absorption.
5. Nutrient Cycling:
- Epiphytes contribute to nutrient cycling in forest ecosystems.
- They capture nutrients from the atmosphere and rainwater, which would otherwise be lost from the system.
- As they decompose, they release these nutrients back into the soil.
6. Vascular Tissue:
- Epiphytes are vascular plants, possessing xylem and phloem for water and nutrient transport.
- This allows them to efficiently move resources throughout the plant.
7. Water Conservation:
- Epiphytes have mechanisms to conserve water, such as thick, waxy cuticles, reduced leaf area, and specialized water-storage organs.
- Some species can survive drought conditions by entering dormancy or shedding leaves.
8. Light Tolerance:
- Epiphytes can tolerate a range of light conditions, from full sun to deep shade.
- Their ability to adjust to changing light levels allows them to thrive in different forest strata.
9. Ecological Interactions:
- Epiphytes provide habitat for a variety of organisms, including insects, amphibians, and reptiles.
- Their presence can influence nutrient cycling, light availability, and canopy microclimate.
10. Diversity and Distribution:
- Epiphytes are a diverse group of plants, with over 30,000 known species.
- They are found in tropical and temperate forests worldwide, with the greatest diversity occurring in the Neotropics.