PHYLLODE Meaning and
Definition
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A phyllode is a modified leaf structure found in certain plants, particularly in the acacia family (Fabaceae) and other related species. It is characterized by a flattened, leaf-like structure that resembles a leaf but functions primarily as a photosynthetic organ.
A phyllode typically lacks a petiole or leaf stalk and instead attaches directly to the stem, appearing as an extension of the stem itself. This modification allows the phyllode to effectively perform the functions of both a leaf and a stem, thus enhancing the plant's overall photosynthetic capacity. Phyllodes are often elongated and have a broad, flattened shape with distinct veins.
Phyllodes are particularly common in arid and semiarid regions, where water conservation is crucial. By reducing the surface area of traditional leaves and modifying their structure, plants can minimize water loss through transpiration while still carrying out photosynthesis. Additionally, phyllodes display adaptations such as a waxy cuticle and reduced stomatal density to further prevent water loss.
Due to their unique characteristics, phyllodes are an essential adaptation for plants to thrive in harsh and arid environments. They are considered a remarkable evolutionary modification that allows certain species to effectively utilize available resources and survive in challenging habitats.
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A flattened, leaf-like petiole.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for PHYLLODE
Etymology of PHYLLODE
The word "phyllode" is derived from the Greek roots "phyllon" meaning "leaf" and "eidos" meaning "form" or "shape". The combination of these roots forms "phyllode", which refers to a modified leaf structure found in certain plants.
Similar spelling words for PHYLLODE
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