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18 kwi 2013 · High major VLA through palmate venation (multiple first-order veins) enables leaves to be larger and thinner, but with the advantages of being protected against disruption of the vein system, and with lower cost of petiole relative to leaf size
While both patterns serve the purpose of transporting water, nutrients, and sugars throughout the leaf, palmate venation provides a more efficient distribution system due to its multiple main veins, while pinnate venation offers a more delicate and intricate appearance.
Pinnate Venation 4. Palmate Venation F. Leaf Arrangement 1. Alternate 2. Opposite ... forming a continuous network of tubes that efficiently move water throughout the plant. ## Phloem Phloem, the food-conducting tissue, carries sugars produced during photosynthesis from the leaves to other parts of the ... Leaves can be broadly classified into ...
Parallel venation is found in monocots, and pinnate and palmate venation is common in eudicots. The maidenhair tree, ginkgo (Ginkgo biloba), has a unique venation pattern in which each vein divides into two similar parts. This is known as dichotomous venation (Figure \(\PageIndex{12}\)).
30 sty 2024 · In pinnate venation, there is a midvein or midrib and secondary, smaller, veins branching to either side of the midvein. An example of a plant with pinnate venation on its leaves is avocado (Figure \(\PageIndex{7}\)). In parallel venation, secondary veins are parallel to the midrib and each other. Parallel venation is characteristic of monocots ...
We synthesize classical concepts and the recent literature on a wide range of aspects of leaf venation. We describe 10 major structural features that contribute to multiple key functions, and scale up to leaf and plant performance.
5 maj 2022 · Our results showed an extremely strong and consistent scaling relationship of leaf venation architecture with leaf size across species with different leaf habits (evergreen and deciduous) and leaf vein types (palmate-veined and pinnate-veined) within a community.
