15 million leaves are on the Betul Lenta
Betula lenta, or black birch, typically has one prominent vein running down the center of each leaf, with smaller branching veins extending outwards.
8-12 pairs
15,000,000,000
the veins are parallel to each other
about twenty
Venation is how a the leaf veins are organized. Netted venation is when there are larger veins with many smaller veins branches making a type of web pattern.
There are many advantages of having a network of veins in a leaf, Firstly there are a strong network of veins which support the lamina. Vascular bundles (veins) are made os vessels and sieve tubes which is advantageous, becausen it allows substances to pass through the leafy system. The veins help the leaf to move water and food through the xylem and phloem tissues.
There are around 30 different species of birch trees in the world, with the most common being the Betula pendula (silver birch) and Betula nigra (river birch). Each species has unique characteristics such as bark texture, leaf shape, and size.
Monocot plants typically have parallel venation in their leaves, where the veins run parallel to each other from the base to the tip of the leaf. This is in contrast to dicot plants, which have reticulate venation where the veins form a branching network across the leaf.
9 cotyledons
The Blade, or lamina, is the broad, flat part of the leaf. Photosynthesis occurs in the blade, which has many green food-making cells.
In the seed only one. After germination many