Скачать или смотреть LEAF VENATION || Reticulate Venation, Parallel Venation and Furcate Venation || with examples ||

This video is the part of the chapter Morphology of Flowering Plants ( Class 11th, NEET, CET, Competitive Exams, B.Sc, Agriculture).
This video describes the types of leaf venation.
When the veins and veinlets form a network, then it is called as Reticulate Venation. Reticulate Venation is found mainly in dicots. There are some exceptions; Some monocots have Reticulate Venation and some dicots have parallel Venation as well.
Depending on the number of mid veins present, the reticulate venation is of 2 types :
Unicostate Reticulate Venation - presence of single mid vein.
Multicostate Reticulate Venation - presence of 2 or more prominent mid veins.
Multicostate Reticulate Venation may be Convergent or Divergent.
When the veins in the lamina runs almost parallel to each other, then it is called as Parallel Venation.
Parallel Venation is found in the leaves of Monocots with some exceptions.
Parallel Venation may be Unicostate Parallel Venation or Multicostate parallel Venation. Multicostate Parallel Venation can also be Convergent Multicostate Parallel Venation or Divergent Multicostate Parallel Venation.
In Furcate Venation, veins gives off dichotomous branching or forked branching but the reticulum is not formed by the finer branches.
Furcate Venation is found in Adiantum which is a fern.
Thus, this video explains the 3 types of leaf venation with examples and exceptions.