The Video lecture from Kingdom Plantae (F.Sc. First Year Biology) covers the characteristics of early leaves and the evolutionary changes in the early leaves to form modern leaves. It also includes the evolutionary steps which converted microphylls to megaphylls, these steps are: Overtopping, Planation, Fusion and Webbing. Find more e-learning material and educational video lectures in Urdu at maktab.pk. These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab.