Plant tissues are categorized broadly into three tissue systems: the epidermis, the ground tissue, and the vascular tissue. Epidermis - Cells forming the outer surface of the leaves and of the young plant body. Vascular tissue - The primary components of vascular tissue are the xylem and phloem.
It sounds like conglomerate rock, which is made of other pieces of rock stuck together.
Answer:
Leaves of Lotus plant are very wide and disc shaped. This allows them to float on water and absorb large amount of sunlight. The stem and leaf surfaces of Lotus are coated with a wax which is very difficult to wet. Therefore, it keeps the surfaces free from excessive water even in water rich environment.