A monocot or monocotyledon (mono- means one)
has only one seed leaf while the dicot or dicotyledon (di- means two) has two
seed leafs. Note that a cotyledon is a seed leaf. The seed inside the monocot
and dicot needs a source of energy to support the embryo until it can collect
its own food. In monocots, endosperm is the source of food located inside the
seed coat but is separated from the seed leaf. In dicots, the seed leaf contains
the endosperm.
