What type of cell do you start with in Meiosis?
Meiosis starts with a diploid cell and produces four haploid cells.  In animals, the starting diploid cell is usually called a germ cell and the surviving haploid cells become gametes (sperm and ova).  (In animals, the female mitotic sequence produces only one ovum; the other three haploid cells become "polar bodies".)

In other organisms such as plants, the starting diploid cell is typically not called a "germ cell" as it is not distinguished early in the organism's life.  Instead the starting cell can be any undifferentiated diploid cell that finds itself in the appropriate location (e.g. in a flower) at the appropriate time.