germ plasm: the protoplasm of the germ cells that contains chromosomes and genes
protoplasm: the substance of a living cell (including cytoplasm and nucleus)
cycadopsida: palmlike gymnosperms: includes the surviving order Cycadales and several extinct orders; possibly not a natural group; in some systems considered a class (Cycadopsida) and in others a subdivision (Cycadophytina or Cycadophyta)