There are 2 life cycles in every plant: the gametophyte and the sporophyte. The sporophyte is the diploid 2N portion of the plant’s life cycle. For the angiosperm pictured the sporophyte is the dominant stage, but this isn’t the same for all plants. In the mosses the sporophyte is not the dominant stage, but for every other plant group the sporophyte is dominant. The saprophyte will always grow up regardless of whether it is dominant or not.