Biologists believe that mosses were among the first plants to move from the oceans to the land. This set uses different species of moss to illustrate specific aspects of the basic life cycle of all members of the phylum Bryophyta. 1. Gametophyte - wm (5X) 2. Female and male plants - ls/st (12X) 3. Sex organs - ls/st (120X) 4. Sporophyte - ls/st (260X) 5. Spores - ls/st (260X) 6. Germinating spores - wm/st (150X) 7. Buds - wm (30X) 8. Sphagnum protonema - wm (45X)