What Are the Simplest Land Plants? 1. There are many types of algae. Be able to: Indicate how algal groups are distinguished based on their pigments Name and describe the group of algae that gave rise to the first plants 2. Indicate the main difference in the life cycle of ancestral algae and the first plants. 3. Bryophyte is a general name for the simplest plants. Be able to: Give common names for the three phyla of bryophytes. Indicate the habitat and general structure of moss plants. Describe the life cycle of moss, using the terms gametophyte, sporophyte, haploid, diploid, fertilization, and spores. Explain how the young sporophyte is protected and nourished in bryophyte life cycles.