Table : table 55.1 Examples of Mutualistic Interactions
InteractionObligate symbiosisFacultative symbiosisObligate nonsymbiosisFacultative nonsymbiosis
Plants–mycorrhizal fungi××××
Corals–algal endosymbionts××
Lichens (algae–fungi)×
Plants–insect pollinators××
Plants–animal dispersers××