Comprehensive representation of gametophyte and sporophyte generations, using Equisetum hyemale as an example, complemented by E.arvense. Included are release and germination of spores, growth of prothallus, release and locomotion of spermatozoa, growth of the sporophyte from the archegonium of the gametophyte, compartmentalization of fertile and vegetative shoots, branching, morphology of the rhizome. With time lapse and slow-motion.