structure of clubmoss or lycopodium running clubmoss or lycopodium clavatum gametophyte

antheridium archegonium background biology botany clavatum club clubmoss creeping developing diagram drawing fertilisation fertilization flora floral gamete gametophyte germinating germination green ground illustration isolated leaf lycophyta lycopodium medicinal morphology moss mycorrhizal natural nature part parts phytomorphology pine plant reproduction rhizoids rhizome running scheme sperm structure symbiotic vector white zygote