Diagram of antheridium anatomy

An antheridium (plural: antheridia) is a haploid structure or organ producing and containing male gametes (called antherozoids or sperm). "Haplo" redirects here For the fictional character see The Death Gate Cycle. A gamete (from Ancient Greek γαμέτης; translated gamete = wife gametes = husband is a cell that fuses with another gamete The term sperm is derived from the Greek word (σπέρμα sperma (meaning "seed" and refers to the male reproductive cells. It is present in the gametophyte phase of lower plants like mosses and ferns, and also in the primitive vascular psilotophytes. In Plants and Algae that undergo Alternation of generations, a gametophyte is the multicellular structure or phase that is Haploid, containing The thallophytes are a Polyphyletic group of non-mobile Organisms traditionally described as " relatively simple Plants " or " Mosses are small soft Plants that are typically 1–10  cm (0 A fern is any one of a group of about 20000 Species of Plants classified in the phylum or division Pteridophyta, also known as Filicophyta Psilotopsida is a class of Fern -like plants As circumscribed by Smith et al Many algae and some fungi, for example ascomycetes and water moulds, also have antheridia during their reproductive stages. Algae ( sing. alga are a large and diverse group of simple typically Autotrophic organisms ranging from Unicellular to Multicellular forms A fungus (ˈfʌŋgəs is a eukaryotic Organism that is a member of the kingdom Fungi (ˈfʌndʒaɪ Ascomycota is a Division / Phylum of Fungi, and subkingdom Dikarya, whose members are commonly known as the Sac Fungi. Oomycetes also known as Water molds (or water moulds: see spelling differences) are a group of filamentous unicellular Heterokonts physically Reproduction is the Biological process by which new individual Organisms are produced

An antheridium typically consists of sterile cells and spermatogenous tissue. The cell is the structural and functional unit of all known living Organisms It is the smallest unit of an organism that is classified as living and is often called Tissue is a cellular organizational level intermediate between cells and a complete organism The sterile cells may form a central support structure or surround the spermatogenous tissue as a protective jacket. The spermatogenous cells give rise to spermatids via mitotic cell division. Cell division is a process by which a cell, called the parent cell divides into two or more cells called daughter cells. In bryophytes, the antheridium is borne on an antheridiophore, a stalk-like structure that carries the antheridium at its top. Bryophytes are all Embryophytes ('land Plants) that are non-vascular: they have tissues and enclosed reproductive systems but they lack Vascular tissue

In many gymnosperms and all angiosperms, the male gametophytes have been reduced to pollen grains and their antheridia have been reduced to a single generative cell within the pollen grain. Gymnosperm (Gymnospermae are a group of Spermatophyte seed-bearing Plants with Ovules on the edge or blade of an open Sporophyll, which are The flowering plants or angiosperms ( Angiospermae or Magnoliophyta) are the most widespread group Pollen is a fine to coarse powder consisting of microgametophytes ( pollen grains) which produce the male Gametes (sperm cells of During pollination, this generative cell divides and gives rise to two sperm nuclei. Pollination in angiosperms and Gymnosperms is the process that transfers pollen grains, which contain the male Gametes (sperm to where the female

The female counterpart to the antheridium is the archegonium. An archegonium (pl archegonia) from the Ancient Greek ἀρχή ("beginning" and γόνος ("offspring" is a multicellular

Gallery

Magnified view of developing antheridia in Hypnum cupressiforme

This fungus-related article is a stub. A fungus (ˈfʌŋgəs is a eukaryotic Organism that is a member of the kingdom Fungi (ˈfʌndʒaɪ You can help Wikipedia by expanding it.