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The female counterpart to the antheridium in cryptogams is the archegonium, and in flowering plants is the gynoecium. An antheridium typically consists of sterile cells and spermatogenous tissue . The sterile cells may form a central support structure or surround the spermatogenous tissue as a protective jacket.
An archegonium (pl.: archegonia), from the Ancient Greek ἀρχή ("beginning") and γόνος ("offspring"), is a multicellular structure or organ of the gametophyte phase of certain plants, producing and containing the ovum or female gamete. The corresponding male organ is called the antheridium. The archegonium has a long neck canal or ...
Each antheridium develops on a long, slender stalk made up of two rows of cells. [8] Individual colonies are often multiclonal, with male and female plants growing intermixed, indicating establishment from multiple spores. While female plants are relatively common (about 49% of shoots), male plants are less frequently found (around 10% of ...
Most plants are monoecious, with both sex organs on the same plant, but some plants (even within the same species) are dioecious, with separate male and female gametophytes. The female organs are known as archegonia (singular archegonium) and the male organs are known as antheridia (singular antheridium). Both kinds of organs develop just below ...
The plant itself is about 85 x 5mm. [4] It is dioicous. Dioicous is defined as a plant having the male and female reproductive organs in separate individuals. An archegonium is a multicellular reproductive organ that produces female gametes. The antheridium is the male structure that holds, creates and releases sperm.
The main axis of the plant, which is upright, bears a set of spirally arranged, sessile leaves having a clearly distinguishable midrib. Sporophyte of Funaria. At the apex of the main plant axis, the antheridium is borne. This is the male part of the shoot. A lateral branch from the main plant axis bears the female shoot archegonium at its meristem.
Anthidium is a genus of bees often called carder or potter bees, who do not cut leaves, but use conifer resin, plant hairs, mud, or a mix of them to build nests.Like other members of the family Megachilidae (most of which are called "leafcutter bees"), they are solitary bees with pollen-carrying scopa that are only located on the ventral surface of the abdomen (other bee families have pollen ...
Bahasa Indonesia; Edit links. Article; Talk; English. Read; Edit; View history ... This article contain the list of Indonesian endemic plants: Species name Family ...