A sporangium (pl. Mucor is a genus of about 40 species of Molds commonly found in soil and on plant surfaces as well as in rotten vegetable matter A strobilus (plural strobili is an organ of many Plants that contains the reproductive structures , sporangia) is a plant or fungal structure producing and containing spores. Plants are living Organisms belonging to the kingdom Plantae. A fungus (ˈfʌŋgəs is a eukaryotic Organism that is a member of the kingdom Fungi (ˈfʌndʒaɪ In Biology, a spore is a reproductive structure that is adapted for dispersal and surviving for extended periods of time in unfavorable conditions Sporangia occur in angiosperms, gymnosperms, ferns, fern allies, bryophytes, algae, and fungi. The flowering plants or angiosperms ( Angiospermae or Magnoliophyta) are the most widespread group Gymnosperm (Gymnospermae are a group of Spermatophyte seed-bearing Plants with Ovules on the edge or blade of an open Sporophyll, which are 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 Fern ally is a general term covering a somewhat diverse group of Vascular plants that are not Flowering plants and not true Ferns Like ferns these plants Bryophytes are all Embryophytes ('land Plants) that are non-vascular: they have tissues and enclosed reproductive systems but they lack Vascular tissue 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 Their spores are sometimes called sporangiospores.
Microsporangia are the structures on the stamens of flowers called anthers, and the pollen-producing structures on the microsporophylls of male conifer cones or cycad cones. A flower, also known as a bloom or Blossom, is the reproductive structure found in Flowering plants (plants of the division Magnoliophyta, also The stamen ( Plural stamina or stamens, from Latin stamen meaning "thread of the warp " is the male A cone (in formal botanical usage Strobilus, plural strobili is an organ on Plants in the division Pinophyta ( Conifers Cycads are a group of Seed plants characterized by a large crown of compound leaves and a stout trunk.
Megasporangia are the comparable "female" structures on these plants, associated with the flower carpel and the megasporangial cone. A gynoecium (from Ancient Greek gyne, "woman" is the Female reproductive part of a Flower.
On ferns, the mature plant is a sporophyte that develops sporangia, tiny, stalked sacs which contain meiospores, on all or just certain leaves (called sporophylls if sporangia are present). 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 In Biology, a spore is a reproductive structure that is adapted for dispersal and surviving for extended periods of time in unfavorable conditions The spores are usually on the underside of the leaves.
In mosses, the little case that rises above the vegetative growth on a thin stalk is a sporangium often called a capsule that, as in ferns, produces meiospores. This sporophytic (diploid) growth arises out of the gametophytic (haploid) archegonium after the ovum is fertilized. All land plants and some Algae, have life cycles in which a haploid Gametophyte generation alternates with a Diploid sporophyte, the generation of a "Haplo" redirects here For the fictional character see The Death Gate Cycle. In Plants and Algae that undergo Alternation of generations, a gametophyte is the multicellular structure or phase that is Haploid, containing "Haplo" redirects here For the fictional character see The Death Gate Cycle. An archegonium (pl archegonia) from the Ancient Greek ἀρχή ("beginning" and γόνος ("offspring" is a multicellular The sporophyte initially has some chlorophyll, but later turns brown and becomes dependent upon the gametophyte for nutrition, which is absorbed through the foot (base of the stalk), embedded in the archegonial tissues. Chlorophyll is a green Pigment found in most Plants Algae and Cyanobacteria.
Categorized based on developmental sequence, eusporangia and leptosporangia are differentiated in the vascular plants. In a leptosporangium, found only in ferns, development involves a single initial cell that becomes the stalk, wall, and spores within the sporangium. There are around 64 spores in a leptosporangium. In a eusporangium, characteristic of all other vascular plants and some primitive ferns, the initials are in a layer (i. e. , more than one). A eusporangium is larger (hence contain more spores), and its wall is multi-layered. Although the wall may be stretched and damaged, resulting in only one cell-layer remaining.
A cluster of sporangia that have become fused in development is called a synangium. This structure is most prominent in Psilotum and Marattiaceae such as Christensenia, Danaea and Marattia. Psilotum ( whisk fern) is a genus of Fern -like Vascular plants one of two genera in the family Psilotaceae, order Class Marattiopsida is a group of Ferns containing a single order Marattiales, and family Marattiaceae. Christensenia ( syn Kaulfussia CPresl) is a genus of Ferns in the botanical family Marattiaceae Danaea Sm is a Fern genus of approximately 50 species in the Eusporangiate fern family Marattiaceae.
See also
- archegonium
- antheridium
- For bacteria-related information see endospore
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