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  2. Gametophyte - Wikipedia

    en.wikipedia.org/wiki/Gametophyte

    The mature gametophyte of mosses develops into leafy shoots that produce sex organs that produce gametes. Eggs develop in archegonia and sperm in antheridia. [6] In some bryophyte groups such as many liverworts of the order Marchantiales, the gametes are produced on specialized structures called gametophores (or gametangiophores).

  3. Alternation of generations - Wikipedia

    en.wikipedia.org/wiki/Alternation_of_generations

    The moss Mnium hornum has the gametophyte as the dominant generation. It is dioicous: male plants produce only antheridia in terminal rosettes, female plants produce only archegonia in the form of stalked capsules. [26] Seed plant gametophytes are also dioicous.

  4. Sporophyte - Wikipedia

    en.wikipedia.org/wiki/Sporophyte

    Young sporophytes of the common moss Tortula muralis. In mosses, the gametophyte is the dominant generation, while the sporophytes consist of sporangium-bearing stalks growing from the tips of the gametophytes Sporophytes of moss during spring In flowering plants, the sporophyte comprises the whole multicellular body except the pollen and ...

  5. Plant reproduction - Wikipedia

    en.wikipedia.org/wiki/Plant_reproduction

    Sexual reproduction in flowering plants involves the production of separate male and female gametophytes that produce gametes. The anther produces pollen grains that contain male gametophytes . The pollen grains attach to the stigma on top of a carpel , in which the female gametophytes (inside ovules) are located.

  6. Gametogenesis - Wikipedia

    en.wikipedia.org/wiki/Gametogenesis

    Fungi, algae, and primitive plants form specialized haploid structures called gametangia, where gametes are produced through mitosis. In some fungi, such as the Zygomycota, the gametangia are single cells, situated on the ends of hyphae, which act as gametes by fusing into a zygote. More typically, gametangia are multicellular structures that ...

  7. Plant reproductive morphology - Wikipedia

    en.wikipedia.org/wiki/Plant_reproductive_morphology

    In this species, gametes are produced on different plants on umbrella-shaped gametophores with different morphologies. The radiating arms of female gametophores (left) protect archegonia that produce eggs. Male gametophores (right) are topped with antheridia that produce sperm. Plants have complex lifecycles involving alternation of generations.

  8. Prothallus - Wikipedia

    en.wikipedia.org/wiki/Prothallus

    Prothallus of the tree fern Dicksonia antarctica (note new moss plants for scale) Spore-bearing plants, like all plants, go through a life-cycle of alternation of generations. The fully grown sporophyte, what is commonly referred to as the fern, produces genetically unique spores in the sori by meiosis.

  9. Moss - Wikipedia

    en.wikipedia.org/wiki/Moss

    Chloroplasts (green discs) and accumulated starch granules in cells of Bryum capillare. Botanically, mosses are non-vascular plants in the land plant division Bryophyta. They are usually small (a few centimeters tall) herbaceous (non-woody) plants that absorb water and nutrients mainly through their leaves and harvest carbon dioxide and sunlight to create food by photosynthesis.