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meg·a·spo·ran·gi·um (m g -sp -r n j - m). n. pl. meg·a·spo·ran·gi·a (-j - ). A structure that produces one or more megaspores. Also called macrosporangium.
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Megasporangium - Topic:Biology - Online Encyclopedia.
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ovule tissue within which an embryo develops (embryo sac); homologous with the megasporangium of a seed plant unfertilized seed; the ovule contains the megasporangium with the megagametophyte, surrounded by one or two integuments integument...
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Encyclopedia: Sporangium
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The megasporangium is surrounded by layers of sporophyte tissue called the integument. The integument and structures within (megasporangium, megaspore) are the ovule. The remaining one develops into a female gametophyte without being released from the megasporangium.
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Hutchinson encyclopedia article about megasporangium. megasporangium. Information about megasporangium in the Hutchinson encyclopedia. (redirected from megasporangium)
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Britannica online encyclopedia article on megasporangium (plant anatomy), ...sporophyte produces sporangia, which bear sporocytes (meiocytes) that undergo meiosis to form spores. Microsporangia (male sporangia) produce microsporocytes (micromeiocytes) that yield microspores. function ( in plant (life form):
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mega·spo·ran·gium (-spō ran′jē əm, -spə-). noun pl. megasporangia -·gia (-ə). a sporangium, or spore case, containing only megaspores, as in some ferns...
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Conifers (Gymnosperms, or "naked seeds") include both the largest and oldest living plants. The giant sequoia (Sequoiadendron gigantica) may attain heights in excess of 100 meters. One bristlecone pine (Pinus longaeva) is nearly 5 Conifers represent the next level of plant evolutionary development. Non-motile sperm...
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Laboratory 8: The Seed Plants - Reproduction megasporangium; The organ in which megaspores are formed. megasporocyte; Special cell of the megasporangium called the megaspore mother cell.
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