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searching for Microsporangium 12 found (18 total)

Miomoptera (317 words) [view diff] exact match in snippet view article find links to article

fed on the pollen of strobili, moving between the scales from one microsporangium to another. Metropatoridae Metropator Archaemiopteridae Guthorl, 1939

Self-pollination (1,844 words) [view diff] exact match in snippet view article find links to article

the stigma of another flower on the same flowering plant, or from microsporangium to ovule within a single (monoecious) gymnosperm. Some plants have

Stamen (1,825 words) [view diff] exact match in snippet view article find links to article

side of the anther. A pollen grain develops from a microspore in the microsporangium and contains the male gametophyte. The size of anthers differs greatly

Chordariaceae (553 words) [view diff] exact match in snippet view article find links to article

Bailey, 1987 Microcoryne Strömfelt, 1888 Microspongium Reinke, 1888 Microsporangium Mikrosyphar Kuckuck, 1895 Monosiphon L.Volkov, 1916 Myelophycus Kjellman

Tapetum (botany) (358 words) [view diff] exact match in snippet view article

Schematic of anther (1: Filament 2: Theca 3: Connective 4: Pollen sac or Microsporangium)

Alternation of generations (4,579 words) [view diff] exact match in snippet view article find links to article

produces one or more microsporangia. Microspores develop within the microsporangium by meiosis. In a willow (like all seed plants) the zygote first develops

Spore (2,055 words) [view diff] exact match in snippet view article find links to article

separate sporangia, either a megasporangium that produces megaspores or a microsporangium that produces microspores. In flowering plants, these sporangia occur

Double fertilization (1,995 words) [view diff] exact match in snippet view article find links to article

microsporangia, or pollen sacs, of the anthers on the stamens. Each microsporangium contains diploid microspore mother cells, or microsporocytes. Each

Embryophyte (3,855 words) [view diff] exact match in snippet view article find links to article

parallel to these developments, the other kind of sporangium, the microsporangium, produces microspores. A tiny gametophyte develops inside the wall

Pollen (5,640 words) [view diff] exact match in snippet view article find links to article

germination of the pollen grain may begin even before it leaves the microsporangium, with the generative cell forming the two sperm cells. Except in the

Glossary of botanical terms (28,462 words) [view diff] exact match in snippet view article find links to article

producing large spores that contain the female gametophytes. Compare microsporangium. megaspore the larger of two kinds of spores produced by a heterosporous

Glossary of plant morphology (10,353 words) [view diff] exact match in snippet view article find links to article

the ovary, and an expanded tip, the stigma. Within the stamen, the microsporangium forms grains of pollen, surrounded by a protective microspore, which