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Pollen Grain
Pollen grain definition: The structure that contains the male gametophytes of seed plants.
Related Terms
Angiosperm
Annual
Antheridium
Archegonium
Biennial
Cone
Cotyledon
Cuticle
Flower
Frond
Fruit
Gametophyte
Gymnosperm
Lignin
Monocot
Ovule
Perennial
Plant
Pollination
Protonema
Rhizome
Root
Seed
Seed Coat
Sorus
Sporangium
Sporophyte
Stomata
Tracheid
Vascular Tissue
Vegetative Reproduction
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