Angiosperm; what are angiosperms?

– Angiosperms are flowering plants
– they produce/bear seeds enclosed in a fruit wall
– classified into monocotyledons and dicotyledons
– they are the most widely distributed plants/colonize all habitats
– include trees, shrubs, herbs, grasses, aquatic plants
– flower may be bisexual or unisexual
– plants may be monoecious and dioecious
– xylem consist of both vessels and tracheids
– possess eight nucleate embryo sac/double fertilization
– pollination may be cross or self
– and by various agents e.g wind, animals, etc.
– angiosperm represents the highest point in plant evolution
– they serve as food or cash crop
– their phloem has companion cell

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