angiosperms - 240,000 species 

• dominant for over 100 million years
• 3 major advances - flower, broad leaves, fruits
• flower - male/female gametophytes
  • androecium creates pollen in anther
  • gynoecium creates eggs in ovary
  • pollen makes tube into ovary >> forms embryo >> seed
• broad leaves - collects more sunlight
  • deciduous trees - leaves drop yearly (goes into dormant period)
• fruits - seed package >> attracts pollinators
  • digested by animals >> dropped in feces (adds nutrients)
• monocots - 1 cotyledon (seed leaf)
  • parallel veins in leaves
  • scattered vascular bundles
  • monosculate pollen
  • adventitious roots
  • floral parts in multiples of 3
• dicots - 2 cotyledons, more woody than monocots
  • netted veins in leaves
  • vascular bundles in rings
  • tricolpate pollen
  • primary/adventitious roots
  • floral parts in multiples of 4, 5