nothing related to flower

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Across
  1. 3. later turns into fruit
  2. 4. is the outer covering of bud
  3. 6. are the colourfull part of the plant
  4. 8. is the fusion of male and female gamets
Down
  1. 1. later forms embryo
  2. 2. is pollinated by bats
  3. 4. has pollen tube inside it
  4. 5. contain the female gamets of plant
  5. 6. contains the male gamets of plant
  6. 7. is the sticky part of the flower