1. Pollination

5. In the table below list the possible differences between both wind and insect pollinated flowers 6) 5) 4) 3) 2) 1) Wind-pollinated flower Insect-pollinated flower Characteristic

6. Usually absent Often present to attract insects 2) Nectar Flowers do not have scent Flowers are fragrant or sweet-smelling 3 ) Scent absent May be present 7) Nectar guides (marking that guide insects to nectar) Protrude + large & feathery  large s.a. to catch pollen floating in air Usually small and compact, not feathery and do not protrude; sticky so that pollen grains setting on them are not easily displaced 6) Stigmas Usually have long, slender filaments that sway in the slightest wind  pollen grains easily shaken out from anthers May not be pendulous 5) Stamens Abundant; small, smooth, dry, light  buoyant & easily blown about by wind Fairly abundant; large, sticky and heavy, rough surfaces to cling onto insects’ bodies 4) Pollen Usually small, dull-coloured and scentless (unattractive to insects) Usually large, brightly coloured and scented to attract insects.If flower small  form an influorescence 1) Flowers Wind-pollinated flower Insect-pollinated flower Characteristic

13. Structure and Pollination of an Insect-pollinated Flower (pg. 303-304) e.g. Clitoria

19. Structure and Pollination of an Wind-pollinated Flower (pg. 305-307) e.g. Grass flowers ( Ischaemum muticum)