Flowering plants

 
 

Cotyledons are leaf-like structures that are part of the embryo - also known as seed leaves

Monocotyledonous (monocot)

  1. Species - 60,000 (palm, lily, orchid, grass)

  2. Cotyledons (seed leaves ) - One

  3. Flower parts

    • typically multiples of 3

    • similar sepals and petals

  4. Leaves

    • often strap-like

    • parallel veins

  5. Roots

    • fibrous

    • no primary tap-root

  6. Vascular bundles

    • scattered in stem

    • in rings in root

  7. Secondary growth

    • absent (even in woody-seeming plants like bamboo and palm)

DICOTYLEDONOUS (DICOT)

  1. Species - 300,000 (pea, daisy, rose, mint)

  2. Cotyledons (seed leaves ) - Two

  3. Flower parts

    • typically multiples of 4 or 5

    • distinct sepals and petals

  4. Leaves

    • diverse shapes

    • netlike veins

  5. Roots

    • lateral branching

    • persistent primary tap-root

  6. Vascular bundles

    • in centre of roots

    • in rings in stem

  7. Secondary growth

    • present in woody plants (many dicots are herbaceous)lose