Differences Differences Between Monocots Between Monocots and Dicotsand Dicots

What are they?What are they?

AllAll flowering plants fall into one flowering plants fall into one of two categoriesof two categories– Monocotyledons (Monocots) &Monocotyledons (Monocots) &– Dicotyledons (Dicots)Dicotyledons (Dicots)

How to tell?How to tell?

Distinguish based on: Distinguish based on: – # of Cotyledons (seed Leaves)# of Cotyledons (seed Leaves)– Leaf vein layoutLeaf vein layout– Vascular layoutVascular layout– # of flower parts# of flower parts– Root typeRoot type

Monocotyledons Monocotyledons (Monocots)(Monocots)

Some examples are:Some examples are:– PalmsPalms– GrassesGrasses– OrchidsOrchids– onionsonions

Characteristics of Characteristics of MonocotsMonocots

Dicotyledons Dicotyledons (Dicots)(Dicots) Some examples of Dicots are:Some examples of Dicots are:

– OaksOaks– RosesRoses– MustardsMustards– CactiCacti– sunflowerssunflowers

Characteristics of Characteristics of DicotsDicots

Comparison of PlantsComparison of Plants

Monocot is on the Monocot is on the leftleft– Oat plantOat plant

Dicot is on the Dicot is on the rightright– Bean plantBean plant

Notice the Notice the difference in the difference in the two plantstwo plants

Vascular Bundle of Vascular Bundle of MonocotsMonocots

In monocots, the In monocots, the vascular bundles vascular bundles in the stem cross in the stem cross section are section are usually scattered usually scattered or more complex or more complex of an of an arrangement as arrangement as compared to compared to dicots.dicots.

Vascular Bundle of Vascular Bundle of DicotsDicots

The vascular The vascular bundles in the bundles in the stem cross stem cross section of dicots section of dicots are arranged in a are arranged in a circle, or ring. circle, or ring.

A Comparison of A Comparison of Monocots and DicotsMonocots and Dicots

Monocot or Dicot?Monocot or Dicot?

Monocot or Dicot?Monocot or Dicot?

Monocot or Dicot?Monocot or Dicot?

Monocot or Dicot?Monocot or Dicot?

Monocot or Dicot?Monocot or Dicot?

Monocot or Dicot?Monocot or Dicot?

Monocot or Dicot?Monocot or Dicot?

Monocot or Dicot?Monocot or Dicot?

Monocot or Dicot?Monocot or Dicot?

Monocot or Dicot?Monocot or Dicot?