Dichotomous Key/Magnoliophyta

1: Monocot or Dicot

• Number of cotyledons
  • One - 2
  • Two - 3

2: Liliopsida

• Pollen apertures
  • Annulate - 5
  • Not annulate - 9

4

• Number of ovules per carpel
  • One - 10
  • More than one - Arales

5: Commelinanae

• Stem consistency and cause
  • Woody due to fibrous sclerenchyma - Arecales
  • Stem not woody, or woody due to secondary growth - 6

6

• Seeds
  • Seeds arillate - Zingiberales
  • Other - 7

7

• Pollen apertures
  • Annulate - Commelinales
  • Other - 8

8

• Leaf shape
  • Leaves flat or involuted, 2-ranked - Poales
  • Other shape - Dasypogonaceae

9

• Endosperm
  • Present - #4
  • Not present - Alismatales

10

• Perianth parts
  • Undifferentiated and petaloid - Liliales