Dichotomous Key/Dioon

Key to the species of Dioon:

Dioon
Dioon edule01.jpg
Dioon edule
Kingdom Plantae
Division Cycadophyta
Class Cycadopsida
Order Cycadales
Family Zamiaceae
Genus Dioon

Information related to Dioon

WikipediaWikispecies

Wikicommons

Dioon

  • DIO1: Leaflets straight
  • DIO2: Leaflets curved or hooked

DIO1

  • DIO3: Leaflets less than fifteen millimeters wide.
  • DIO4: Leaflets over fifteen millimeters wide.

DIO2

DIO3

DIO4

DIO5

  • DIO7: Leaflets inserted at 90 degrees to rachis.
  • DIO8: Leaflets inserted at 45 degrees or less to rachis.

DIO6

DIO7

  • Dioon holmgrenii: Leaflets seven to nine millimeters wide; Leaflets do not overlap.
  • Dioon merolae: Leaflets en to twelve millimeters wide; Leaflets overlap.

DIO8

  • Dioon caputoi: Leaflets less than five millimeters wide; Leaflets flat and do not overlap.
  • DIO9: Leaflets over five millimeters wide; Leaflets keeled and overlap.

DIO9