title: Liliidae
text: # Liliidae
  
  Liliidae is a botanical name at the rank of subclass. Circumscription of the subclass will vary with the taxonomic system being used (there are many such systems); the only requirement being that it includes the family Liliaceae.
  
  ## Liliidae in Takhtajan system
  
  The Takhtajan system treats this as one of six subclasses within class Liliopsida (= monocotyledons). This subclass consists of:
  
  * subclass Liliidae
  
      superorder Lilianae
         order Melanthiales
         order Colchicales
         order Trilliales
         order Liliales
         order Alstroemeriales
         order Iridales
         order Tecophilaeales
         order Burmanniales
         order Hypoxidales
         order Orchidales
         order Amaryllidales
         order Asparagales
         order Xanthorrhoeales
         order Hanguanales
      superorder Dioscoreanae
         order Stemonales
         order Smilacales
         order Dioscoreales
         order Taccales
  
  ## Liliidae in Cronquist system
  
  The Cronquist system treats this as one of five subclasses within class Liliopsida (= monocotyledons), and it consists of:
  
  * subclass Liliidae
  
      order Liliales
      order Orchidales
  
  ## Liliidae in Dahlgren and Thorne systems
  
  In the Dahlgren system and the Thorne system (1992) this is an important name: this subclass comprises the monocotyledons (in APG II these are the monocots).
  
  ### Dahlgren (1985)
  
  * subclass Liliidae [= monocotyledons]
  
      superorder Alismatanae
      superorder Triuridanae
      superorder Aranae
      superorder Lilianae
      superorder Bromelianae
      superorder Zingiberanae
      superorder Commelinanae
      superorder Arecanae
      superorder Cyclanthanae
      superorder Pandananae
  
  ### Thorne (1992)
  
  (in the version of the system as depicted by Reveal)
  
  * subclass Liliidae [= monocotyledons ]
  
      superorder Lilianae
      superorder Hydatellanae
      superorder Triuridanae
      superorder Aranae
      superorder Cyclanthanae
      superorder Pandananae
      superorder Arecanae
      superorder Commelinanae
  
  ## Liliidae in APG II system
  
  The APG and APG II systems do not use formal botanical names above the rank of order, and names such as Liliopsida and Liliidae have no place in these systems.
  
  