Liliopsida Explained

Liliopsida Batsch (synonym: Liliatae) is a botanical name for the class containing the family Liliaceae (or Lily Family). It is considered synonymous (or nearly synonymous) with the name monocotyledon. Publication of the name is credited to Scopoli (in 1760): see author citation (botany). This name is formed by replacing the termination -aceae in the name Liliaceae by the termination -opsida (Art 16 of the ICBN).

Although in principle it is true that circumscription of this class will vary with the taxonomic system being used, in practice this name is very strongly linked to the Cronquist system, and the allied Takhtajan system. These two are the only major systems to use the name, and in both these systems it refers to the group more widely known as the monocotyledons. Earlier systems referred to this group by the name Monocotyledones, with Monocotyledoneae an earlier spelling (these names may be used in any rank). Systems such as the Dahlgren and Thorne systems (more recent than the Takhtajan and Cronquist systems) refer to this group by the name Liliidae (a name in the rank of subclass). Modern systems, such as the APG and APG II systems refer to this group by the name monocots (a name for a clade). Therefore, in practice the name Liliopsida will almost surely refer to the usage as in the Cronquist system.

In summary the monocotyledons were named:

Each of the systems mentioned above use their own internal taxonomy for the group.

Liliopsida in the Takhtajan system

The Takhtajan system used this internal taxonomy:

subclass Liliidae

superorder Lilianae

superorder Dioscoreanae

subclass Commelinidae

superorder Bromelianae

superorder Pontederianae

superorder Zingiberanae

superorder Commelinanae

superorder Hydatellanae

superorder Juncanae

superorder Poanae

subclass Arecidae

superorder Arecanae

subclass Alismatidae

superorder Alismatanae

subclass Triurididae

superorder Triuridanae

subclass Aridae'

superorder Aranae

superorder Cyclanthanae

superorder Pandananae

superorder Typhanae

Liliopsida in the Cronquist system

The internal taxonomy in the Cronquist system is:

subclass Alismatidae

order Cyclanthales

order Arales

subclass Commelinidae

order Commelinales

order Eriocaulales

order Restionales

order Juncales

order Cyperales

order Hydatellales

order Typhales

subclass Zingiberidae

order Bromeliales

order Zingiberales

subclass Liliidae

order Liliales

order Orchidales

Liliopsida in the Reveal system

The internal taxonomy in the Reveal system is:

subclass 1. Alismatidae

superorder 1. Butomanae

superorder 2. Alismatanae

subclass 2. Triurididae

subclass 3. Aridae

superorder 1. Acoranae

superorder 2. Aranaea

superorder 3. Cyclanthanae

superorder 4. Pandananae

subclass 4. Liliidae

subclass 5. Arecidae

superorder 1. Arecanae

subclass 6. Commelinidae

superorder 1. Bromelianae

superorder 2. Pontederianae

superorder 3. Commelinanae

superorder 4. Hydatellanae

superorder 5. Typhanae

superorder 6. Juncanae

subclass 7. Zingiberidae

superorder 1. Zingiberanae

Bibliography

External links