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Liliopsida is a botanical name for the class containing the family Liliaceae (or Lily Family). A botanical name is a formal scientific name conforming to the International Code of Botanical Nomenclature (ICBN and if the plant is a Cultigen, the A class is the Taxonomic rank in the Biological classification of organisms in Biology below phylum and above order. In Biological classification, family ( Latin The Liliaceae, or the lily family, is a family of Monocotyledons in the order Liliales. It is considered synonymous (or nearly synonymous) with the name monocotyledon. Monocotyledons or monocots are one of two major groups of Flowering plants (angiosperms that are traditionally recognised the other being Dicotyledons Publication of the name is credited to Scopoli (in 1760): see author citation (botany). In Botanical nomenclature, author citation refers to citing the person (or group of people who validly published a Botanical name, i This name is formed by replacing the termination -aceae in the name Liliaceae by the termination -opsida (Art 16 of the ICBN). The Liliaceae, or the lily family, is a family of Monocotyledons in the order Liliales. The International Code of Botanical Nomenclature ( ICBN) is the set of rules and recommendations dealing with the formal Botanical names that are given to

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. This list of systems of plant taxonomy presents “taxonomic systems” used in plant classification A system of plant taxonomy, the Cronquist system is a scheme for the classification of flowering plants (or Angiosperms) A system of plant taxonomy, the Takhtajan system of plant classification was published by Armen Takhtajan, in several versions from the 1950's onwards 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. Monocotyledons or monocots are one of two major groups of Flowering plants (angiosperms that are traditionally recognised the other being Dicotyledons Earlier systems referred to this group by the name Monocotyledones, with Monocotyledoneae an earlier spelling (these names may be used in any rank). Taxonomic rank ( rank, category, taxonomic category is an abstract term used in the Scientific classification, or Taxonomy, of organisms 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). One of the modern systems of plant taxonomy, the Dahlgren system was published by monocot specialist Rolf Dahlgren. A modern system of plant taxonomy, the Thorne system (1992 of plant classification was drawn up by the botanist Robert F Liliidae is a Botanical name at the rank of subclass. Circumscription of the subclass will vary with the taxonomic system being used Modern systems, such as the APG and APG II systems refer to this group by the name monocots (a name for a clade). Monocotyledons or monocots are one of two major groups of Flowering plants (angiosperms that are traditionally recognised the other being Dicotyledons A clade is a taxonomic group comprising a single Common ancestor and all the descendants of that ancestor 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:

Liliopsida in the Cronquist system

The internal taxonomy in the Cronquist system is

Liliopsida in the Reveal system

The internal taxonomy in the Reveal system is

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