Monochlamydae is an artificial

taxonomic Taxonomy is the practice and science of categorization or classification. A taxonomy (or taxonomical classification) is a scheme of classification, especially a hierarchical classification, in which things are organized into groups or types. ...

group used in the identification of plants. It was largely abandoned by taxonomists in the 19th century, but has been often used since. Bentham and Hooker's classification, published in 1880, used this grouping, but stated that it was neither natural nor well defined, and that De Candolle's system was superior. Under Engler and Prantl's revision of 1931, the group Monochlamydeae was completely abandoned. The group was one of three within the

Dicotyledon The dicotyledons, also known as dicots (or, more rarely, dicotyls), are one of the two groups into which all the flowering plants (angiosperms) were formerly divided. The name refers to one of the typical characteristics of the group: namely, t ...

s, the others being Polypetalae and

Gamopetalae Gamopetalae is an artificial historical group used in the identification of plants based on Bentham and Hooker's classification system. Use by Bentham and Hooker George Bentham and Joseph Dalton Hooker published this as ''Genera plantarum ad ...

. It included plants with flowers that had either a calyx or corolla, but not both.

References

{{Reflist Historically recognized angiosperm taxa Taxa named by George Bentham