Definition

Proper noun A taxonomic family name used in some botanical classification systems. It refers to a group of flowering plants that includes the genus Corylus (hazels or filberts). In many modern classification systems, this group is not recognized at the family level and is instead included within the larger family Betulaceae (the birch family).

Usage Notes

• The term "Corylaceae" is primarily used in historical or specialized taxonomic contexts. It is a scientific, technical term from botany.
• It is always treated as a singular proper noun (e.g., ).
• In common language and most contemporary botanical texts, the plants it describes are referred to as part of the birch family (Betulaceae).

Examples

• In a taxonomic discussion: "Some older systems place the hazel and hornbeam trees in the family Corylaceae."
• Comparing classifications: "While Engler's system recognized Corylaceae, the APG system subsumes it within Betulaceae."
• Defining a genus: "The genus is the type genus for the family Corylaceae."

Advanced Usage

• Phylogenetic context: The term is often encountered in discussions about the evolution and classification of the order Fagales. Its usage signals a specific taxonomic viewpoint.
• Synonymy: In scientific literature, you may see it noted as "Corylaceae Mirb." (indicating the authority who published the name, Louis Augustin Guillaume Bosc).

Variants and Related Words

• Corylaceae: The standardized form of the family name, often used without the word "family" preceding it in technical lists or keys.
• Betulaceae: The broader family name that is now more commonly accepted to include the genera once separated into Corylaceae.
• Corylus: The key genus within this group, comprising hazel and filbert trees and shrubs.
• Carpinus: The genus for hornbeams, often included in the Corylaceae in those classification systems that recognize it.

Synonyms

• Hazel family (a common name, though not a formal taxonomic synonym).
• Subfamily Coryloideae (the rank often given to this group within the family Betulaceae in modern systems).

Different Meanings

This term has only one specific meaning: a taxonomic grouping in botany. It does not have general, non-scientific definitions.

Noun

1. used in some classification systems for the genus Corylus