Definition

1. Noun:
   • A family of ferns: "family Parkeriaceae" is a taxonomic family of aquatic ferns, historically considered coextensive with the genus Ceratopteris.
   • A taxonomic classification: In botanical nomenclature, it refers to a specific family within the order Polypodiales, sometimes classified within the larger family Polypodiaceae.

Usage Examples

• Noun:
  • The aquatic ferns of the family Parkeriaceae are commonly known as water sprite or floating fern.
  • Some botanists argue that family Parkeriaceae should be merged into family Polypodiaceae.

Advanced Usage

• In taxonomic discussion: The term is used in scientific literature to discuss the classification and evolutionary relationships of ferns.
  • The monograph provided a detailed analysis of the morphology supporting the recognition of family Parkeriaceae.

Variants and Related Words

• Parkeriaceae: The standard form of the family name, often used without the word "family."
  • Parkeriaceae includes species adapted to aquatic habitats.
• Ceratopteris: The sole genus historically placed within this family.
  • The genus Ceratopteris is the focus of studies on fern reproduction.

Synonyms

• Ceratopteridaceae: An alternative family name sometimes used in taxonomic systems.
• Water fern family: A common descriptive name referring to its aquatic members.

Related Terms

• Polypodiaceae: The larger fern family within which Parkeriaceae is sometimes included.
  • The relationship between Parkeriaceae and Polypodiaceae is a subject of ongoing research.
• Pteridophyte: A broader term for ferns and their allies, the group to which this family belongs.

Noun

1. coextensive with the genus Ceratopteris; sometimes included in family Polypodiaceae