Definition

Noun: - Class Filicopsida: A major class of vascular plants, commonly known as ferns, characterized by having roots, stems, and leaves (fronds), and reproducing via spores rather than seeds.

Usage

• Class Filicopsida is a scientific, taxonomic term used in botany and biology to categorize a specific group of plants.
• It is typically used in academic, scientific, or technical writing and discourse.

Examples

• The fossil record shows that Class Filicopsida was dominant during the Carboniferous period.
• In our botany course, we studied the life cycle of plants belonging to Class Filicopsida.
• The diversity within Class Filicopsida is immense, with thousands of fern species found worldwide.

Advanced Usage

• The term is used in phylogenetic studies and plant systematics to discuss the evolution and relationships of ferns.
• It may be contrasted with other plant classes like Class Lycopodiopsida (clubmosses) or Class Equisetopsida (horsetails).

Variants and Related Words

• Filicopsida (noun): Often used synonymously without "class."
• Filicopsid (adj): Pertaining to or characteristic of this class.
• Fern (noun): The common name for plants in this class.
• Pteridophyta (noun): A former division name that included ferns and their allies; Class Filicopsida is a major group within this lineage.

Synonyms

• Ferns
• True ferns
• Leptosporangiate ferns (refers to the most common and diverse group within Filicopsida)

Notes on Meaning

• The term refers strictly to a taxonomic rank. It does not have idiomatic or phrasal verb uses.
• While "fern" is the common name, Class Filicopsida specifies the exact scientific classification.

Noun

1. ferns