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Definition of Class lycopsida
1. Noun. Club mosses and related forms: includes Lycopodiales; Isoetales; Selaginellales; and extinct Lepidodendrales; sometimes considered a subdivision of Tracheophyta.
Exact synonyms: Class Lycopodiate, Lycopodiate, Lycopsida
Generic synonyms: Class
Group relationships: Division Pteridophyta, Pteridophyta
Member holonyms: Class Lycopodineae, Lycopodineae, Club Moss, Club-moss, Lycopod, Lepidodendrales, Order Lepidodendrales, Lycopodiales, Order Lycopodiales, Order Selaginellales, Selaginellales, Isoetales, Order Isoetales
Generic synonyms: Class
Group relationships: Division Pteridophyta, Pteridophyta
Member holonyms: Class Lycopodineae, Lycopodineae, Club Moss, Club-moss, Lycopod, Lepidodendrales, Order Lepidodendrales, Lycopodiales, Order Lycopodiales, Order Selaginellales, Selaginellales, Isoetales, Order Isoetales