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nounaquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales
Similar:
type of:
Definition that contains isoetales
- lycopodiate club mosses and related forms: includes Lycopodiales; Isoetales; Selaginellales; and extinct Lepidodendrales; sometimes considered a subdivision of Tracheophyta
- class lycopsida club mosses and related forms: includes Lycopodiales; Isoetales; Selaginellales; and extinct Lepidodendrales; sometimes considered a subdivision of Tracheophyta
- lycopsida club mosses and related forms: includes Lycopodiales; Isoetales; Selaginellales; and extinct Lepidodendrales; sometimes considered a subdivision of Tracheophyta
- genus isoetes type and genus of the Isoetaceae and sole extant genus of the order Isoetales
- isoetes type and genus of the Isoetaceae and sole extant genus of the order Isoetales
- class lycopodiate club mosses and related forms: includes Lycopodiales; Isoetales; Selaginellales; and extinct Lepidodendrales; sometimes considered a subdivision of Tracheophyta