Description: Plants terrestrial or rarely epiphytic, annual or perennial; rhizome usually long-creeping, subterranean or running over the surface of the ground; aerial parts erect or creeping.
Leaves simple and scale-like, ligulate, spirally arranged or in 4 rows, all alike or 2-ranked with the dorsal leaves reduced in size and appressed to the stem.
Leaves bearing sporangia (sporophylls) usually arranged in cone-like strobili; sporangia of 2 kinds, producing spores of 2 sizes.
Distribution and occurrence: World: 1 genus, c. 700 species, cosmopolitan, chiefly tropical regions. Australia: c. 11 species, all States.
Text by Peter G. Wilson
|One Genus in NSW: Selaginella|