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Family OSMUNDACEAE

Description: Terrestrial ferns with erect or semierect trunks, usually bearing 2 or more crowns of fronds.

Fronds uniform or somewhat dimorphic, 2-pinnate or more compound; stipe with 2 stipular expansions at the base; vernation circinate; veins free.

Sporangia relatively large and ± globose, shortly stalked, not grouped into definite sori, indusia absent, splitting when mature.


Distribution and occurrence: World: 3 genera, c. 18 species, cosmopolitan. Australia: 2 genera, 2 species, Qld, N.S.W., Vic., Tas., S.A.

External links:
Wikipedia

Text by Peter G. Wilson
Taxon concept:

 Key to the genera 
1Mature fronds leathery, stomates presentTodea
Mature fronds membranous, stomates absentLeptopteris

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