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Genus Pilularia Family Marsileaceae

Description: Aquatic or semiaquatic perennials; rhizome creeping, covered with hairs.

Fronds scattered along rhizome, simple, filiform and grass-like.

Sporocarps borne singly at the base of sterile fronds, usually bent downwards and often buried in the substrate; globose, hard and pill-like with numerous megasporangia and microsporangia; dehiscence longitudinal, sporangia and spores shed in a mass of mucilage.


Distribution and occurrence: World: 6 species, Europe, America & Australasia. Australia: 1 species (endemic).

Text by Peter G. Wilson
Taxon concept:

One species in NSW: Pilularia novae-hollandiae

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