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MARSILEACEAE MARSILEA FAMILY

Andy Murdock, Alan R. Smith & Thomas Lemieux

Plant generally aquatic or in perennially wet areas, generally rooted in mud; rhizome creeping, slender, branched. Leaf: floating, emergent, or out of water, ± alike; blade 1-palmate or 0, << stipe; veins not or repeatedly forked, free or netted. Sporangia: in stalked, spheric or ± flat-ovoid, hard cases of 1 kind, attached near stipe base. Spores: large megaspores (female) and small microspores (male), in separate sporangia.
3 genera, ± 70 species: especially temperate. —Scientific Editors: Alan R. Smith, Bruce G. Baldwin.

Key to Marsileaceae

PILULARIA
Aquatic, submerged or in mud, forming dense clumps. Sporangium case: subterranean, fused to stalk tip, spheric, hairy; teeth 0.
± 6 species: generally temperate. (Latin: little ball, from sporangium case)

Previous taxon: Marsilea vestita subsp. vestita
Next taxon: Pilularia americana

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Sep 2 2014
Citation for this treatment: [Author of taxon treatment] 2013. Pilularia, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=8888, accessed on Sep 2 2014

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