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  Lemna -- how many species?
From: Jason Hernandez <jason.hernandez74 at yahoo.com> on 2014.01.27 at 20:21:48(22976)
What is the currently accepted number of species in the genus Lemna? And are there any keys to the entire genus?

Jason Hernandez

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From: Peter Boyce <phymatarum at gmail.com> on 2014.01.27 at 22:38:03(22977)
Jason

Five genera, 38 species.

Landoltia 1

Lemna 13

Spirodela 3

Wolffia 11

Wolffiella 10


I am not aware of a complete key, but I don't have Landolt to hand to see if there is one.


Peter

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From: "D. Christopher Rogers" <branchiopod at gmail.com> on 2014.01.28 at 06:20:25(22978)
Hiyer Jason!

Try this link:

http://waynesword.palomar.edu/1wayindx.htm

Keys to genera are at the top of the page.

As an interesting aside, apparently here at Kansas University we have a very large collection of duckweeds from around the world, here in our herbarium. I have not checked it out yet . . .

Happy days!

Christopher

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From: "Marek Argent" <abri1973 at wp.pl> on 2014.01.28 at 11:15:52(22979)
Hello,

Some keys are here, but probably outdated as this page is about the Lemnaceae family.

http://waynesword.palomar.edu/1wayindx.htm

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