Benson,Lyman <br/><br/>
The North American subdivisions of Ranunculus 

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 - USA    1940 
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 - American Journal of Botany   v.27(9) .
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label>--Ranunculaceae--Ranunculus--USA--<br/>Botanica