Botanical Society of America <br/><br/>
Location of type specimens, by the Commitee on Nomenclature of the Botanical Soc. of America 

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 - Washington-USA  (copia dactilografiada)  1935 
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<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label>--Especimenes--Nomenclatura--<br/>Botanica