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 Date: 2009-06-09 12:41:27Serpentine soil Soil in the United States Adiantum viridimontanum Symphyotrichum depauperatum Edaphic Aspidotis densa Serpentine group Aspidotis Adiantum Flora of the United States Plant taxonomy Botany |
 | Proposing New Barrens National Natural Landmarks Mary C. Brickle, Todd R. Lookingbill, and Katharina A.M. Engelhardt The National Natural Landmarks (NNL) Program, administered and maintained through the National Park SerDocID: sDNj - View Document |
 | 3 Proposing New Barrens National Natural Landmarks Mary C. Brickle, University of Richmond, Richmond, Department of Geography and the Envi-DocID: rXlO - View Document |
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