Refactor the unstructured text into a valid JSON dictionary. The key names follow the Darwin Core Archive Standard. If a key lacks content, then insert an empty string. Fill in the following JSON structure as required: {"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}
     &=Cd+ "scarce on low dues" Rogers McVaugh bd4lr   2y MICHIGAN       Gx united states     i-o j nw crner, ca. 2 mi. w of atwood Antrim Ys.   k longifolia   iIb@3 Calamovilfa longifolia var. magna  FZ poaceae   SU4e 12576  ~ )x SCRIBN. & MERR. Calamovilfa GqOZB  
{"catalogNumber": "", "order": "", "family": "Poaceae", "scientificName": "Calamovilfa longifolia var. magna", "scientificNameAuthorship": "Scribn. & Merr.", "genus": "Calamovilfa", "subgenus": "", "specificEpithet": "longifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Rogers McVaugh", "recordNumber": "12576", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "\"scarce on low dunes\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Antrim", "municipality": "", "locality": "NW corner, ca. 2 mi. w of Atwood", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}