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": ""}
Walter N. Koelz JS*_    DROSERA ROTUNDIFOLIA ]lH6   NORTH CHANNEL, WHITEFISH BAYt]L&      rotndifolia ,N4   CANADA e            . Sudbury   Q my 1501503 DROSERACEAE T:,v   y+c L.  
{"catalogNumber": "1501503", "order": "", "family": "Droseraceae", "scientificName": "Drosera rotundifolia", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "rotundifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "", "county": "Sudbury", "municipality": "", "locality": "North Channel, Whitefish Bay", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}