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": ""}
muhl. ex willd. JaN  Asterales WW    &|8 ontario  x6GMK na 10749           1977-08-09 E     ?7W 1443h606    SOLIDAGO B7   hispida _4jJi   Fg canada [cytol=ogical voucher] + Cc4 
{"catalogNumber": "1443606", "order": "Asterales", "family": "", "scientificName": "", "scientificNameAuthorship": "Muhl. ex Willd.", "genus": "Solidago", "subgenus": "", "specificEpithet": "hispida", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "NA 10749", "verbatimEventDate": "1977-08-09", "habitat": "", "occurrenceRemarks": "[Cytological voucher]", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}