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": ""}
 Mx? 1551451    hX; 1999-02-09    - $ 19â°11's 39â°54'w     A. Juss. c            1546 h0o (     ; AWd stipulacea  
{"catalogNumber": "1551451", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "A. Juss.", "genus": "", "subgenus": "", "specificEpithet": "stipulacea", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "1546", "verbatimEventDate": "1999-02-09", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "19\u00c2\u00b011'S 39\u00c2\u00b054'W", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}