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": ""}
 X 7 1543357 l. .BX      common. flowers creamy-white inconspicuous !iWb   +p 1950-06-26    Croton humilis 4//2   bh  3057     m#z, croton  EUPHORBIACEAE o?vq   zOga G. L. Webster & R. L. Wilbur     |Zi CAMERON  V Malpighiales united states D;   
{"catalogNumber": "1543357", "order": "Malpighiales", "family": "Euphorbiaceae", "scientificName": "Croton humilis", "scientificNameAuthorship": "L.", "genus": "Croton", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "G. L. Webster & R. L. Wilbur", "recordNumber": "3057", "verbatimEventDate": "1950-06-26", "habitat": "", "occurrenceRemarks": "Common. Flowers creamy-white inconspicuous", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Cameron", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}