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": ""}
    1931-10-07 <   MÃ¼LL.ARG. :c=*  H. VON ROZYNSKI ?  croton |  torreyanus A      kBf  malpighiales   ,Y&3 SHRUB  1160466 ./*          %>.B  Mexico Croton torreyanus +;> 
{"catalogNumber": "1160466", "order": "Malpighiales", "family": "", "scientificName": "Croton torreyanus", "scientificNameAuthorship": "M\u00c3\u00bcll.Arg.", "genus": "Croton", "subgenus": "", "specificEpithet": "torreyanus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "H. von Rozynski", "recordNumber": "", "verbatimEventDate": "1931-10-07", "habitat": "", "occurrenceRemarks": "Shrub", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}