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": ""}
UNITED STATES ^3lN8   CYLINDROPUNTIA RAMOSISSIMA a       (U( 1618243   1945-05-31 g      > On road to Searchlight Ferry, Lake Mead    (ENGELM.) KNUTH ;% GT    &s6 I Elzada U. Clover        Cylindropuntia  
{"catalogNumber": "1618243", "order": "", "family": "", "scientificName": "Cylindropuntia ramosissima", "scientificNameAuthorship": "(Engelm.) Knuth", "genus": "Cylindropuntia", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Elzada U. Clover", "recordNumber": "", "verbatimEventDate": "1945-05-31", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "On road to Searchlight Ferry, Lake Mead", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}