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": ""}
  AUf^N WITH DASYLIRION-AGAVE/, ON GENTLE SLOPE imbricata %   #  1644178        cylindropuntia imbricata      MARGERY S. ANTHONAY V H~  Cactaceae F         -  brewster   3Rq. (Haw.) F.M. Knuth    
{"catalogNumber": "1644178", "order": "", "family": "Cactaceae", "scientificName": "Cylindropuntia imbricata", "scientificNameAuthorship": "(Haw.) F.M. Knuth", "genus": "", "subgenus": "", "specificEpithet": "imbricata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Margery S. Anthony", "recordNumber": "", "verbatimEventDate": "", "habitat": "With Dasylirion-Agave, on gentle slope", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Brewster", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}