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": ""}
  Hz/X GREGGIANA       rMh 1938-08-21   |6x 1169749  ia r. schneider    CRATAEGUS Uk       sP ROSALES       `fJ|f Crataegus greggiana  JAMES B. PHIPPS eZuS# 
{"catalogNumber": "1169749", "order": "Rosales", "family": "", "scientificName": "Crataegus greggiana", "scientificNameAuthorship": "", "genus": "Crataegus", "subgenus": "", "specificEpithet": "greggiana", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "James B. Phipps", "recordedBy": "R. Schneider", "recordNumber": "", "verbatimEventDate": "1938-08-21", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}