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": ""}
  7400 um    MX , "corollas white."    [ MICHIGAN Penstemon digitalis >  united states    1240272 4@^y    ZEvG6NUTT. EX SIMS  LAMIALES D g    #u x= PENSTEMON      `JxP^ Edward G. Voss      5eL W edge sec. 26, Hamilton Tp. ca. 4. mi. NE of Ashley.
{"catalogNumber": "1240272", "order": "Lamiales", "family": "", "scientificName": "Penstemon digitalis", "scientificNameAuthorship": "Nutt. ex Sims", "genus": "Penstemon", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Edward G. Voss", "recordNumber": "7400", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "\"Corollas white.\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "W edge sec. 26, Hamilton Tp., ca. 4.5 mi. NE of Ashley.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}