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": ""}
   1968-09-16 BB  alismatales O_   26276  nJj`    C l.  ^> distrito federal    Al 8a 1663258         j. rzedowski uB4_n   Y1i7 2250   6 ORILLA DE CAN4L ibba )   E. Landolt t2t6 
{"catalogNumber": "1663258", "order": "Alismatales", "family": "", "scientificName": "", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "gibba", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "E. Landolt", "recordedBy": "J. Rzedowski", "recordNumber": "26276", "verbatimEventDate": "1968-09-16", "habitat": "orilla de canal", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Distrito Federal", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "2250", "maximumElevationInMeters": ""}