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": ""}
  b_ delta  BEACH. tG       P|m 1316964   MELVERN F. TESSENE WP           8ysM 150  08eTD -866366 MALPIGHIA1ES AGJ     x, SALIX EXIGUA NUTT.   
{"catalogNumber": "1316964", "order": "Malpighiales", "family": "", "scientificName": "Salix exigua", "scientificNameAuthorship": "Nutt.", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Melvern F. Tessene", "recordNumber": "150", "verbatimEventDate": "", "habitat": "Beach.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Delta", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-86.6366", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}