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": ""}
   n. charles d. richards   W b swamp north of baraga.  "shrub 7 ft. tall8." [yng. pubesc. lfs; pist. fls. - crb] Vx   fZ salix  UNITED STATES Dq   1949-05-21 gd   1649 #  Michigan v    +W$ malpighiales    Sm. 5K SJ      gx   salix petiolaris    tO  + 1319139  2 ta Baraga
{"catalogNumber": "1319139", "order": "Malpighiales", "family": "", "scientificName": "Salix petiolaris", "scientificNameAuthorship": "Sm.", "genus": "Salix", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Charles D. Richards", "recordNumber": "1649", "verbatimEventDate": "1949-05-21", "habitat": "", "occurrenceRemarks": "\"Shrub 7 ft. tall.\" [Yng. Pubesc. Lfs; pist. Fls. - CRB]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Baraga", "municipality": "", "locality": "Swamp north of Baraga.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}