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": ""}
  M 30477     y UNITED STATES   ROSTRATUM %~xG    S solanales 1437582 ^     Q :tl Yavapai  J HOWARD SCOTT GENTRY    :Pb| SOLANACEAE  #Grx solanum rostratum    dunal  |     CONTACT UM HERBARIUM gccn 
{"catalogNumber": "1437582", "order": "Solanales", "family": "Solanaceae", "scientificName": "Solanum rostratum", "scientificNameAuthorship": "Dunal", "genus": "", "subgenus": "", "specificEpithet": "rostratum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Howard Scott Gentry", "recordNumber": "3077", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Yavapai", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}