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": ""}
MEXICO _L Uk     C8. 4851  torr. rJ&  Convolvulaceae qR  contact um herbarium :Wn  1299394 s<j?   1941-1L0-15  ?]Z     MC, gordon d. mcpherson  Ipomoea leptotoma  @cx    A jgU Stephen S. White   LEPTOTOMA x( m[   E(Nu$ Sonora    IPOMOEA 4ylU8  SOLANALES w.  
{"catalogNumber": "1299394", "order": "Solanales", "family": "Convolvulaceae", "scientificName": "Ipomoea leptotoma", "scientificNameAuthorship": "Torr.", "genus": "Ipomoea", "subgenus": "", "specificEpithet": "leptotoma", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Gordon D. McPherson", "recordedBy": "Stephen S. White", "recordNumber": "4851", "verbatimEventDate": "1941-10-15", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Sonora", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}