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": ""}
    U Mexico 1169806 *BY   pubescens Wz      SAatd 1988-05-12      T &T CRATAEGUS PUBESCENS    V. PICHARDO A. 3   Stephen D. Koch y M. F. Denton dVB5|      Q Steud. contact um herbarium <  crataegus K* 
{"catalogNumber": "1169806", "order": "", "family": "", "scientificName": "Crataegus pubescens", "scientificNameAuthorship": "Steud.", "genus": "Crataegus", "subgenus": "", "specificEpithet": "pubescens", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Stephen D. Koch y M. F. Denton", "recordedBy": "V. Pichardo A.", "recordNumber": "", "verbatimEventDate": "1988-05-12", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}