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": ""}
Nevada bP    i. w. clokey j M     UNITED STATES ~n    8437 ?s^T  (ENGELM.) KNUTH u    =Gw cylindropuntia 1939-08-01 ?&    H+o o Cagtaceae cylindropuntia ramosissima ]   9=;_ sandy flat     # : Clark 1644226 O|     ramosissima >n   h7 ;I] Caryophyllales 
{"catalogNumber": "1644226", "order": "Caryophyllales", "family": "Cactaceae", "scientificName": "Cylindropuntia ramosissima", "scientificNameAuthorship": "(Engelm.) Knuth", "genus": "Cylindropuntia", "subgenus": "", "specificEpithet": "ramosissima", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "I. W. Clokey", "recordNumber": "8437", "verbatimEventDate": "1939-08-01", "habitat": "Sandy flat", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Nevada", "county": "Clark", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}