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": ""}
 bm acuminata 1262063 m  FAGALES ,     ^.ml (schltdl.) furlow    L3 1940-07-C24       h5tEz contact um herbarium WILLIAM C. LEAVENWORTH   *,  alnus acuminata subsp. arguta S   ARGU7A K   MEXICO Y   9I SUBSP.  343 tvRE    s- alnus  UL+o Betulaceae
{"catalogNumber": "1262063", "order": "Fagales", "family": "Betulaceae", "scientificName": "Alnus acuminata subsp. arguta", "scientificNameAuthorship": "(Schltdl.) Furlow", "genus": "Alnus", "subgenus": "", "specificEpithet": "acuminata", "verbatimTaxonRank": "subsp.", "infraspecificEpithet": "arguta", "identifiedBy": "", "recordedBy": "William C. Leavenworth", "recordNumber": "343", "verbatimEventDate": "1940-07-24", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}