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": ""}
    .-7# Grassland below yucca belt    1940-07-4  U.b&    PURPUREA T z q     2 + Aristida  U Roxana S[. Ferris       rHZI aristida purpurea var. purpurea var. Vl      
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Aristida purpurea var. purpurea", "scientificNameAuthorship": "", "genus": "Aristida", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "var.", "infraspecificEpithet": "purpurea", "identifiedBy": "", "recordedBy": "Roxana S. Ferris", "recordNumber": "", "verbatimEventDate": "1940-07-14", "habitat": "Grassland below yucca belt", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}