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": ""}
   A. 1108172 F. LINDHEIMER M%       C c TEXAS   gentianales B6gQ4  OPEN GRAVELLY BANKS OF STREAMLETS ;`   ^$  (Gray) Gray   MD United States    9^=x houstonia humifusa  NEAR FREDERICKSBURG YRk  humifusa #DC   621 y     sE Rubiaceae 
{"catalogNumber": "1108172", "order": "Gentianales", "family": "Rubiaceae", "scientificName": "Houstonia humifusa", "scientificNameAuthorship": "(Gray) Gray", "genus": "", "subgenus": "", "specificEpithet": "humifusa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "F. Lindheimer", "recordNumber": "621", "verbatimEventDate": "", "habitat": "Open gravelly banks of streamlets", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Texas", "county": "", "municipality": "", "locality": "Near Fredericksburg", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}