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": ""}
Houstonia 4v  united states ]&v %     Q) L.   gB$ Rubiaceae   #+  GENTIANALES  :t lamoille    GRPM S.N. c5t    tPx bean mt.  Fred . Horsford x/s<   caerulea H,$    :K Houstonia caerulea 1878-05-07 .     C 1536186 VERMONT C  S.N. ce   
{"catalogNumber": "1536186", "order": "Gentianales", "family": "Rubiaceae", "scientificName": "Houstonia caerulea", "scientificNameAuthorship": "L.", "genus": "Houstonia", "subgenus": "", "specificEpithet": "caerulea", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Fred H. Horsford", "recordNumber": "s.n.", "verbatimEventDate": "1878-05-07", "habitat": "", "occurrenceRemarks": "GRPM s.n.", "associatedTaxa": "", "country": "United States", "stateProvince": "Vermont", "county": "Lamoille", "municipality": "", "locality": "Bean Mt.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}