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": ""}
       |r texas  U EUPHORBIACEAE  dioicusMo.]   CAV.  -[x     1543209 a     ; Su Croton        abundant, subshrubby, 1 m. h@igh, with many dead ends; stam. fls. greenish-white; pist. fls. not seen J4 
{"catalogNumber": "1543209", "order": "", "family": "Euphorbiaceae", "scientificName": "", "scientificNameAuthorship": "Cav.", "genus": "Croton", "subgenus": "", "specificEpithet": "dioicus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "Abundant, Subshrubby, 1 m. high, with many dead ends; stam. fls. greenish-white; pist. fls. not seen", "associatedTaxa": "", "country": "", "stateProvince": "Texas", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}