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": ""}
Scheer ex Salm-Dyck 7Vr    j  Mammillaria CACTACEAE _N fq     e. u. clover C           #eF  texas Near Tabasco, 8 mi. west of Mission igW .   MAMMILLARIA POTTSII ~7`S    A$XF1 pottsii 1642191 C.       y0^G 1886 caryophyllales Y%e 
{"catalogNumber": "1642191", "order": "Caryophyllales", "family": "Cactaceae", "scientificName": "Mammillaria pottsii", "scientificNameAuthorship": "Scheer ex Salm-Dyck", "genus": "Mammillaria", "subgenus": "", "specificEpithet": "pottsii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "E. U. Clover", "recordNumber": "1886", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Texas", "county": "", "municipality": "", "locality": "Near Tabasco, 8 mi. west of Mission", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}