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": ""}
bois blanc island, echo lake. w,   x2 1334621 s.n. ;   Camp Herb. No. 1565 ,C  H1_ Alismatales  L. CZR]    gram+ineus&     45.749673 M h    POTAMOGETON GRAMINEUS q2     michigan potamogetonaceae ushra  samuel h. camp & donn4 r. camp <8M<I e     L@ anton a. reznicek  Ld  1894-0728  Potamogeton !  -84.462238 ?!  United States Fn  Mackinac xG    
{"catalogNumber": "1334621", "order": "Alismatales", "family": "Potamogetonaceae", "scientificName": "Potamogeton gramineus", "scientificNameAuthorship": "L.", "genus": "Potamogeton", "subgenus": "", "specificEpithet": "gramineus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "Samuel H. Camp & Donna R. Camp", "recordNumber": "s.n.", "verbatimEventDate": "1894-07-28", "habitat": "", "occurrenceRemarks": "Camp Herb. No. 1565", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Mackinac", "municipality": "", "locality": "Bois Blanc Island, Echo Lake.", "decimalLatitude": "45.749673", "decimalLongitude": "-84.462238", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}