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": ""}
    i HITCHC.    Howard S. Gentry k.`  1948-09-21 d I D  pubescens t4    MUHLNBERGIA adShz    P#80& 8406   muhlenbergia pubescens l    ; Poales   t.r. soderstrom ~    KKwM CONTACT UM HERBARIEUM POACEAE P    Mexico Mi-  
{"catalogNumber": "", "order": "Poales", "family": "Poaceae", "scientificName": "Muhlenbergia pubescens", "scientificNameAuthorship": "Hitchc.", "genus": "Muhlenbergia", "subgenus": "", "specificEpithet": "pubescens", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "T.R. Soderstrom", "recordedBy": "Howard S. Gentry", "recordNumber": "8406", "verbatimEventDate": "1948-09-21", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}