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": ""}
g heteranthera   -? 16949   Ag Heteranthera reniformis CONTACT UM HERBARIUM (D(_1%     1142231     Charles N. Horn ?    1AT ^ PONTEDERIACEAE    ruiz & pav. m h   tk . Panama      RENIFORMIS .  COMMELINALES mcG_   n h. h. bartlett and t. lasser 
{"catalogNumber": "1142231", "order": "Commelinales", "family": "Pontederiaceae", "scientificName": "Heteranthera reniformis", "scientificNameAuthorship": "Ruiz & Pav.", "genus": "Heteranthera", "subgenus": "", "specificEpithet": "reniformis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Charles N. Horn", "recordedBy": "H. H. Bartlett and T. Lasser", "recordNumber": "16949", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Panama", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}