The specimen is credited to Robert Brown, but gardener Peter Good and the botanical artist Ferdinand Bauer also contributed to Brown's specimen collection, often without attribution. A more precise date and location cannot be given, as neither Brown nor Good mentions the collection in his diary.
The specimen's attribution is to Robert Brown, but it was gathered with assistance from Peter Good and Ferdinand Bauer, who contributed without recognition.  A precise date and location are unavailable due to the lack of documentation by either Brown or Good regarding the collection.