sentences:  But as the regions became more familiar to scientists in the nineteenth century, Bartram's accuracy was confirmed.He is considered the scientific discoverer of several plant species, including the Franklin tree "(Franklinia alatamaha)", which was rare when Bartram described it and later became extinct in the wild.Because of the sixteen-year delay between the completion of his travels and the publication of his book, Bartram missed the opportunity to be recognized as the first describer of several more species.