Forsskål's companion Niebuhr, who was the only one of the participants to survive the expedition, was entrusted with the care of editing his manuscripts, and published in 1775 "Descriptiones Animalium – Avium, amphiborum, insectorum, vermium quæ in itinere orientali observavit Petrus Forskål". In the same year his account of the plants of Yemen and of lower Egypt also appeared, under the title of "Flora Ægyptiaco-Arabica sive descriptiones plantarum quas per Ægyptum Inferiorem et Arabiam felicem detexit, illustravit Petrus Forskål". Most of his specimens were lost in transport or deteriorated due to bad storage in Copenhagen; his herbarium was reconstructed some 150 years after his death by the botanist Carl Christensen.