Joseph Marie Henry Alfred Perrier de la Bâthie was a French botanist who specialized in the plants of Madagascar.
Heinrich Gustav Adolf Engler was a German botanist. He is notable for his work on plant taxonomy and phytogeography, such as Die natürlichen Pflanzenfamilien, edited with Karl A. E. von Prantl.
Isolona zenkeri is a species of plant in the Annonaceae family. It is found in Cameroon, The Republic of the Congo and Gabon. Adolf Engler, the German botanist who first formally described the species, named it after Georg August Zenker who collected the sample Engler examined. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.
Pierreodendron is a genus of plants in the family Simaroubaceae.
Uvariastrum zenkeri is a species of plant in the Annonaceae family. It is found in Cameroon and Nigeria. It is threatened by habitat loss.
Oliverella is a genus of flowering plants belonging to the family Loranthaceae.
Uvariopsis zenkeri Engl. is a species of flowering shrub in the family Annonaceae endemic to Cameroon and the Central African Republic.
Zizkaea is a monotypic genus of flowering plants belonging to the family Bromeliaceae. It only contains one known species, Zizkaea tuerckheimii.
Winklerella is a monotypic genus of flowering plants belonging to the family Podostemaceae. It only contains one known species, Winklerella dichotoma.
Restella is a monotypic genus of flowering plants belonging to the family Thymelaeaceae. It only contains one known species, Restella alberti(Regel) Pobed.
Iljinia is a monotypic genus of flowering plants belonging to the family Amaranthaceae. It only contains one species, Iljinia regelii(Bunge) Korovin ex Iljin
Koordersiodendron is a monotypic genus of flowering plants belonging to the family Anacardiaceae. It only contains one known species, Koordersiodendron pinnatum(Blanco) Merr.
Ledebouriella is a monotypic genus of flowering plants belonging to the family Apiaceae. It only contains one known species, Ledebouriella multiflora(Ledeb.) H.Wolff.
Neobuchia is a monotypic genus of flowering plants belonging to the family Malvaceae. It only contains one known species, Neobuchia paulinae, commonly known as mapou blanc. It is a tree endemic to Haiti on the island of Hispaniola.
Nichallea is a monotypic genus of flowering plants belonging to the family Rubiaceae. It only contains one species, Nichallea soyauxii.
Saintpauliopsis is a monotypic genus of flowering plants belonging to the family Acanthaceae. It only contains one known species, Saintpauliopsis lebruniiStaner
Drusa is a monotypic genus of flowering plants belonging to the family Apiaceae. It has one known species, Drusa glandulosa.
Landiopsis is a monotypic genus of flowering plants belonging to the family Rubiaceae. It only contains one known species, Landiopsis capuronii.
Sandemania is a monotypic genus of flowering plants belonging to the family Melastomataceae. The only known species is Sandemania hoehnei.
Peterodendron is a monotypic genus of flowering plants belonging to the family Achariaceae. The only species is Peterodendron ovatum.
