''Petersianthus'' is a genus of

woody plant A woody plant is a plant that produces wood as its structural tissue and thus has a hard stem. In cold climates, woody plants further survive winter or dry season above ground, as opposed to Herbaceous plant, herbaceous plants that die back to t ...

in the

Lecythidaceae The Lecythidaceae ( ) comprise a family of about 20 genera and 250–300 species of woody plants native to tropical South America, Africa (including Madagascar), Asia and Australia. Well known members of the family include the cannonball tree ...

family first described as a genus in 1865 under the name ''Petersia''. This turned out to be an illegitimate homonym, meaning that it had already been used by someone else to refer to a very different plant. So the name of these species in the

was changed to ''Petersianthus''. It is native to the Philippines and to parts of Africa.Kew World Checklist of Selected Plant Families
/ref> The following two species belong to this genus, with the

basionym In the scientific name of organisms, basionym or basyonym means the original name on which a new name is based; the author citation of the new name should include the authors of the basionym in parentheses. The term "basionym" is used in both botan ...

s of both taxa belonging to what is known today as the family

Combretaceae The Combretaceae, often called the white mangrove family, are a family of flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, G ...

. ;species # ' (syn. ''Combretum macrocarpum'' ) - Guinea, Ivory Coast, Cameroon, Congo Republic, Democratic Republic of the Congo, Cabinda, Gabon, Angola # ''

Petersianthus quadrialatus ''Petersianthus quadrialatus'' (also called toog and Philippine rosewood) is an Tropical rainforest#Emergent layer, emergent tropical rainforest tree species in the Lecythidaceae family (biology), family. In the Visayas region called kapullan, in ...

'' (syn. ''Terminalia quadrialata'' ) - Philippines

References

Lecythidaceae Ericales genera Taxa named by Elmer Drew Merrill {{Lecythidaceae-stub