An unusual new species of Guatteria (Annonaceae) from French Guiana and adjacent Brazil (Amapá)

SUMMArY During a taxonomic treatment of Annonaceae for the flora of the Guianas project, an unusual new species of Guatteria ruiz & Pav., G. anteridifera from french Guiana and Amapa in Brazil (Northern South America) was found and described herein.