Tocoyena is a genus of plant in the family Rubiaceae.REVISION OF TOCOYENA (RUBIACEAE: GARDENIEAE) FROM THE STATES OF GOIÁS AND TOCANTINS AND A NEW SPECIES ENDEMIC TO WHITE-SAND AREAS IN THE BRAZILIAN CERRADO. Piero G. Delprete, Journal of the Botanical Research Institute of Texas, 9 December 2008, Vol. 2, No. 2, pages 983-993 (article)
Species Tocoyena contains the following species (incomplete list): Tocoyena atlantica R. Borges & Gaem Tocoyena brasiliensis Mart. Tocoyena bullata (Vell.) Mart. Tocoyena foetida Poepp. & Endl. Tocoyena formosa (Cham. & Schltdl.) K. Schum. Tocoyena guyanensis K. Schum. Tocoyena pittieri (Standl.) Standl. Tocoyena selloana Schum. Tocoyena sellowiana (Cham. & Schltdl.) K. Schum.
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