Two new species of Clusia sect. Cordylandra (Clusiaceae) from the brejo de altitude vegetation, plateau of Ibiapaba, Ceara, Brazil

Two new shrubby species of Clusia sect. Cordylandra are described and illustrated. The male flower of Clusia nogueirae presents an androecium forming a conical volcano-like synandrium around a well-developed pistillode covered with resin. The male flower of Clusia ibiapabensis, on the other hand, presents an androecium of free claviform stamens, forming a broad torus-like structure around a well-developed pistillode. The two species occur in regions of brejos de altitude in the plateou of Ibiapaba, Ceara state, northeastern Brazil.