Chamaecostus manausensis Maas & H.Maas A plant in habitat Floresta Nacional do Tapajós, Brazil B flower showing the non-fimbriate margin of the labellum C, E inflorescence narrowly cylindric instead of broadly obovoid D sheath and ligules. Photos A–E by Thiago André.

  Part of: Maas PJM, Maas-van de Kamer H, André T, Skinner D, Valderrama E, Specht CD (2023) Eighteen new species of Neotropical Costaceae (Zingiberales). PhytoKeys 222: 75-127.