Distribution maps for new species of Costaceae: Chamaecostus – Costus douglasdalyi A Chamaecostus manausensis Maas & H.Maas B Costus alfredoi Maas & H.Maas C Costus alleniopsis Maas & D.Skinner D Costus alticolus Maas & H.Maas E Costus antioquiensis Maas & H.Maas F Costus callosus Maas & H.Maas G Costus cochabambae Maas & H.Maas H Costus convexus Maas & D.Skinner I Costus douglasdalyi Maas & H.Maas.

 
 
  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. https://doi.org/10.3897/phytokeys.222.87779