Holotype specimen of Pisonia roqueae from the National Herbarium of the Smithsonian Institution (Proctor et al. 48064, US [00707324]). Note the dendroid staminate inflorescences with globose crowns and the leafless branches during the flowering period. Photo courtesy of The United States National Herbarium, Smithsonian Institution.

 
 
  Part of: Caraballo-Ortiz MA, Trejo-Torres JC (2017) Two new endemic tree species from Puerto Rico: Pisonia horneae and Pisonia roqueae (Nyctaginaceae). PhytoKeys 86: 97-115. https://doi.org/10.3897/phytokeys.86.11249