Synonyms: Ouratea arnoldiana; Ouratea barteri; Ouratea longipes (heterotypic); Ouratea quintasii; Ouratea staudtii; Ouratea vanderystii; Rhabdophyllum arnoldianum quintasii; Rhabdophyllum arnoldianum staudtii; Rhabdophyllum arnoldianum var. arnoldianum; Rhabdophyllum arnoldianum var. quintasii; Rhabdophyllum arnoldianum var. staudtii; Rhabdophyllum barteri; Rhabdophyllum longipes; Rhabdophyllum quintasii; Rhabdophyllum staudtii; Rhabdophyllum thollonii; Rhabdophyllum viancinii; Spongopyrena staudtii