Photograph by R. E. Halling, © 1997
The distinguishing features mentioned by the describing authors include the honey colored pileus, lamellae that bruise yellow and eventually become cinnamon, and undulous pileus margin. It belongs in section Rhodocybe because of the presence of pseudocystidia (below with basidiospores) and centrally stipitate basidiomata. It was originally described from material gathered at La Selva Biological Station (Mycologia 80: 508-514. 1988). We have seen this taxon further south in the Talamancas near San Vito de Jaba.