As the epithet implies, this species was originally described from the Andes of northern Colombia (Mycologia 79: 674. 1987.), illustrating the folly of using geographic epithets for species discovered in poorly collected regions. The aspect of this mushroom is that of R. caperata, but the lamellae and often the stipe apex are decidedly lilac colored. We have seen R. colombiana at four sites in the Cordillera Talamanca. An excellent discussion of the possible origin and biogeography of Rozites was published by N. L. Bougher et al. (Austral. Syst. Bot. 7:353-375. 1994).