File:Mann W Wheeler W 1942h.pdf

Wheeler, W. M.; Mann, W. M. 1942h. [Untitled. Azteca ulei Forel var. gagatina Wheeler and Mann var. nov.]. P. 246 in: Wheeler, W. M. Studies of Neotropical ant-plants and their ants. Bull. Mus. Comp. Zool. 90:1-262.