R. L.  Dressler, ?The Encyclia pygmaea complex, with a new Central American species, Encyclia racemifera?, Lindleyana, vol. 11, pp. 37-40, 1996.

R. L.  Dressler and Pupulin, F., ?Macroclinium allenorum, a new Costa Rican species well illustrated forty years ago?, Lindleyana, vol. 11, pp. 34-36, 1996.