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J. L.  Luyteyn, Judd, W. S., Kloet, S. P. Vander, Dorr, L. J., Wallace, G. D., Kron, K. A., Stevens, P. F., and Clemants, S. E., ?Ericaceae of the Southeastern United States?, Castanea, vol. 61, pp. 101 - 144, 1996.

G. D.  Wallace, ?Ericaceae - Part II: I.Ericaceae subfamily Monotropoideae?, Fl. Neotrop. Monogr., vol. 66, pp. 13 - 27, 1995.

G. D.  Wallace, ?Transfer of Eremotropa sciaphila to Monotropastrum (Ericaceae, Monotropoideae)?, Taxon, vol. 36, pp. 128 - 130, 1987.

G. D.  Wallace, ?Studies of the Monotropoideae (Ericaceae). Taxonomie and distribution?, Wasmann J. Biol., vol. 33, pp. 1 - 88, 1975.