E. D.  Merrill, ?Additions to our knowledge of the Philippine Flora, I?, Philippine Journal of SciencePhilippine Journal of Science, vol. 26, pp. 453-457, 1925.

E. D.  Merrill, ?Additions to our knowledge of the flora of Hainan?, Journal of the Arnold ArboretumJournal of the Arnold Arboretum, vol. 6, pp. 131-132, 1925.