Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1920)

The genus Phoradendron - Trelease, William, 1857 -1945 (The University, 1916)

The genus Phoradendron - Trelease, William, 1857 -1945 (The University, 1916)

The genus Phoradendron - Trelease, William, 1857 -1945 (The University, 1916)

The genus Phoradendron - Trelease, William, 1857 -1945 (The University, 1916)

The genus Phoradendron - Trelease, William, 1857 -1945 (The University, 1916)

The genus Phoradendron :a monographic revision - Trelease, William, 1857 -1945 (The University, 1916)

Trees and shrubs of Mexico - Standley, Paul Carpenter, 1884 -1963 (Govt. Print. Off, 1922)