S. F.  Blake, ?A preliminary revision of the North American and West Indian avocados (Persea spp.)?, Journal of the Washington Academy of Sciences, vol. 10, pp. 9-21, 1920.

S. F.  Blake, ?The anay, a new edible-fruited relative of the avocado?, Journal of the Washington Academy of Sciences, vol. 9, pp. 457-462, 1919.