O'Dowd, Dennis J. (1 January 1980). "Pearl Bodies of a Neotropical Tree, Ochroma pyramidale: Ecological Implications". American Journal of Botany. 67 (4): 543–549. doi:10.2307/2442294. JSTOR2442294.
O'Dowd, Dennis J. (1 January 1980). "Pearl Bodies of a Neotropical Tree, Ochroma pyramidale: Ecological Implications". American Journal of Botany. 67 (4): 543–549. doi:10.2307/2442294. JSTOR2442294.