de Leonardis, Walter, Rosina Matarese Palmieri, Michelangelo Rossitto, and Antonina Zizza. 1989. “Contribution to the Knowledge of the Endemic Taxa of Sicily through the Pollen Morphobiometric Analysis”. Acta Botanica Malacitana 14 (December):117-28. https://doi.org/10.24310/abm.v14i.9344.