Vincenzo Bertolino — Le orchidee di Monte Pellegrino

. Palermo, Il Brigantino. In 8vo, paperback, pp. 90 in color with some line drawings. ISBN: 978-88-96624-00-5 In here, there are descriptions and illustrations of all 39 species of orchids that live upon Pellegrino Mountain, a promontory that dominate Palermo City which is well known for his high naturalistic relevance. see: http://it.wikipedia.org/wiki/Riserva_naturale_orientata_Monte_Pellegrino