Sutherland, Cirilo Nelson. “Type Material from the Sessé and Mociño Collection in the Madrid Royal Botanic Gardens”. Anales del Jardín Botánico de Madrid 55, no. 2 (December 30, 1997): 375–418. Accessed April 19, 2024. https://rjb.revistas.csic.es/index.php/rjb/article/view/282.