Simão, I., Reyes-Betancort, J.A., Talhinhas, P., Morais-Cecílio, L. & Silveira, P. (2024) SIMÃO, I., REYES-BETANCORT, J.A., TALHINHAS, P., MORAIS-CECÍLIO, L. & SILVEIRA, P. (2024) Taxonomic revision of the genus Calendula (Asteraceae) in the Canary Islands. Phytotaxa 640 (2): 125–160. Phytotaxa 642 (4): 299–299. https://doi.org/10.11646/phytotaxa.642.4.11