Figueiredo E, Smith GF, Silveira P.

The nomenclature of two names proposed for Portuguese taxa of Calendula (Asteraceae) by Lange in 1883

. Phytotaxa [Internet]. 2018 Jul. 10 [cited 2025 Dec. 6];360(1):85–88. Available from: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.360.1.12