Escobar García P, Hille A, Lucas E, Rainer H. The Otto C. Berg types at the Natural History Museum, Vienna. Phytotaxa [Internet]. 2015 Sep. 30 [cited 2025 Dec. 5];228(1):1–66. Available from: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.228.1.1