SYSTEMATIC STUDIES IN TURNERA (TURNERACEAE) II. SERIES ANNULARES, CAPITATAE, PAPILLIFERAE AND MICROPHYLLAE
Turnera L.includes around 100 American species and two African ones, arranged in nine series.In this paper, the following four series embracing 21 species are revised: Annulares, Capitatae, Microphyllae and Papilliferae.Six new taxa are described: Thatschbachii, Thatschbachii var.miniata, Jeans Tmaracasana,and T.princeps of the serie