FIGURE 2. Pagamea spruceana. A. Leaf with revolute margin B in Pagamea spruceana (Rubiaceae, Gaertnereae), a new species from flooded white-sand forests in the Upper Rio Negro region, Brazil

FIGURE 2. Pagamea spruceana. A. Leaf with revolute margin B. Detail of leaf blade with puberulous margin. C. Capitate inflorescences with buds and flowers. D. Inflorescence with fruits; main axis and cupules reddish orange and green, immature fruits. E. Inflorescence head and distal portion of peduncle. F. Ovary with long style in a functionally pistillate flower. G. Ovary with short style in a functionally staminate flower. H. Stem with dark brown bark. I. Individual of P. spruceana. J. Long-term inundated igapó at Piraiauara River, in the Upper Rio Negro region. Photos by E. Prata.