Structural adaptations of aboveground vegetative organs to cangas: A case study with the Amazonian species Carajasia cangae R.M.Salas, E.L.Cabral & Dessein (Rubiaceae), which grows on ferruginous outcrops
The Brazilian ironstone outcrops (cangas) impose challenging conditions for establishing species. Adapted species should exhibit different responses to xeric conditions of cangas. To understand these adaptations, our plant model was Carajasia cangae R.M.Salas, E.L.Cabral & Dessein, an endemic and threatened species res...