Tepuia tatei pollen (from Luteyn & Steyermark 9595).  Top: polar view of tetrad;  middle: equatorial view;  bottom: close-up of exine (top and middle bar = 10 µm; bottom bar = 1 µm).  Redrawn from Flora Neotropica Monographs 66: 356, fig. 4D-F.  1995.