Monographs Details: Chimantaea
Authority: Carlquist, Sherwin. 1957. Anatomy of Guayana Mutisieae. Mem. New York Bot. Gard. 9 (3): 441-476.
Discussion:Although not conspicuously different from those of the above genera, the pollen
grains of Chimantaea have somewhat more prominent spines and greater exine
thickness. While some species are spinulose, such as C. rupicola (fig. 93 A, B),
others are more nearly psilate, such as C. similis (Fig. 93 C). The variation in
shape of pollen grains is approximately that found in Stenopadus, ranging from
subprolate to prolate sphaeroidal. In size, the pollen grains of Chimantaea also
fall within the range found in Stenopadus.