A-R. E. diosmifolia, A-C. A, tetrad in proximal with narrow colpori of neighboring pollen grains, B, tetrad in lateral view with narrow colporus, C, proximal pole with fossulate exine ornamentation; E. discolor, D-F. D, tetrad in proximal face, exine with psilate “belts” at the poles and along the colpi, E, tetrad in lateral view with narrow, opened colporus, F, narrow, opened colporus and exine ornamentation; E. erigena G-I. G, tetrad in proximal face, H, tetrad in lateral view with narrow, opened colporus, I, narrow, closed colporus; E. hirtiflora, J-K. J, two tetrads in proximal face and lateral view, K, tetrad in proximal face with narrow colpori; E. hispidula, L-M. L, tetrad in proximal face, granulate-fossulate exine ornamentation, M, granulae and fossulae with very numerous microgranules; E. imbricate, N-R. N, three tetrads in proximal and distal face, O, two tetrads in proximal face and lateral view, P, narrow, closed colporus, R, proximal pole, granulate-fossulate exine ornamentation with very numerous microgranules.
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