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LM (A) and SEM (B–I) micrographs of Tapinanthus bangwensis (WU: from Liberia, collector unknown, WU s.n.). A. Two pollen grains in equatorial and polar view. B–D. Pollen grains in polar view. E. Close-up of colpus and membrane. F. Close-up of central polar area. G. Close-up of apex. H, I. Close-ups of mesocolpium. Scale bars – 10 µm (A–D), 1 µm (E–I).
