Which of the following descriptions fits best?

Cerealia type; e.g. Triticum type (T. aestivum)

monoporate, pore with distinct annulus; psilate, roundish pollen grain < 40 µm

monoporate, pore with distinct annulus; roundish psilate pollen grain > 40 µm

single elongated aperture; corrugated to smooth surface ("tangerine segment")

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