Monad

dispersal unit consisting of a single pollen grain. [107] mono-

prefix meaning one. monoaperturate pollen grain with a single aperture. [80] monocolpate, see sulcate [134]

Comment: superfluous term; as far as known there is no example of a pollen grain with a single colpus (situated equa-torially); in all pollen grains with a single elongated aperture the latter is situated distally (sulcus). monolete, see laesura and tetrad mark monoporate, see ulcerate

Comment: superfluous term; as far as known there is no example of a pollen grain with a single porus (situated equa-torially); in all pollen grains with a single porus the latter is situated distally (ulcus).

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