Pseudocolpus

A pseudocolpus is a colpus in hetero-aperturate pollen grains and is presumed as non-functional. Pseudocolpi are always associated with colpori, never with colpi. Pseudocolpi mostly alternate with colpori (e.g., in Boraginaceae, Lythraceae) or are situated on both sides of a colporus (in Acanthaceae). Since germination experiments for pseudocolpi are absent, it cannot be assumed that pseudocolpi act as germination sites. Without doubt they play a role in harmomegathy, but their effects have been poorly studied; for examples see "Illustrated Glossary".

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