Glossary

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Displaying 4 records found for   A
Term Meaning
Annulus A thickening around the pore.
Aperturation Description of the types of openings (apertures) through which the pollen tubes emerge from a pollen grain.
Archi (sing. Arcus) Thickened bands extending between apertures in archs.
Aspidate Palynomorph with a protruding pore or pores.