Glossary

Pollen Atlas Glossary

Dicolpate

pollen grain composed of two colpi.

Dicolporate

pollen grain with aperture compound of two apertures made up of colpus and pore.

Dimorphic

pollen with different size, number of apertures or sculptural elements etc..

Diorate

pollen grain composed of two pori in one colpus.

Diporate

pollen grain with two pori in the equatorial belt.

Distal pole

focus point in the polar region of the pollen (referring to the position taken in the anther techa).

Duplibaculate

sporoderm reticulum with two rows of bacula under the muri.

Dyade

pollen unit formed by two still joined pollens.

Bibliography:
Bucher E., Kofler V., Vorwhol G., Zieger E., 2004 – Lo spettro pollinico dei mieli dell’Alto Adige. Azienda provinciale per la protezione dell’ambiente e la tutela del lavoro-Laboratorio biologico 676 pp
Ciampolini F., Cresti M., 1981 – Atlante dei principali pollini allergenici presenti in Italia. Università di Siena 190 pp.
Von der Ohe K., von der Ohe W., 2000 – Celler melissopalynologische sammlung CMS . Celle’s Melisopalynological Collection. Niedersachsisches Landesinstitut fur Bienenkunde.