Ulmus americana – American Elm

Bloom Time March – April

Pollen Characteristics

Dispersal Unit Monad

Aperture Number 4

Aperture Type Colpus

Ornamentation Psilate/Granulate

Tectum Eutectate

Size (um)

Shape Round

Pollen Color Yellow, Green

Pollen Source • •

Nectar Source •

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