Which species is this pollen from?
Myriophyllum spicatum Ulmus; e.g. U. glabra Alnus sp.; e.g. A. glutinosa Carpinus type; e.g. betulus
Myriophyllum spicatum
Ulmus; e.g. U. glabra
Alnus sp.; e.g. A. glutinosa
Carpinus type; e.g. betulus
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