Genus Betula

dcterms created equal to or less than 2022-06-16T01:42:20.301Zequal to or more than 2022-06-16T01:42:20.301Z
dcterms modified equal to or less than 2022-06-16T02:12:15.364Zequal to or more than 2022-06-16T02:12:15.364Z
notation BetuBet
broader original
Genus-Betula_2 original
definition Distribution: A genus of about 60 species from the Northern Hemisphere; 1 or 2 species sparingly established in Victoria.

Description: This genus is a group of deciduous trees or shrubs. They are monoecious and have bark that is dark brown to chalky white and is smooth.

For more details regarding the description of species within this genus please see:

Pollen Morphology: The pollen grains from this genus have a circular shape in polar view and an elliptical shape in equatorial view. These pollen grains are between 18-25um in size and have 3 pores that are evenly spaced around the equator. These pores protrude slightly from the grain and have thick circular rings around each pore. The surface of the pollen grain is smooth, however the interior (plasma) is finely granular.
Resource original
Concept original
contributor NEII_Programme original
creator NEII_Programme original
in scheme TEST-AusPollen-Aerobiology-Collaboration-Network-Species-Classification original