Ultrastructure of scales in and around the scent glands patches of A. virgata A Scent glands patches B Scales (androconia) in the scent glands patches C Ultrastructure of the androconium D Type 1 scales around the scent glands patches E Ultrastructure of type 1 scale around the scent glands patches F Type 2 scales around the scent glands patches G Ultrastructure of type 2 scale around the scent glands patches.