Hi kluyts, the seeds of the Juniper tree here in the U.k. are very small they are contained in the berry like fruits which are known as arils. These arils are relatively small being 4-12mm wide. each aril contains 3-6 seeds. Hope this helps. More information is available about the tree on the hub THE JUNIPER TREE AND TWO RELATIVES OF THE PINE FAMILY. Sorry I have no available picture of the actual seeds only those of the arils.