Oak apple due to the superficial resemblance and the preponderance of the oak marble gall in the wild. Other galls found on oak trees include the oak artichoke gall and the acorn cup gall, but each of these has its own distinctive form. Some common oak-apple-forming species are the "Biorhiza pallida" gall wasp in Europe, "Amphibolips confluenta" in eastern North America, and "Atrusca bella" in western North America. Oak apples may be brownish, yellowish, greenish, pinkish, or reddish. Oak galls have been used in the production of ink since at least the time of the Roman Empire. From the Middle Ages to
Royal Oak, New Zealand Royal Oak refers to the tree Charles II hid up during the Battle of Worcester to avoid capture. In the middle of the Royal Oak Roundabout was once located the Seddon Memorial. Designed by John Park, a local architect who was also Mayor of Onehunga at one time, the structure was erected in memory of Prime Minister Seddon who died suddenly in office in 1906. Richard John Seddon (1845 - 1906) was immensely popular and there are several monuments to him around the country. The Royal Oak Monument was in the form of a Gothic Market Cross and was a