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 station (SkyTrain) Royal Oak station (SkyTrain) Royal Oak is an elevated station on the Expo Line of Metro Vancouver's SkyTrain rapid transit system. The station is located at the intersection of Beresford Street and Royal Oak Avenue in Burnaby, British Columbia, a short walk south of Kingsway and Imperial Avenue. Royal Oak station was built in 1985 as part of the original SkyTrain system (now known as the Expo Line). In 2002, Millennium Line service was introduced to the station, which provided outbound service to VCC–Clark (originally Commercial–Broadway) via Columbia station in New Westminster. This service was discontinued and replaced with the