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 Middle School 712. The majority of students are Hispanic, with a large white minority and smaller minorities of African Americans and Asian Americans. Royal Oak Middle School Royal Oak Middle School is the only middle school in the Charter Oak Unified School District and is located in the City of Covina, California, in the San Gabriel Valley east of Los Angeles. Royal Oak was a 1996 California Distinguished School Royal Oak Middle School opened in 1985 on the site of the former Royal Oak High School, which opened in 1965. Originally, the middle school served students in sixth through eighth grades. In