Callahan County was formed by the Texas legislature in 1858 from Bexar, Bosque, and Travis counties and named for James Hughes Callahan, a survivor of the Goliad Massacre and leader of the Callahan expedition.
DESCRIPTION Back To: Menu Bar. Mango trees are deep-rooted, symmetrical evergreens that attain heights of 90 feet and widths of 80 feet. Mango trees have simple alternate lanceolate leaves that are 12 to 16 inches in length and yellow-green, purple, or copper in color when young.Mature leaves are leathery, glossy, and deep green in color.New leaves arise in terminal growth flushes that occur several times a year.ango trees have simple alternate lanceolate leaves that are 12 to 16 inches in length and yellow-green, purple, or copper in color when young. Mature leaves are leathery, glossy, and deep green in color. New leaves arise in terminal growth flushes that occur several times a year.
Often called âthe king of fruits,â mango grows throughout the tropics and subtropics and is one of the worldâs most important fruit crops. Pathogen Oidium mangiferae Berthet (a fungus), causing powdery mildew of mango, is widely distributed throughout the Pa-cific region. It infects panicles, fruits, and leaves.ymptoms on leaves On some cultivars, new flushes of growth and younger leaves are highly susceptible and may curl up and become distorted. Older leaves are more resistant to infection. Grayish, necrotic lesions or large, irregularly shaped spots may form on leaves (photo below, center).