National Geographic : 1939 Jan
RIO GRANDE CORNUCOPIA UNDER A WINTER SUN © National Geographic Society Uutaycolor I'hotograph by i;. Antnony atewart PAPAYA AND BOUGAINVILLAEA ARE TROPIC IMMIGRANTS IN TIIE TEXAS "MELTING POT" Plants native to the Rio Grande Delta can survive with little rainfall, but under irrigation the region has welcomed many foreign varieties. Tall papaya trees, with their melonlike fruits, were at home in Mexico, and the handsome bougainvillaea vine comes from South America. Plant immigrants of economic value are oranges from Brazil, Palestine, and California; grapefruit from the West Indies and Florida; vegetables from the north; and tropical fruits from the south.