What is "balmea"

Balmea is a monospecific genus of flowering plants in the family Rubiaceae containing the single species Balmea stormae. It is native to El Salvador, Guatemala and Mexico ( Nayarit, Jalisco, Colima, Guerrero, Michoacán, Chiapas). It is locally known as ayuque. It is conical in shape and used as a Christmas tree in parts of Mexico. Because populations are depleted by this overharvest, this species is threatened with extinction.