Vineyards of Spanish America: one black grape, and the law that tried to stop it

Spain planted essentially one black grape in the Americas - Listan Prieto, called Criolla Chica in South America and Mission in California - and it carried American wine for three centuries. Acosta in 1590 measured the boom by the tithes of Peru, five or six times what they had been twenty years before. The Crown's own law concedes that planting vines in the Indies was forbidden, that Peru planted anyway, and settles for two per cent of the fruit.