After the Ten Year's War seed of Mexican and United States tobaccos was in great demand to re-seed the ruined vegas, and was introduced in great quantities; and although by a later law the destruction of these exotic species was ordered, that destruction was in fact quite impossible.
Mexican tobaccos (Nicotiana Tabacum, variety macrophyllum) are to-day predominant in a large part of Cuban vegas..
From this species the tobaccos of Cuba, the United States, the Philippine Islands and the Latakia of Turkey are derived, and it is also largely cultivated in India; the variety macrophylla is the source of the Maryland tobaccos.
Speaking generally, clay soils retentive of moisture produce heavy-cropping tobaccos which cure to a dark brown or red colour.
Sandy soils produce tobaccos with a thin leaf, curing to a yellow or bright red colour.