Noções botanicas das especies de Nicociana mais usadas nas fabricas de tabaco, e da sua cultura

The book offers a detailed botanical overview of the Nicotiana species most commonly employed in tobacco factories. It explains how the genus fits into the Solanaceae family, using the classification systems of Jussieu and Linnaeus, and provides clear, illustrated descriptions of leaf shape, flower structure, and seed form. Readers get concise botanical terminology alongside practical notes on plant habit, root systems and variations across climates.

Beyond taxonomy, the author devotes attention to cultivation, describing how soil, temperature and regional conditions affect growth, height, and leaf texture. The work includes observations from European gardens and tropical origins, offering guidance on planting, pruning and harvesting for optimal tobacco quality. Though written in early‑19th‑century Portuguese, the systematic approach remains useful for historians, horticulturists and anyone curious about the science behind the leaf that shaped economies.