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Botany · Ch 11 — Science of Plants – Botany

Historical Development of Botany

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Historical Development of Botany

Ancient Foundations: Parasara in India

Long before Botany was named as a Western science, ancient Indian scholars had already begun systematically recording plant knowledge. One of the earliest such figures was Parasara, an ancient Indian scholar credited with two treatises on plant life: Vrikshayurveda, which described the life processes of trees and plants, including their diseases and possible treatments, and Krishi-Parasara, which dealt with the practical side of cultivation and agricultural practice. Together these works show that a structured, written understanding of plant biology and cultivation existed in India well before the term "Botany" itself was coined in the West — an important reminder that the history of plant science is not confined to a single culture or region.

Theophrastus: The "Father of Botany"

In the Greek tradition, the scholar most credited with founding Botany as an organised subject is Theophrastus, a student of Aristotle who lived around 300 BCE. Rather than treating plants only in terms of their medicinal use, Theophrastus attempted to describe and classify plants systematically based on their form and habit — as trees, shrubs, or herbs — making him the first to approach plants as a subject of study in their own right. His major work, Historia Plantarum ("Enquiry into Plants"), catalogued hundreds of plant species with descriptions of their structure and growth, and earned him the title "Father of Botany."

Herbalists: The Medicinal Plant Tradition

Alongside this more descriptive, classificatory tradition ran another important strand: the Herbalists. These were practitioners, often over many centuries, who studied and used plants specifically for their medicinal and curative properties. Rather than being professional scientists in the modern sense, herbalists built up practical, experience-based knowledge of which plants could treat which ailments, and this body of herbal knowledge became an important early source of what we now call medicinal botany and pharmacognosy.

Linnaeus and the Birth of Modern Naming

The next major leap came from the Swedish naturalist Carolus Linnaeus, whose central contribution was to give Botany a stable, universal naming system. Before Linnaeus, plant names were long, descriptive Latin phrases that varied from author to author, making communication between scholars difficult. Linnaeus introduced binomial nomenclature — naming every plant with just two Latin words, a genus name followed by a species name — in his landmark 1753 work Species Plantarum. This simple but powerful system, still used today, is why Linnaeus is regarded as the father of modern plant taxonomy.

Mendel: Unlocking the Rules of Heredity

While Linnaeus organised how plants were named, Gregor Mendel, an Austrian monk, uncovered the hidden rules by which plant traits are passed from one generation to the next. Through careful, quantitative breeding experiments on the garden pea plant conducted over several years, Mendel discovered the basic laws of inheritance — that traits are passed on in predictable, countable ratios rather than by simple blending. Because this work laid the entire foundation of the modern science of genetics, Mendel is honoured as the "Father of Genetics." …