Scottish botanist (1799-1850).
James MacFadyen (1799–1850) was a Scottish medical doctor and botanist who made a significant contribution to the scientific study of the plants of the Caribbean region. Born in Glasgow on 3 May 1799, he was the eldest son of a music publisher and bookseller, John Macfadyen, and his wife Elisabeth. Macfayden was the first to describe the grapefruit scientifically - he gave it its Linnean name, Citrus paradisi - and to describe new species of fig trees and other Caribbean plants. In addition to his contributions to botany, MacFadyen practised medicine and was actively involved in social organi