Mariano Lagasca

Mariano Lagasca y Segura (1776–1839), also known as Mariano la Gasca, was a Spanish botanist, writer and doctor. He was the director of the Real Jardín Botánico de Madrid (Royal Botanical Garden of Madrid).

Early life Mariano Lagasca y Segura was born in Encinacorba, Province of Zaragoza, in Spain on 4 October 1776 to a wealthy Catholic family. He studied at the local elementary school and, afterwards, he continued his ecclesiastical studies in Tarragona. During his studies in Tarragona, he developed an interest for medicine and botany. After finishing his studies in Tarragona, he started travelling until eventually studying medicine at first in Zaragoza, and later in Valencia and Madrid.

In 1802, he co-published with Simón de Rojas Clemente y Rubio a volume of articles regarding medicine and botany. After the death of José Cavanilles in 1807, he was appointed to the position of the vice-director of the Royal Botanical Garden of Madrid. During that period, he was also working as a professor of Botany at the university of Madrid.

In the following years, he would become well known in Spain, because of his work at that position. In 1823, he was exiled from Spain because of his liberal political views. He spent the following eleven years in London, until his return to Spain in 1834 where he regained his position as a director of the Royal Botanical Garden of Madrid. He died five years later, on 23 June 1839, in Barcelona.

In 1827, he edited and printed his herbarium work Hortus siccus Londinensis; or a collection of dried specimens of plants, growing wild within twenty miles round London, named on the authority of the Banksian herbarium, and other original collections which might be an exsiccata-like series with duplicate specimens.