Pierre Edmond Boissier (25 May, 1810, Geneva – 25, September, 1885, Valeyres-sous-Rances) was a prominent Swiss botanist and explorer. He was the son of Jacques Boissier (1784-1857) and Caroline Butini (1786-1836), daughter of Pierre Butini (1759-1838), a well-known naturalist from Geneva. With his sister, Valérie Boissier (1813-1894), he received a strict education with lessons delivered in Italian and Latin. Edmond's interest in natural history stemmed from holidays in the company of his mother and his grandfather, Pierre Butini at Valeyres-sous-Rances. His hikes in the Jura and the Alps laid the foundation of his later zest for exploration and adventure. He attended a course at the Academy of Geneva given by Augustin Pyramus de Candolle.
Edmond Boissier collected extensively in Europe, North Africa and western Asia, on occasion accompanied by his daughter, Caroline Barbey-Boissier (1847-1918) and her husband, William Barbey (1842-1914), who collected in their own right for their Herbier Barbey-Boissier in Geneva.
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