German botanist (1830-1878).
Gustav Wallis (1 May 1830 – 20 June 1878) was a German plant collector who introduced over 1,000 plant species to Europe, many of which were named after him. He was particularly focused on orchid hunting during the Victorian orchid craze, but also was the first European collector of plants such as large-leaved Anthurium specimens that continue to be among the most sought after today.