单位是百万巴黎自然史博物馆Museum of Natural History, Paris6.5英国皇家植物园Royal Botanic Gardens, Kew>5荷兰莱登植物园Komarov Botanical Institute, Leningrad>5日内瓦保育植物园Conservatory and Botanical Garden, Geneva4.5哈佛大学联合标本馆Combined Herbaria, Harvard University, Cambridge4.5纽约植物园New York Botanical Garden, Bronx4.3美国史密森国家标本馆U.S. National Herbarium(Smithsonian), Washington, D.C.4.1伦敦大英自然史博物馆British Museum of Natural History, London4里昂大学University of Lyon, Lyon3.8维也纳自然史博物馆Natural History Museum, Vienna3.5美国密苏里植物园Missouri Botanical Garden, Saint Louis2.9芝加哥自然史博物馆Field Museum of Natural History, Chicago2.4University of Uppsala, Uppsala2.2比利时国家植物园National Botanic Garden of Belgium, Brussels...