Peter James de Lange (born 1966) is a New Zealand botanist at Unitec Institute of Technology. He is a Fellow of the Linnean Society, and has received the New Zealand Botanical Society Allan Mere award and the Loder Cup for his botanical work. Two species are named in his honour.
De Lange is a Fellow of the Linnean Society, recipient of the New Zealand Botanical Society Allan Mere award (2006) and also the Loder Cup (2017) for his botanical work. One plant, the Three Kings Islands endemic kawakawa (pepper) described in 1997 as Macropiper excelsum subsp peltatum f. delangei and now placed in Piper, as P. excelsum subsp. delangei is named in his honour. In February 2021 a lichen, Amandinea delangei was also named in his honour based on specimens he had collected from Te Wakatehaua, Oneroa-o-Tohe (Ninety Mile Beach), Te Aupouri, Northland, North Island, New Zealand. He is the author of 30 books and 180 scientific papers.[3][4][5]
De Lange has two sons, including one who assists him with research, such as with noting new locations of the threatened lichen Caloplaca maculata D.J.Galloway.
^De Lange (2007). Biosystematics of the New Zealand Kunzea ericoides (A.Rich.) Joy Thomps. complex (Doctoral thesis). ResearchSpace@Auckland, University of Auckland. hdl:2292/51080.