Thorild Wulff (born 1 April 1877 in Gothenburg; died late August or early September 1917 in Northwest Greenland) was a Swedish botanist and polar explorer.
He obtained his doctorate degree from Lund University in 1902 based on observation he had made during a Swedish-Russian geodesy expedition to Svalbard.
Wulff was research assistant in horticulture ("Centralanstalten för försöksväsendet på jordbruksområdet") 1905–09, docent of botany at Stockholm University College 1909–13. In 1911 he travelled to Iceland with his friend the author Albert Engström who gave an account of the journey ("Åt Häcklefjäll" 1913).
He participated in the Second Thule Expedition led by Knud Rasmussen from Thule to Cape Bridgman in the northeastern corner of Peary Land. On the return trip, the expedition suffered from bad weather and insufficient supplies, resulting in casualties, one of them being Wulff. He died from fatigue near Cape Agassiz off the Humboldt Glacier.
The Greenlandic plant species Braya thorild-wulffii (Brassicaceae) was named after him in 1923. The Wulff Land peninsula in Northern Greenland is similarly named for him.
Knud Johan Victor Rasmussen was a Greenlandic–Danish polar explorer and anthropologist. He has been called the "father of Eskimology" and was the first European to cross the Northwest Passage via dog sled. He remains well known in Greenland, Denmark and among Canadian Inuit.
Nils Adolf Erik Nordenskiöld was a Finland-Swedish aristocrat, geologist, mineralogist and Arctic explorer. He was a member of the Fenno-Swedish Nordenskiöld family of scientists and held the title of a friherre (baron).
Alfred Gabriel Nathorst was a Swedish Arctic explorer, geologist, and palaeobotanist.
Prof Otto Martin Torell HFRSE was a Swedish naturalist and geologist.
Lorenz Peter Elfred Freuchen was a Danish explorer, author, journalist and anthropologist. He is notable for his role in Arctic exploration, namely the Thule Expeditions.
Harald Viggo Moltke was a Danish painter, author and explorer. Among his activities Moltke, participated as draftsman in four Arctic expeditions.
Carl Emil Hansen Ostenfeld was a Danish systematic botanist. He graduated from the University of Copenhagen under professor Eugenius Warming. He was a keeper at the Botanical Museum 1900–1918, when he became professor of botany at the Royal Veterinary and Agricultural University. In 1923, by the early retirement of Raunkiær's, Ostenfeld became professor of botany at the University of Copenhagen and director of the Copenhagen Botanical Garden, both positions held until his death in 1931. He was a member of the Royal Danish Academy of Sciences and Letters and served on the board of directors of the Carlsberg Foundation.
Thorvald (Thorwald) Julius Sørensen was a Danish botanist and evolutionary biologist.
Sven Berggren was a Swedish botanist, explorer and university professor. He was a professor at Lund University 1883–1902, later at Uppsala University. He was elected a member of the Royal Swedish Academy of Sciences in 1880.
Christian Friedrich Hornschuch was a German botanist born in Rodach, Bavaria.
Oskar Eric Gunnar Hultén was a Swedish botanist, plant geographer and 20th century explorer of The Arctic. He was born in Halla in Södermanland. He took his licentiate exam 1931 at Stockholm University and obtained his doctorate degree in botany at Lund University in 1937. In his thesis, he coined the term Beringia for the ice-age land bridge between Eurasia and North America. From 1945 to 1961, he was a professor and head of the Botany Section at the Swedish Museum of Natural History. In 1953, he was elected to the Royal Swedish Academy of Sciences as member number 977.
Jens Wilhelm August Lind was a Danish apothecary, botanist and mycologist. He was a pupil of Emil Rostrup and published a full account of all fungi collected in Denmark by Rostrup. These were mainly microfungi, such as plant pathogens. He also wrote accounts on microfungi from Greenland and elsewhere, mainly based on collections made by other persons on expeditions, e.g. Gjøa expedition and the Second Thule Expedition. Combining his pharmaceutical and mycological knowledge, he was early in experimenting on chemical control of plant pathogens and recommending it to other practitioners. He also - together with Knud Jessen - wrote an account on the immigration history of weeds to Denmark.
Axel Hamberg was a Swedish mineralogist, geographer and explorer.
Hermann Joseph Fritz Römer was a German zoologist.
Ernst Vanhöffen was a German zoologist.
Alexander Gustav von Schrenk was a Russian naturalist born near Tula in what was then the Russian Empire. He was a brother to zoologist Leopold von Schrenck (1826–1894).
Wulff Land is a peninsula in far northwestern Greenland. Administratively it is a part of the Northeast Greenland National Park.
Nils Johan Teodor Odhner was a Swedish zoologist. Odhner was born in Lund, Sweden. He was the son of the historian Clas Theodor Odhner and the father of the agronomist Clas-Erik Odhner.
Centrum Island is a small island in North Greenland, south East of the John Murray Island, and West of J.P. Koch Fjord. The island is described as 'inconspicuous and fladt'.