Julius Rudolph Theodor Vogel
He was born in Berlin, and studied at the Friedrich-Wilhelms-Gymnasium. He learned botany from Johann Friedrich Ruthe. In 1837 he graduated Ph.D. from the University of Berlin with a dissertation on the genus Cassia. He was a privatdozent at Berlin and then from 1839 at the University of Bonn, where he took over duties after the death of Theodor Friedrich Ludwig Nees von Esenbeck. He worked particularly on Brazilian plants, and collaborated with Matthias Jakob Schleiden. In 1840 he worked on the collections of Franz Meyen who had just died.
At the end of 1840 he travelled to England to meet the African Civilization Society, then planning the Niger expedition of 1841. Taking two years' leave from Bonn, he joined the expedition in May 1841, on the steamer Wilberforce. He wrote letters from Sierra Leone and Accra, and left a journal of the expedition. Suffering from fever, he died on Fernando Po (now Bioko) of dysentery, on 17 December 1841.
His author abbreviation is Vogel.
- Biographical sketch by Gottfried Reinhold Treviranus, translated by Miles Joseph Berkeley. In William Jackson Hooker; Theodore Vogel; Philip Barker Webb; Joseph Dalton Hooker, George Bentham (1849). "Memoir of the life of Dr. J. R. T. Vogel". Niger flora: or, An enumeration of the plants of western tropical Africa. H. Baillière. pp. 1–21. Retrieved 19 February 2011.
- Hooker, p. 73; Google Books.
- Botanic research in Liberia by Lex Voorhoeve.