Author:Asa Gray

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Asa Gray
Fisher Professor of Natural History at Harvard University. Considered the most important American botanist of the 19th century. Instrumental in unifying the taxonomic knowledge of the plants of North America. Gray's Manual has gone through a number of editions with botanical illustrations by Isaac Sprague, and remains a standard in the field.
Asa Gray


  • A Natural System of Botany (1837) external link
  • Conversations on gardening: with incidental notes on natural history (1838) external link
  • A Flora of North America I & II. (1838–1843) with John Torrey
  • Manual of the Botany of the Northern United States, from New England to Wisconsin and South to Ohio and Pennsylvania Inclusive (1848) with William Starling Sullivant external link
  • Genera florae Americae boreali-orientalis illustrata. The genera of the plants of the United States illustrated by figures and analyses from nature with Isaac Sprague (1848) vol 1, vol 2
  • Plantæ Wrightianæ Texano–Neo-Mexicanæ: An Account of a Collection of Plants made by Charles Wright, A. M. in an Expedition from Texas to New Mexico in the summer and autumn of 1849 1&2 (1852) with Charles Wright
  • First Lessons in Botany and Vegetable Physiology (1857) external link
  • How Plants Grow: A Simple Introduction to Structural Botany (1858) external link
  • Natural selection not inconsistent with natural theology (1861) external link
  • Introduction to Structural and Systematic Botany and Vegetable Physiology (1862) external link
  • How Plants Behave (1872)
  • Gray's lessons in botany and vegetable physiology (1873) external link
(revised) The elements of botany for beginners and for schools (1887) external link

Articles in Popular Science Monthly[edit]

Works about Gray[edit]

Works by this author published before January 1, 1923 are in the public domain worldwide because the author died at least 100 years ago. Translations or editions published later may be copyrighted. Posthumous works may be copyrighted based on how long they have been published in certain countries and areas.