Leading taxonomic botanist in the U.S.A. during the 19th century, and Fisher Professor of Natural History at Harvard from 1842. Never visited Australia, but described the plants of the United States Exploring Expedition... under the command of Charles Wilkes (1854), which visited Tasmania and Sydney, New South Wales, in 1839. The botanist on the voyage was W.D.Brackenridge. Gray's main herbarium and Types are at GH, but duplicates are widely scattered.
Extracted from: A.E.Orchard (1999) A History of Systematic Botany in Australia, in Flora of Australia Vol.1, 2nd ed., ABRS. [consult for source references]