A gardener for the Earl of Aberdeen and later at Kew, Dallachy went to Ceylon as a plantation manager in 1847. Appointed Superintendent of the Melbourne Botanic Garden, Victoria, 1849-1857. Thereafter an assiduous collector for Mueller, from 1857-1862 in Victoria, and from 1862-1871 in northern Queensland, particularly in the Rockingham Bay region. Some ambiguities in his citation of locality names were resolved by Blake (1954). His collections are now in MEL, with duplicates at B, BM, KIEL and W.
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]