Arthur Harry Church F.R.S. (28 March 1865 – 24 April 1937) was a British botanist.
Church was born in Plymouth, the son of a saddler, and went to school locally. In 1887 his mother died and, with his inheritance of £100, he went to University College of Wales, Aberystwyth. With a first (London external) degree in Botany he won in 1891 a scholarship to Jesus College, Oxford, obtaining a first-class Oxford degree in botany in 1894. He was a Research Fellow of Jesus College from 1908 to 1912 and University Reader in Botany from 1910 to 1930. He was elected as a Fellow of the Royal Society in 1921. His particular fields of interest were phyllotaxy, the development and arrangement of parts of the flower and one-celled sea plants.[1] He was a fine illustrator and photographer, sometimes illustrating his own publications.[2]
He married Emma Palmer Pratt of Aberystwith. They had three daughters. Each daughter was given as her middle name the name of a plant in flower at the time of her birth: Audrey Althea (hollyhock), Rosemary Doronica (leopard's-bane) and Grace Coryla (hazel).