Ceylon, Friendly Islands, Australia and Tasmania collected by Harvey are in store in the Ulster Museum Herbarium (BEL), almost 90 of which are in the 5th volume of the William Thompson collection in the Ulster Museum, catalogue numbers: F8848–F8937. However his primary collection is still in the TCD Herbarium attached to Botany School building of Trinity College. There are also collections of Harvey's specimens in: The former botany department of University College, Cork, Ireland; West Chester, Pennsylvania, US; National Herbarium of Victoria (MEL), Melbourne, Australia; National Herbarium of New South Wales (NSW), Sydney, Australia and the Herbarium of St. Andrews University (STA). In Harvey's era naturalists often relied upon the exchanging of specimens with other scientists and contributions by amateur collectors. His 1841 Manual of the British Algae was dedicated to British beachcomber, Amelia Griffiths. In his Phycologia Britannica Harvey often notes the "distribution" of each species giving the name of the collector who reported the record. In the Preface of Vol. 1 he lists 19 people to whom he is indebted. These include: Rev Pollexfen and Dr McBain for Orkney algae. The others are: Rev Hore, Dr Cocks, Mr Rohloff, Mr Boswarva, Miss White, Miss Magdalene Turner, Miss Warren, Miss (Anne) Ball, Miss (Isabella) Gifford(4), Miss Cutler (1), Mrs Gatty, Mrs Gulson (?–1871)(5), Mrs Hayden, Rev Dr Landsborough, Dr Dickie (2), Mr Ralfs and Mr Cresswell. Others noted in volume 1 include: Mr Winch, Mr McCalla (c.1814–1849)(3), Mr Wigg, Mr Borrer, Miss Hutchins, Mr John Templeton, Mr T.N.Cole, Rev Clouston, Rev H. Davies, Mr Stackhouse, Mrs Ovens, Mr W. Backhouse, Dr James, Dr. P. Neill and others. Harvey recognised Turner's help and named Cladophora magdalenae Harv. in her honour. Harvey also honoured Susan Fereday's contribution to his work by naming the species Dasya feredayae and Nemastoma feredayae after her. This botanist is denoted by the author abbreviation Harv. when citing a botanical name. Specimens in Ulster Museum Herbarium (BEL) Specimens of some of these collectors are to be found in the Ulster Museum Herbarium (BEL): Miss Cutler: BEL catalogue numbers:— F5646; F5400; F5399; F5358; F5336; F5335 and F5511. Professor George Dickie (1812–1882): BEL catalogue numbers:— F2651; F2462 and F2696. William McCalla many specimens in Ulster Museum. Miss Isabella Gifford (1823?–1891): BEL catalogue numbers:— Ulster Museum Collection No. 15. Mrs Gulson (?–1871): BEL catalogue numbers:— F5369; F5419; F5410; F5370; F5737; F5522; F5810; F5810; F5737; F5713; F5523; F5522; F5506; F5720; F5719;