{{Short description|English clergyman and botanist (1805–1889)}} {{Use British English|date=December 2022}} {{Use dmy dates|date=September 2019}}
'''William Allport Leighton''' (17 May 1805 – 28 February 1889) was an English Church of England clergyman and botanist.
==Life== He was the only son of William and Lucy Maria Leighton. His mother was the daughter and coheiress of John Allport of Prescot, near Baschurch, Shropshire. His father was the keeper of the Talbot Hotel in Shrewsbury, and the son was born there on 17 May 1805. He went to school at the Unitarian Manse on Claremont Hill, Shrewsbury, with Charles Darwin, who first encouraged him to be interested in plants.<ref name="Rookmaaker-Leighton">{{cite web |last1=Rookmaaker |first1=Kees |last2=Leighton |first2=William Allport |title=Recollections of Charles Darwin |url=http://darwin-online.org.uk/content/frameset?itemID=CUL-DAR112.B94-B98&viewtype=text&pageseq=1 |website=Darwin Online |publisher=Syndics of Cambridge University Library |accessdate=24 January 2020}}</ref> He went on to Wolverhampton Grammar School, and in 1822 was articled to a solicitor in Shrewsbury.{{sfn|Jackson|1893}}
On the death of his father he abandoned the study of the law in favour of the church. He matriculated at St John's College, Cambridge, and graduated B.A. in 1833.<ref name="Venn">{{acad|LTN829WA|Leighton, William [Allport]}}</ref> Having been a pupil of John Stevens Henslow, Leighton on his return to his native town deferred ordination in order to draw up a flora of Shropshire. In 1843 he was ordained deacon and priest, and took on clerical duties in Shrewsbury until 1848, when he resigned his curacy at St Giles' Church,<ref name="Venn "/> and thenceforward occupied himself entirely with botany.{{sfn|Jackson|1893}}
Leighton suffered from deteriorating eyesight, and soon after 1879 gave up his studies; he donated his collection to the national herbarium at Kew Gardens. He died at Lucifelde, Shrewsbury, on 28 February 1889, aged eighty-three, and was buried in the Shrewsbury General Cemetery in nearby Longden Road.{{sfn|Jackson|1893}}
==Works== In 1841, he brought out his ''Flora of Shropshire'', the etchings to illustrate some of the genera being his own. He then began working on the cryptogams, and in 1851 the Ray Society published his ''Angiocarpous Lichens elucidated by their Sporidia''. From that date onward Leighton published widely in the literature on lichens, producing as his major work ''Lichen Flora of Great Britain'' in 1871. This reached a third edition in 1879.{{sfn|Jackson|1893}} He was editor of the ''Transactions of Shropshire Archaeological Society'' for many years.<ref name="Venn" /> Leighton issued the exsiccata series ''Lichenes Britannici exsiccati''.<ref>{{cite web |title=Lichenes Britannici exsiccati by the Rev. W.A. Leighton: IndExs ExsiccataID=573576807 |website=IndExs – Index of Exsiccatae |publisher=Botanische Staatssammlung München |url=https://www.botanischestaatssammlung.de/DatabaseClients/IndExs/Exsiccatae_IndExs_Details.jsp?ExsiccataID=573576807 |access-date=19 June 2024}}</ref>
In an 1854 work,<ref>{{cite journal |last1=Leighton |first1=W.A. |year=1854 |title=Monograph of the British Graphideae |journal=Annals and Magazine of Natural History |series=2 |volume=13 |issue=78 |pages=436–446 |doi=10.1080/03745485709495101 |url=https://www.biodiversitylibrary.org/page/2346448}}</ref> Leighton coined the term {{lichengloss|ardella}} to refer to the small, spot-like {{lichengloss|apothecia|fruiting bodies}} characteristic of the lichen family Arthoniaceae.<ref>{{cite journal |last=Mitchell |first=M.E. |year=2014 |title=De Bary's legacy: the emergence of differing perspectives on lichen symbiosis |journal=Huntia |volume=15 |issue=1 |pages=5–22 [14] |url=https://www.huntbotanical.org/admin/uploads/02hibd-huntia-15-1-pp05-22.pdf}}</ref>
==Family== Leighton married, first, in 1827, Catherine, youngest daughter of David Parkes, a Shrewsbury antiquary, and they had one son and two daughters at her death; secondly, Mrs. Gibson, and they had a son.{{sfn|Jackson|1893}}
{{Botanist|Leight.}}
==See also== * :Category:Taxa named by William Allport Leighton
==References== {{reflist}} ;Attribution {{DNB|first=Benjamin Daydon|last=Jackson|wstitle=Leighton, William Allport|volume=33}}
{{Authority control}}
{{DEFAULTSORT:Leighton, William Allport}} Category:1805 births Category:1889 deaths Category:19th-century English Anglican priests Category:19th-century English botanists Category:Alumni of St John's College, Cambridge Category:People educated at Wolverhampton Grammar School