Mark Alwin Clements

{{Short description|Australian botanist and orchidologist}}

{{Use dmy dates|date=April 2022}}

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| name = Mark Alwin Clements

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| birth_date = {{birth year and age|1949}}

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| nationality = Australian

| fields = Botany

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| author_abbrev_bot = M.A.Clem.

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Mark Alwin Clements ({{born in|1949}}) is an Australian botanist and orchidologist. He obtained his doctorate at the Australian National University{{cite web |url=https://www.anbg.gov.au/cpbr/staff/clements_staff.html |title=Mark Clements |publisher=Center for Australian National Biodiversity Research |access-date=27 June 2017 }} defending his thesis entitled Reproductive Biology in relation to phylogeny of the Orchidaceae, especially the tribe Diurideae.{{cite journal|title=Student theses abstracts in Volumes 123-132|journal=Journal and Proceedings of the Royal Society of New South Wales|date=1996|volume=129|pages=83–84|url=http://nsw.royalsoc.org.au/journal_archive/theses96.html|access-date=26 June 2017|url-status=dead|archive-url=https://web.archive.org/web/20110527143300/http://nsw.royalsoc.org.au/journal_archive/theses96.html#clements|archive-date=27 May 2011}}

In 2008, Clements was a researcher at the Center for Research on Plant Biodiversity at the Australian National Botanic Gardens in Canberra.{{cite journal | last1=Indsto |first1=James O. |last2=Weston |first2=Peter H. |last3=Clements |first3=Mark A. |last4=Dyer |first4=Adrian G. |last5=Batley |first5=Michael |last6=Whelan |first6=Robert J. |date=2006 |title=Pollination of Diuris maculata (Orchidaceae) by male Trichocolletes venustus bees |journal=Australian Journal of Botany |volume=54 |pages=669–679 |doi=10.1071/BT05146 }} As of January 2012, it had identified and classified 1,992 new species.