Michael D. Guiry

Michael Dominic Richard Guiry (born 1949), is an Irish botanist,[1] who specialises in phycology (algae). See for example the articles.[2][3][4][5] He is the founder and director of the algal database, AlgaeBase.[6]

Michael D. Guiry
Michael Guiry.jpg
(29 October 2019)
EducationUniversity College Cork
University of London
Scientific career
InstitutionsNational University of Ireland
Author abbrev. (botany)Guiry

He is a graduate of both University College Cork and the University of London. In addition to his interest in the taxonomy and the databasing of algae, his algal site promotes the sustainable use of seaweed resources.[6]

Since 2009 he has been an emeritus professor at the Ryan Institute, National University of Ireland, in Galway.[7]

The standard author abbreviation Guiry is used to indicate this person as the author when citing a botanical name.[8]

Some published namesEdit

(in AlgaeBase, as Guiry)

(Some 150 algal species listed, not all currently accepted)




  • Hardy, F.G.; Guiry, M.D. (2003). A Check-list and Atlas of the Seaweeds of Britain and Ireland (PDF). London: British Phycological Society. ISBN 978-0-9527115-1-3.



  1. ^ "Guiry, Michael Dominic Richard (1949-)". International Plant Names Index. Retrieved 5 November 2019.
  2. ^ Hommers, M.H.; Guiry, M.D.; Fredericq, S.; Leister, G.L. "New perspectives in the taxonomy of the Gigartinaceae (Gigartinales, Rhodophyta)". Hydrobiologia (1): 105–120.
  3. ^ Guiry, Michael D.; Maggs, Christine A. (2009). "Reproduction and life history of Meredithia microphylla (J. Ag.) J. Ag. (Kallymeniaceae, Rhodophyta) from Ireland". Giornale Botanico Italiano. 118 (3–4): 105–125. doi:10.1080/11263508409426665. ISSN 0017-0070.
  4. ^ Maggs, C.A.; Guiry, M.D.; Rueness, J. (2007). "Aglaothamnion priceanum sp. nov. (Ceramiaceae, Rhodophyta) from the North-Eastern Atlantic: Morphology and life history of Parasporangial plants". British Phycological Journal. 26 (4): 343–352. doi:10.1080/00071619100650311. hdl:10379/9469. ISSN 0007-1617. pdf
  5. ^ Masuda, Michio; Kogame, Kazuhiro; Guiry, Michael D. (2019). "Life history of Gymnogongrus griffithsiae (Phyllophoraceae, Gigartinales) from Ireland: implications for life history interpretation in the Rhodophyta". Phycologia. 35 (5): 421–434. doi:10.2216/i0031-8884-35-5-421.1. ISSN 0031-8884.
  6. ^ a b "Team :: Algaebase". www.algaebase.org. Retrieved 4 November 2019.
  7. ^ ORCID. "Michael Guiry (0000-0003-1266-857X)". orcid.org. Retrieved 4 November 2019.
  8. ^ IPNI.  Guiry.