John Ray FRS (29 November 1627 – 17 January 1705) was a Christian English naturalist widely regarded as one of the earliest of the English parson-naturalists. Until 1670, he wrote his name as John Wray. From then on, he used 'Ray', after "having ascertained that such had been the practice of his family before him". He published important works on botany, zoology, and natural theology. His classification of plants in his Historia Plantarum, was an important step towards modern taxonomy. Ray rejected the system of dichotomous division by which species were classified by repeated sub-division into groups according to a pre-conceived series of characteristics they have or have not, and instead classified plants according to similarities and differences that emerged from observation. He was among the first to attempt a biological definition for the concept of species, as "a group of morphologically similar organisms arising from a common ancestor".[1] Another significant contribution to taxonomy was his division of plants into those with two seedling leaves (dicotyledons) or only one (monocotyledons), a division used in taxonomy today.[2]

John Ray
John Ray
Born(1627-11-29)29 November 1627
Died17 January 1705(1705-01-17) (aged 77)
Black Notley, Essex, England
Alma materTrinity College, Cambridge
St Catharine's College, Cambridge
Scientific career
FieldsBotany, Zoology, Natural history, Natural theology
Academic advisorsJames Duport
Author abbrev. (botany)Ray
John Ray by Roubiliac, British Museum



Early life

John Ray's birthplace in Black Notley, Essex
Blue plaque to John Ray

John Ray was born in the village of Black Notley in Essex. He is said to have been born in the smithy, his father having been the village blacksmith. After studying at Braintree school, he was sent at the age of sixteen to Cambridge University: studying at Trinity College.[3] Initially at Catharine Hall, his tutor was Daniel Duckfield, and later transferred to Trinity where his tutor was James Duport, and his intimate friend and fellow-pupil the celebrated Isaac Barrow. Ray was chosen minor fellow[a] of Trinity in 1649, and later major fellow.[b] He held many college offices, becoming successively lecturer in Greek (1651), mathematics (1653), and humanity (1655), praelector (1657), junior dean (1657), and college steward (1659 and 1660); and according to the habit of the time, he was accustomed to preach in his college chapel and also at Great St Mary's, long before he took holy orders on 23 December 1660. Among these sermons were his discourses on The wisdom of God manifested in the works of the creation,[4] and Deluge and Dissolution of the World. Ray was also highly regarded as a tutor and he communicated his own passion for natural history to several pupils. Ray's student, Isaac Barrow, helped Francis Willughby learn mathematics and Ray collaborated with Willughby later.[5][6] It was at Trinity that he came under the influence of John Wilkins, when the latter was appointed master of the college in 1659.[7]

Later life and family


After leaving Cambridge in 1663 he spent some time travelling both in Britain and the continent.[8] In 1673, Ray married Margaret Oakley of Launton in Oxfordshire; in 1676 he went to Middleton Hall near Tamworth, and in 1677 to Falborne (or Faulkbourne) Hall in Essex. Finally, in 1679, he removed to his birthplace at Black Notley, where he afterwards remained. His life there was quiet and uneventful, although he had poor health, including chronic sores. Ray kept writing books and corresponded widely on scientific matters, collaborating with his doctor and contemporary Samuel Dale.[9] He lived, in spite of his infirmities, to the age of seventy-seven, dying at Black Notley. He is buried in the churchyard of St Peter and St Paul where there is a memorial to him. He is widely regarded as one of the earliest of the English parson-naturalists.[10]

Memorial to John Ray in the churchyard of St Peter and St Paul in Black Notley
Close-up of memorial to John Ray


Synopsis methodica stirpium britannicarum, 1690

At Cambridge, Ray spent much of his time in the study of natural history, a subject which would occupy him for most of his life, from 1660 to the beginning of the eighteenth century.[7][8] When Ray found himself unable to subscribe as required by the Act of Uniformity 1662 he, along with 13 other college fellows, resigned his fellowship on 24 August 1662 rather than swear to the declaration that the Solemn League and Covenant was not binding on those who had taken it.[11] Tobias Smollett quoted the reasoning given in the biography of Ray by William Derham:

The reason of his refusal was not (says his biographer) as some have imagined, his having taken the solemn league and covenant; for that he never did, and often declared that he ever thought it an unlawful oath: but he said he could not say, for those that had taken the oath, that no obligation lay upon them, but feared there might."[12]

His religious views were generally in accord with those imposed under the restoration of Charles II of England, and (though technically a nonconformist) he continued as a layman in the Established Church of England.[11]

From this time onwards he seems to have depended chiefly on the bounty of his pupil Francis Willughby, who made Ray his constant companion while he lived. They travelled extensively, carrying out field observations and collecting specimens of botany, ornithology, ichthyology, mammals, reptiles and insects. Initially they agreed that Ray would take responsibility for the plants, and Willughby for birds, beasts, fishes, and insects. Willughby arranged that after his death, Ray would have 6 shillings a year for educating Willughby's two sons.[13]

In the spring of 1663 Ray started together with Willughby and two other pupils (Philip Skippon and Nathaniel Bacon[14]) on a tour through Europe, from which he returned in March 1666, parting from Willughby at Montpellier, whence the latter continued his journey into Spain. He had previously in three different journeys (1658, 1661, 1662) travelled through the greater part of Great Britain, and selections from his private notes of these journeys were edited by George Scott in 1760, under the title of Mr Ray's Itineraries. Ray himself published an account of his foreign travel in 1673, entitled Observations topographical, moral, and physiological, made on a Journey through part of the Low Countries, Germany, Italy, and France. From this tour Ray and Willughby returned laden with collections, on which they meant to base complete systematic descriptions of the animal and vegetable kingdoms.[13]

In 1667 Ray was elected Fellow of the Royal Society,[13] and in 1669 he and Willughby published a paper on Experiments concerning the Motion of Sap in Trees. In 1671, he presented the research of Francis Jessop on formic acid to the Royal Society.[15]

Following Willughby's death in 1672, Ray took on the responsibility of bringing both Willughby's work and his own to publication. Ray was left with an ornithology and ichthyology to edit as well as his own work dealing with mammals, reptiles and insects. Although he presented the Ornithologia (1676) as Willughby's, he made extensive contributions to the work. His task became more difficult after the death of Lady Cassandra, Willughby's mother, on July 25, 1675. Lady Cassandra had supported Ray's continued work, but the widow Willughby had no interest in her late husband's scientific interests or his scientific friends. Ray was no longer allowed to instruct the children, and Ray and his wife Margaret Oakley were forced to leave the Willughby household in Middleton. Critically, Ray lost access to the Willughby collections, notes and manuscripts at this time. The plants gathered on his British tours had already been described in his Catalogus plantarum Angliae (1670), which formed the basis for later English floras. He had likely already used the botanical collections to lay much of the groundwork of his Methodus plantarum nova (1682), His great Historia generalis plantarum appeared in 3 vols. in 1686, 1688, 1704.[13]

In the 1690s, he published three volumes on religion—the most popular being The Wisdom of God Manifested in the Works of the Creation (1691), an essay describing evidence that all in nature and space is God's creation as in the Bible is affirmed. In this volume, he moved on from the naming and cataloguing of species like his successor Carl Linnaeus. Instead, Ray considered species' lives and how nature worked as a whole, giving facts that are arguments for God's will expressed in His creation of all 'visible and invisible' (Colossians 1:16). Ray gave an early description of dendrochronology, explaining how to find the ash tree's age from its tree-rings.[16]



Ray's work on plant taxonomy spanned a wide range of thought, starting with an approach that was predominantly in the tradition of the herbalists and Aristotelian, but becoming increasingly theoretical and finally rejecting Aristotelianism. Despite his early adherence to Aristotelian tradition, his first botanical work, the Catalogus plantarum circa Cantabrigiam nascentium (1660),[17] was almost entirely descriptive, being arranged alphabetically. His model was an account by Bauhin of the plants growing around Basel in 1622 and was the first English county flora, covering about 630 species.[18] However at the end of the work he appended a brief taxonomy[19] which he stated followed the usage of Bauhin and other herbalists.[19][7]

System of classification


Ray's system, starting with his Cambridge catalogue, began with the division between the imperfect or lower plants (Cryptogams), and perfect (planta perfecta) higher plants (Seed plants). The latter he divided by life forms, e.g. trees (arbores), shrubs (frutices), subshrubs (suffrutices) and herbaceous plants (herbae) and lastly grouping them by common characteristics. The trees he divided into 8 groups, e.g. Pomiferae (including apple and pear). The shrubs he placed in 2 groups, Spinosi (Berberis etc.) and Non Spinosi (Jasmine etc.). The subshrubs formed a single group and the herbs into 21 groups.[20]

Division of Herbae;

  1. Bulbosae (Lilium etc.)
  2. Tuberosae (Asphodelus etc.)
  3. Umbelliferae (Foeniculum etc.)
  4. Verticellatae (Mentha etc.)
  5. Spicatae (Lysimachia etc.)
  6. Scandentes (Cucurbita etc.)
  7. Corymbiferae (Tanacetum)
  8. Pappiflorae (Senecio etc.)
  9. Capitatae (Scabiosa etc.)
  10. Campaniformes (Digitalis etc.)
  11. Coronariae (Caryophyllus etc.)
  12. Rotundifoliae (Cyclamen etc.)
  13. Nervifoliae (Plantago etc.)
  14. Stellatae (Rubia etc.)
  15. Cerealia (Legumina etc.)
  16. Succulentae (Sedum etc.)
  17. Graminifoliae (Gramina etc.)
  18. [omitted]
  19. Oleraceae (Beta etc.)
  20. Aquaticae (Nymphaea etc.)
  21. Marinae (Fucus etc.)
  22. Saxatiles (Asplenium etc)

As outlined in his Historia Plantarum (1685–1703):[21]

Definition of species


Ray was the first person to produce a biological definition of species, in his 1686 History of Plants:

... no surer criterion for determining species has occurred to me than the distinguishing features that perpetuate themselves in propagation from seed. Thus, no matter what variations occur in the individuals or the species, if they spring from the seed of one and the same plant, they are accidental variations and not such as to distinguish a species... Animals likewise that differ specifically preserve their distinct species permanently; one species never springs from the seed of another nor vice versa.[22]



Ray published about 23 works, depending on how they are counted. The biological works were usually in Latin, the rest in English.[23] His first publication, while at Cambridge, was the Catalogus plantarum circa Cantabrigiam nascentium (1660), followed by many works, botanical, zoological,theological and literary.[8] Until 1670, he wrote his name as John Wray. From then on, he used 'Ray', after "having ascertained that such had been the practice of his family before him".[24]

List of selected publications


Libraries holding Ray's works


Including the various editions, there are 172 works of Ray, of which most are rare. The only libraries with substantial holdings are all in England.[23]p153 The list in order of holdings is:

The British Library, Euston, London. Holds over 80 of the editions.
The Bodleian Library, University of Oxford.
The University of Cambridge Library.
Library of Trinity College, Cambridge.
The Natural History Museum Library, South Kensington, London.
The John Rylands Library, University of Manchester, Deansgate, Manchester


Woodcut (1693)

Ray's biographer, Charles Raven, commented that "Ray sweeps away the litter of mythology and fable... and always insists upon accuracy of observation and description and the testing of every new discovery".[15]p10 Ray's works were directly influential on the development of taxonomy by Carl Linnaeus.

The Ray Society, named after John Ray, was founded in 1844. It is a scientific text publication society and registered charity, based at the Natural History Museum, London, which exists to publish books on natural history, with particular (but not exclusive) reference to the flora and fauna of the British Isles. As of 2017, the Society had published 179 volumes.[28]

The John Ray Society (a separate organisation) is the Natural Sciences Society at St Catharine's College, Cambridge. It organises a programme of events of interest to science students in the college.[29]

In 1986, to mark the 300th anniversary of the publication of Ray's Historia Plantarum, there was a celebration of Ray's legacy in Braintree, Essex. A "John Ray Gallery" was opened in the Braintree Museum.[30]

The John Ray Initiative (JRI) is an educational charity that seeks to reconcile scientific and Christian understandings of the environment. It was formed in 1997 in response to the global environmental crisis and the challenges of sustainable development and environmental stewardship. John Ray's writings proclaimed God as creator whose wisdom is "manifest in the works of creation", and as redeemer of all things. JRI aims to teach appreciation of nature, increase awareness of the state of the global environment, and to promote a Christian understanding of environmental issues.[31]

Furthermore, a nature walk has been established in Essex in memorium of John Ray. This walk was conquered by the Latimer/Hines household on 27th May 2024.

See also



  1. ^ While still a B.A.
  2. ^ On attaining his M.A.
  3. ^ "In fact, the book was Ray's, based on preliminary notes by Francis Willughby".[23]p52[15]Chapter 12 "Willughby and Ray laid the foundation of scientific ornithology".[25]
  4. ^ Plates subscribed by Fellows of the Royal Society. Samuel Pepys, the President, subscribed for 79 of the plates.
  5. ^ The third volume lacked plates, so his assistant James Petiver published Petiver's Catalogue in parts, 1715–1764, with plates. The work on the first two volumes was supported by subscriptions from the President and Fellows of the Royal Society
  6. ^ 7th ed. Printed by R. Harbin, for William Innys, at the Prince’s-Arms in St Paul’s Church Yard, London 1717. Each edition enlarged from the previous edition. This was his most popular work. It was in the vein later called natural theology, explaining the adaptation of living creatures as the work of God. It was heavily plagiarised by William Paley in his Natural theology of 1802.[23]p92[15]p452
  7. ^ This includes some important discussion of fossils. Ray insisted that fossils had once been alive, in opposition to his friends Martin Lister and Edward Llwyd. "These [fossils] were originally the shells and bones of living fishes and other animals bred in the sea". Raven commented that this was "The fullest and most enlightened treatment by an Englishman" of that time.[15]p426
  8. ^ This is the 3rd edition of Miscellaneous discourses, the last by Ray before his death, and delayed in publication. Its main importance is that Ray recanted his former acceptance of fossils, apparently because he was theologically troubled by the implications of extinction.[26]p37 Robert Hooke, like Nicolas Steno, was in no doubt about the biological origin of fossils. Hooke made the point that some fossils were no longer living, for example Ammonites: this was the source of Ray's concern.[27]p327


  1. ^ Historia plantarum generalis, in the volume published in 1686, Tome I, Libr. I, Chap. XX, page 40 (Quoted in Mayr, Ernst. 1982. The growth of biological thought: diversity, evolution, and inheritance. Cambridge, Mass.: Belknap Press: 256)
  2. ^ Atran, Scott (1992). Cognitive Foundations of Natural History: Towards an Anthropology of Science. Cambridge: Cambridge University Press.
  3. ^ "Ray, John (RY644J)". A Cambridge Alumni Database. University of Cambridge.
  4. ^ The wisdom of God manifested in the works of the Creation, Google Books
  5. ^ Mullens, W.H. (1909). "Some early British Ornithologists and their works. VII. John Ray (1627-1705) and Francis Willughby (1635-1672)" (PDF). British Birds. 2 (9): 290–300.
  6. ^ Birkhead, Tim (2018). The Wonderful Mr Willughby: The First True Ornithologist. London: Bloomsbury. pp. 24–25. ISBN 978-1-4088-7848-4.
  7. ^ a b c Slaughter 1982, p. 62.
  8. ^ a b c Vines 1913.
  9. ^ Morris, A. D. (1974). Samuel Dale (1659-1739), Physician and Geologist. Proceedings of the Royal Society of Medicine, 67, 120–124. Retrieved from
  10. ^ Armstrong 2000, pp. 45ff.
  11. ^ a b s:Ray, John (DNB00)
  12. ^ Tobias George Smollett (1761) The Critical review, or, Annals of literature, Volume 11 pp. 92–93
  13. ^ a b c d Mickel, Clarence E. (January 1973). "John Ray: Indefatigable Student of Nature". Annual Review of Entomology. 18 (1): 1–17. doi:10.1146/annurev.en.18.010173.000245. ISSN 0066-4170. PMID 4617556. Retrieved 21 February 2023.
  14. ^ Gribbin, John (2002). Science, a History, 1543-2001. New York: Allen Lane. ISBN 9780713995039.
  15. ^ a b c d e Raven 1950.
  16. ^ Armstrong, 2000. p. 47
  17. ^ Ray 1660.
  18. ^ Jarvis 2012.
  19. ^ a b Ray 1660, pp. 100–102.
  20. ^ Slaughter 1982, pp. 62–63.
  21. ^ Singh 2004, John Ray p. 302.
  22. ^ Mayr Growth of biological thought p256; original was Ray, History of Plants. 1686, trans E. Silk.
  23. ^ a b c d Keynes, Sir Geoffrey [1951] 1976. John Ray, 1627–1705: a bibliography 1660–1970. Van Heusden, Amsterdam.
  24. ^ Gunther 1928, p. 16.
  25. ^ Newton, Alfred 1893. Dictionary of birds. Black, London
  26. ^ Bowler, Peter J. (2003). Evolution: the history of an idea (3rd ed.). California. ISBN 9780520236936.{{cite book}}: CS1 maint: location missing publisher (link)
  27. ^ Hooke, Robert 1705. The posthumous works of Robert Hooke. London. repr. 1969 Johnson N.Y.
  28. ^ "The Ray Society". Retrieved 25 December 2017.
  29. ^ "John Ray Society". St Catharine's College, Cambridge. Archived from the original on 2 January 2014. Retrieved 7 May 2013.
  30. ^ "John Ray". Braintree Museum. Retrieved 1 February 2015.
  31. ^ "Mission". The John Ray Initiative. Retrieved 1 February 2015.
  32. ^ International Plant Names Index.  Ray.