history established

The Frenchman Who Colored the Fungi: Pierre Bulliard and His Great Mushroom Book

In the 1700s a French naturalist set out to paint the fungi of his country in color, and produced a landmark. Here is Bulliard and the golden age of mushroom illustration.

MMI Editorial July 7, 2026 20 min read

In the second half of the seventeen-hundreds, when the systematic study of the natural world was gathering real momentum across Europe, a French naturalist and illustrator set himself an ambitious task, to document and depict the fungi of France in a great illustrated work, rendering the country's mushrooms in accurate, colored images so that they could be known, studied, and identified. His name was Pierre Bulliard, and the illustrated works he produced became landmarks of mycological illustration, part of the foundation on which the scientific study and depiction of fungi would be built. He is one of the real figures, one of the named and documented practitioners, in the long tradition of fungal art that this series has been exploring, and his story opens a window onto the golden age of natural history illustration and the particular challenges and achievements of depicting mushrooms in color in an era before photography.

This article is about Bulliard and his work, and through him about the eighteenth-century flourishing of mycological illustration, that remarkable period when the scientific impulse to catalogue and depict the natural world produced great illustrated works of lasting beauty and value. It is a story about a real naturalist and artist, about the technical and scientific challenges of his enterprise, and about the enduring worth of the illustrated fungal works that he and his contemporaries created. Verify the biographical and bibliographic specifics against documented sources before publishing, since the details of eighteenth-century naturalists and their publications require careful checking.

The age of the great natural history books

To place Bulliard you have to understand the era he worked in, because his enterprise was part of a broad and powerful movement, the great age of natural history documentation. The eighteenth century saw an enormous surge of interest in systematically studying, classifying, and depicting the natural world, driven by the whole intellectual current of the time, the impulse to observe, order, and understand nature in a rigorous and comprehensive way. This impulse produced, among much else, a flourishing of great illustrated natural history books, ambitious works that set out to document and depict the plants, animals, and other organisms of a region or a group with accuracy and completeness, richly illustrated so that the organisms could be recognized and studied.

These great illustrated works were the foundation of natural history in the period, and their importance is hard to overstate. Before photography, the illustrated book was the primary means of recording and sharing knowledge of what organisms looked like, and the production of accurate, comprehensive, beautifully illustrated natural history works was a central scientific enterprise, the way the growing knowledge of the natural world was documented and communicated. These books were serious scientific instruments as well as objects of beauty, the reference works through which naturalists learned to recognize species and built the shared knowledge of the natural world, and their creation was a major undertaking demanding both scientific and artistic skill.

Within this broad flourishing, the documentation of fungi had its own place and its own particular challenges, and this is where Bulliard's work fits. Fungi, as this series has explored, are peculiarly difficult subjects, perishable, variable, hard to preserve, dependent on color and fresh form for their identification, and documenting them in illustrated works therefore posed special difficulties and demanded special skill. The naturalists who took on the fungi, Bulliard among them, were tackling one of the harder corners of natural history illustration, and their achievement in producing accurate, useful, beautiful illustrated works on fungi is correspondingly notable, a real accomplishment within the larger enterprise of documenting the natural world.

It helps to understand the intellectual framework these naturalists were working within, because it shaped the whole enterprise. The eighteenth century was the great age of classification, when the systematic ordering of the natural world into a coherent scheme of species and groups became a central scientific project, and the illustrated works of the period were bound up with this classifying impulse, the images serving not just to record individual organisms but to fix and communicate the species being defined and ordered. To illustrate a fungus in this context was to contribute to the great project of naming and classifying the living world, to help establish and stabilize the identity of a species within the emerging systematic scheme, and the illustrated works were instruments of this classifying science as much as records of individual organisms. Bulliard's fungal illustration belongs to this framework, part of the era's grand effort to bring the whole natural world, fungi included, into ordered, named, communicable knowledge.

The broader significance of this age of documentation is that it laid the foundations on which all later natural history, mycology included, would build, and this gives figures like Bulliard a foundational importance. The great illustrated works of the period established the baseline knowledge of what organisms existed and what they looked like, created the references and the shared visual language on which subsequent study depended, and did the foundational labor of recording the natural world that later science would extend and refine. Without this foundational documentation, the systematic study of nature could not have advanced as it did, and the naturalists who produced it, Bulliard among them for the fungi, were doing indispensable groundwork, the essential early labor of recording and ordering the living world on which everything later would rest. Their illustrated works were not just beautiful objects but the foundation stones of the sciences of nature, and that foundational role is a large part of their lasting importance.

Bulliard's enterprise

Bulliard's contribution was to produce major illustrated works documenting the fungi and plants of France, ambitious undertakings that brought together his skills as both naturalist and illustrator in the service of recording his country's natural productions. His work on fungi in particular stands as a significant contribution to early mycology, a systematic effort to depict and describe the mushrooms of France in accurate colored illustrations, part of the foundational documentation on which the science would build. He was, in the fullest sense, both the scientist and the artist of his work, observing and describing the fungi and also rendering them, uniting in one person the roles that the best natural history illustration demands.

The technical achievement of producing colored illustrations of fungi in this era deserves real appreciation, because it was genuinely demanding. Rendering fungi accurately in color, at a time when this meant hand work and skilled craft rather than any mechanical process, required both the artistic ability to capture the organisms faithfully and the technical means to reproduce those images in color in a printed work. The production of colored plates in the period was a laborious and skilled undertaking, involving the making of printed images that were then colored, often by hand, a demanding process requiring collaboration and craft, and the achievement of producing a substantial illustrated work with accurate colored images of fungi was a real technical and artistic feat, one that Bulliard and his collaborators accomplished with genuine skill.

The scientific value of the work lay in its accuracy and its comprehensiveness, its genuine usefulness for knowing and identifying the fungi it depicted. Bulliard's illustrations aimed to render the fungi faithfully enough to serve identification and study, capturing the features that mattered, documenting a range of species, building a reference that other naturalists could use, and in this the work was a real scientific contribution, part of the foundational documentation of European fungi. The images were not merely decorative but functional, made to convey real knowledge of the organisms, and their accuracy and usefulness are what make Bulliard's work a genuine landmark in the early science of mycology, a foundation stone in the systematic documentation of fungi.

It is worth appreciating that Bulliard worked at a formative moment for the study of fungi specifically, when mycology was only beginning to emerge as a systematic field within the broader study of nature. Fungi had long been poorly understood, their biology mysterious, their classification unsettled, their very nature debated, and the eighteenth-century naturalists who turned serious attention to them were working at the frontier of a difficult and underdeveloped subject. To produce careful, systematic, illustrated documentation of fungi in this period was to help lay the groundwork for mycology as a real science, to bring order and record to a group of organisms that had been neglected and confused, and Bulliard's contribution belongs to that foundational effort, part of the early labor that turned the study of fungi from scattered observation into a systematic discipline. His work was pioneering not just in its execution but in its subject, tackling a group of organisms that were only then coming into serious scientific focus.

The organization and presentation of such a work mattered as much as the individual images, and this is worth noting because it reflects the scientific ambition behind the art. A great illustrated fungal work was not just a collection of pretty pictures but a systematic reference, organized to allow the fungi to be found, compared, and identified, with the images arranged and accompanied by description in a way designed to serve real use. The naturalist producing such a work had to think about how the whole thing would function as a tool, how a user would navigate it, how the images and descriptions would work together to convey the identity of each species, and this systematic, functional design is part of what distinguishes a genuine scientific work from mere illustration. Bulliard's fungal works were conceived as such systematic references, ordered and described to serve the real needs of identification and study, and this scientific structure underlying the beautiful images is part of their achievement and their lasting value.

The challenge of color

It is worth dwelling on the particular importance and difficulty of color in Bulliard's fungal work, because it goes to the heart of why such illustration mattered so much for mushrooms specifically. As this series has emphasized, color is often central to the identification of fungi, the precise shade of a cap, the color changes on bruising or cutting, the hue of the flesh and the spores, and these color features are exactly what a dried specimen loses and what a colored illustration can preserve. So the production of accurate colored images of fungi was not a luxury but a genuine scientific necessity, the only way, before color photography, to preserve a truthful record of the color features on which fungal identification so heavily depends.

This made the colored fungal illustration a genuinely valuable scientific instrument, and it made the technical challenge of producing it worth the enormous effort involved. To create a work with accurate colored images of many fungi was to create a reference that preserved exactly the perishable color information that mattered most and lasted least, a durable record of the living appearance of fungi that would otherwise have been lost with the decay of the specimens. The labor of producing such colored works, the skilled hand-coloring, the careful matching of the printed image to the living organism, was justified by the real scientific value of preserving that color information, and it is part of why the great colored fungal works of the period, Bulliard's among them, were such significant achievements.

The difficulty also meant that such works were expensive, laborious, and relatively rare, which adds to their value and their interest as objects. Producing a substantial illustrated work with hand-colored plates was a major and costly undertaking, and the resulting books were serious productions, the fruit of enormous labor and skill, valuable and not widely available. This is part of why the great colored natural history works of the period are treasured today, not only for their scientific and artistic content but as remarkable objects, the products of a laborious craft, tangible records of an era's effort to document the natural world in color by hand. Bulliard's fungal works belong to this category of treasured achievement, significant both for what they recorded and as accomplishments of the demanding craft of colored natural history illustration.

The collaborative reality behind such works deserves acknowledgment, because a great colored natural history book was rarely the product of one pair of hands alone. Behind the named naturalist typically stood a team of skilled workers, the engravers who translated the original artwork into printing plates, the colorists who applied the color to each printed copy, often by hand and often anonymously, the printers and publishers who produced and distributed the work. The finished book was thus a collective achievement, the naturalist's vision realized through the labor of many skilled hands, and while the work bears one name, it embodies the effort of a whole small enterprise of craft. This collaborative dimension is worth remembering, both because it is the truth of how such works were made and because it means that behind a figure like Bulliard stand many unnamed contributors whose skill was essential to the result, the engravers and colorists whose careful work made the beautiful colored plates possible.

There is also the matter of how these works were used and by whom, which illuminates their place in the culture of the time. A great colored fungal work was an instrument of the learned world, consulted by naturalists, collectors, physicians, and others with reason to identify or study fungi, circulating within the community of those engaged with natural history. It served as a shared reference, a common point of knowledge that different naturalists could consult and cite, helping to build the collective, communicable knowledge of fungi that turned scattered individual observation into a shared science. In this the illustrated work was not just a record but a tool of scientific community, a means by which knowledge was standardized and shared, and Bulliard's fungal works played this role, contributing to the common stock of European mycological knowledge and helping the scattered students of fungi to speak a shared visual language about the organisms they studied.

The fusion of science and art, once more

Bulliard's work is another clear instance of the fusion of science and art that runs through the whole tradition of natural history illustration, and it is worth returning to this theme because his case exemplifies it so well. He was genuinely both scientist and artist, observing and describing the fungi with a naturalist's rigor and rendering them with an illustrator's skill, and his work is simultaneously a scientific document, recording and communicating real knowledge of fungi, and a work of art, beautiful in its accurate and careful depiction of the organisms. The two dimensions are inseparable in his work, the science achieved through the art and the art in the service of the science, exactly the fusion that characterizes the finest natural history illustration.

This fusion was not incidental but essential to what the work accomplished, since only the union of scientific understanding and artistic skill could produce illustrations that were both accurate and useful and beautiful. A naturalist without artistic skill could not have rendered the fungi faithfully, and an artist without scientific understanding could not have known what to depict or how to make the images serve identification, and it took the combination, the person who was both, to produce work that was genuinely valuable as science and as art at once. Bulliard, like the other great natural history illustrators, embodied that combination, and his work stands as a demonstration that the depiction of nature at its best requires and rewards the fusion of the scientific and the artistic, the two not opposed but united in a single achievement.

The lasting value of the work reflects this fusion, its endurance as both a scientific and an artistic legacy. Bulliard's fungal illustrations have lasted, valued and consulted and appreciated long after his death, both for their historical scientific importance as foundational documentation of European fungi and for their beauty as accomplished works of natural history art. This double endurance, the work living on as both science and art, is the mark of the successful fusion, the illustration that was accurate enough to matter scientifically and beautiful enough to endure aesthetically, and it places Bulliard among the genuine and lasting figures of fungal illustration, a real named practitioner whose work exemplifies the union of science and art that the whole tradition represents.

Why the named figures matter

There is a reason this series has been careful to name real practitioners like Bulliard, Sowerby, Hussey, Merian, and Potter, and it is worth making that reason explicit, because it goes to the heart of honest cultural history. The history of fungal art is not an anonymous or abstract thing but the accumulated work of real, individual people, named naturalists and artists who devoted their skill and effort to depicting the fungi, and honoring their actual names and achievements is part of taking the tradition seriously and telling its history truthfully. To speak only in vague generalities about the tradition, without the real figures who made it, would be to lose the human reality of it, the actual people who sat before actual specimens and rendered them with real skill.

Naming the real figures also serves the discipline of accuracy that this series has tried to maintain, the commitment to real, documented history rather than vague or invented claims. Bulliard was a real person who produced real, documented, verifiable works, and grounding the history of fungal art in such genuine figures and their actual achievements is what keeps it honest, tied to the real record rather than floating free into generality or fabrication. The named practitioners are the anchors of a truthful history, the real people and real works against which the story can be checked, and building the account around them is part of the responsibility of telling the history of fungal art accurately, as this series has tried to do throughout.

That said, the honest historian also acknowledges the limits of the record, the many contributors whose names and works are less well documented or lost entirely. For every Bulliard whose work survives and is remembered, there were doubtless others, collaborators, colorists, engravers, lesser-known naturalists, whose contributions are less visible in the record, and the named figures stand, in part, for a larger collective effort much of which is anonymous or forgotten. Honoring the named practitioners means also remembering that they worked within a broader community and a broader effort, much of it uncredited, and that the history of fungal art, like most history, preserves some names while losing many others. The real figures we can name are precious partly because they are the visible representatives of a larger, partly hidden human achievement, and honoring them honors, through them, the whole tradition and all who contributed to it.

Why this matters

Pierre Bulliard matters, first, as a real and significant figure in the history of mycological illustration, a named eighteenth-century naturalist and artist whose great illustrated works on the fungi of France stand as landmarks in the early science of mycology and as accomplished works of natural history art. His achievement in documenting and depicting the fungi in accurate colored illustrations, at a time when this demanded enormous skill and labor, is a genuine contribution to both the science and the art of fungi, and he deserves to be known as one of the real practitioners who built the tradition of fungal illustration, a foundation stone in the systematic depiction of mushrooms.

He matters, too, as an exemplar of the great age of natural history illustration and of the enduring fusion of science and art that the whole tradition represents. His work embodies the eighteenth-century flourishing of illustrated natural history documentation, the demanding craft of colored illustration, and the union of scientific rigor and artistic skill that the finest fungal illustration requires and rewards. The honest way to hold Bulliard is with appreciation for his genuine achievement as both naturalist and artist, with recognition of the technical and scientific value of his colored fungal works, and with awareness that he stands as one real, named figure among the many who built the tradition of fungal art, the visible representative of a larger human effort to know and depict the fungi. He set out, in an age before photography, to hold his country's mushrooms in a book, to fix their perishable colored forms in accurate images that would last, and he succeeded so well that his work endures still, valued centuries later as both science and art, which is about the finest thing that can be said of any natural history illustrator.

Frequently asked questions

Who was Pierre Bulliard?
An eighteenth-century French naturalist and illustrator who produced major illustrated works documenting the fungi and plants of France. His work on fungi in particular is a significant contribution to early mycology, a systematic effort to depict and describe the mushrooms of France in accurate colored illustrations, uniting in one person the roles of scientist and artist.
Why was his work important?
Because it was foundational documentation of European fungi, produced in the great age of natural history illustration before photography, when the illustrated book was the primary means of recording what organisms looked like. His accurate colored images of fungi served identification and study and helped build the shared scientific knowledge of mushrooms, functioning as both a scientific instrument and a work of art.
Why did color matter so much?
Because color is often central to identifying fungi, the shade of a cap, changes on bruising or cutting, the hue of flesh and spores, and these are exactly the features a dried specimen loses. Before color photography, an accurate colored illustration was the only way to preserve this perishable color information, making colored fungal illustration a genuine scientific necessity, not a luxury.
Why was producing such works so difficult?
Because rendering fungi accurately in color meant skilled hand work rather than any mechanical process. Producing colored plates involved making printed images that were then colored, often by hand, a laborious and demanding craft requiring real artistic and technical skill. The result was that such works were expensive, laborious, and relatively rare, treasured both for their content and as accomplishments of a demanding craft.
Why does this series name real figures like Bulliard?
Because the history of fungal art is the accumulated work of real, individual people, and honoring their actual names and achievements is part of telling that history truthfully and keeping it tied to the real, documented record rather than vague generality. Named practitioners like Bulliard, Sowerby, Hussey, Merian, and Potter are the anchors of an honest history and the visible representatives of a larger collective human effort to depict the fungi.