Victor Fayod (23 November 1860 – 28 April 1900) was a

Swiss Swiss may refer to: * the adjectival form of Switzerland * Swiss people Places * Swiss, Missouri * Swiss, North Carolina *Swiss, West Virginia * Swiss, Wisconsin Other uses *Swiss-system tournament, in various games and sports *Swiss Internation ...

mycologist Mycology is the branch of biology concerned with the study of fungus, fungi, including their genetics, genetic and biochemistry, biochemical properties, their Taxonomy (biology), taxonomy and ethnomycology, their use to humans, including as a so ...

, who created an influential novel classification of the

agaric An agaric () is a type of fungus fruiting body characterized by the presence of a pileus (cap) that is clearly differentiated from the stipe (stalk), with lamellae (gills) on the underside of the pileus. In the UK, agarics are called "mushrooms ...

fungi and who described a number of new genera and species.

Biographical overview

Fayod was born on 23 November 1860 in Salaz, which is a small locality close to

Bex Bex (; german: Beis; frp, Bés) is a municipality in the canton of Vaud, Switzerland, located in the district of Aigle. It is a few kilometers south of its sister town municipality of Aigle. History Bex is first mentioned in 574 as ''in Bacci ...

in the Swiss canton of

Vaud Vaud ( ; french: (Canton de) Vaud, ; german: (Kanton) Waadt, or ), more formally the canton of Vaud, is one of the 26 cantons forming the Swiss Confederation. It is composed of ten districts and its capital city is Lausanne. Its coat of arms b ...

. He was a grandson of a famous Swiss geologist,

Johann von Charpentier Jean de Charpentier or Johann von Charpentier (8 December 1786 – 12 December 1855) was a German-Swiss geologist who studied Swiss glaciers. He was born in Freiberg, Saxony, Germany and died in Bex, Switzerland. Life After following in his f ...

. After attending school in Bex and

Lausanne , neighboring_municipalities= Bottens, Bretigny-sur-Morrens, Chavannes-près-Renens, Cheseaux-sur-Lausanne, Crissier, Cugy, Écublens, Épalinges, Évian-les-Bains (FR-74), Froideville, Jouxtens-Mézery, Le Mont-sur-Lausanne, Lugrin (FR-74), ...

, he studied Mathematics and later

Silviculture Silviculture is the practice of controlling the growth, composition/structure, and quality of forests to meet values and needs, specifically timber production. The name comes from the Latin ('forest') and ('growing'). The study of forests and wo ...

Zürich polytechnic (colloquially) , former_name = eidgenössische polytechnische Schule , image = ETHZ.JPG , image_size = , established = , type = Public , budget = CHF 1.896 billion (2021) , rector = Günther Dissertori , president = Joël Mesot , a ...

. He was strongly interested in botany and

mycology Mycology is the branch of biology concerned with the study of fungi, including their genetic and biochemical properties, their taxonomy and their use to humans, including as a source for tinder, traditional medicine, food, and entheogens, as ...

, but his work in those areas had to be conducted in a private capacity. Fayod first worked with

Heinrich Anton de Bary Heinrich Anton de Bary (26 January 183119 January 1888) was a German surgeon, botanist, microbiologist, and mycologist (fungal systematics and physiology). He is considered a founding father of plant pathology (phytopathology) as well as the fou ...

(1831–1888) in

Strasbourg Strasbourg (, , ; german: Straßburg ; gsw, label=Bas Rhin Alsatian, Strossburi , gsw, label=Haut Rhin Alsatian, Strossburig ) is the prefecture and largest city of the Grand Est region of eastern France and the official seat of the Eu ...

from 1881 to 1882, then as a tutor. He took a series of biology-related posts in

Bad Cannstatt Bad Cannstatt, also called Cannstatt (until July 23, 1933) or Kannstadt (until 1900), is one of the outer stadtbezirke, or city boroughs, of Stuttgart in Baden-Württemberg, Germany. Bad Cannstatt is the oldest and most populous of Stuttgart's b ...

Normandy Normandy (; french: link=no, Normandie ; nrf, Normaundie, Nouormandie ; from Old French , plural of ''Normant'', originally from the word for "northman" in several Scandinavian languages) is a geographical and cultural region in Northwestern ...

Nervi Nervi is a former fishing village 12 miles (19 km) northwest of Portofino on the Riviera di Levante, now a seaside resort in Liguria, in northwest Italy. Once an independent ''comune'', it is now a ''quartiere'' of Genoa. Nervi is 4 miles ( ...

, the "Valli Valdesi" (in the

Cottian Alps The Cottian Alps (; french: Alpes Cottiennes ; it, Alpi Cozie ) are a mountain range in the southwestern part of the Alps. They form the border between France (Hautes-Alpes and Savoie) and Italy (Piedmont). The Fréjus Road Tunnel and Fréjus Rai ...

), and

Genoa Genoa ( ; it, Genova ; lij, Zêna ). is the capital of the Italian region of Liguria and the List of cities in Italy, sixth-largest city in Italy. In 2015, 594,733 people lived within the city's administrative limits. As of the 2011 Italian ce ...

. He also assisted French bacteriologist

André Chantemesse André Chantemesse (23 October 1851 – 25 February 1919) was a French bacteriologist born in Le Puy-en-Velay, Haute-Loire. From 1880 to 1885 he served as ''interne des hôpitaux'' in Paris, earning his doctorate in 1884 with a dissertation on ad ...

(1851–1919) in

Paris Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. S ...

. After working in a dental laboratory in Paris in 1890, he decided to take on dentistry as an alternative less precarious career and became qualified as a dental surgeon at the Paris faculty of medicine. However health problems soon caused him to return to Switzerland and his illness continued until his death on 28 April 1900.

Scientific Achievements

Fayod mastered French, German and Italian and produced scientific papers in all three languages. A bibliography of his work can be found at the end of the Swiss Academy of Natural Sciences reference. He recognized the influence of Darwinism on botany and devised a new classification of the gilled fungi, based for the first time on microscopic features such as

basidia A basidium () is a microscopic sporangium (a spore-producing structure) found on the hymenophore of fruiting bodies of basidiomycete fungi which are also called tertiary mycelium, developed from secondary mycelium. Tertiary mycelium is highly-c ...

cystidia A cystidium (plural cystidia) is a relatively large cell found on the sporocarp of a basidiomycete (for example, on the surface of a mushroom gill), often between clusters of basidia. Since cystidia have highly varied and distinct shapes that ar ...

and

spores In biology, a spore is a unit of sexual or asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavourable conditions. Spores form part of the life cycles of many plants, algae, f ...

. He presented this classification in his most important work, "Prodrome d'une histoire naturelle des agaricinées" ("

Prodrome In medicine, a prodrome is an early sign or symptom (or set of signs and symptoms) that often indicates the onset of a disease before more diagnostically specific signs and symptoms develop. It is derived from the Greek word ''prodromos'', meaning ...

of a Natural History of the

Agarics An agaric () is a type of fungus fruiting body characterized by the presence of a pileus (cap) that is clearly differentiated from the stipe (stalk), with lamellae (gills) on the underside of the pileus. In the UK, agarics are called "mushrooms ...

"), in which he proposed some new generic designations which are still in use today: ''

Agrocybe ''Agrocybe'' is a genus of mushrooms in the family Strophariaceae (previously placed in the Bolbitiaceae). The genus has a widespread distribution, and contains about 100 species. Distribution Mushroom cultivation began with the Romans and Gre ...

'', ''

Cystoderma ''Cystoderma'' is a genus of fungi in the family Agaricaceae or Cystodermataceae. Its family position is in doubt and the family "Cystodermataceae" and tribe "Cystodermateae" have been proposed to include this group following recent molecular wo ...

'', '' Delicatula'', ''

Omphalotus ''Omphalotus'' is a genus of basidiomycete mushroom, in the family Marasmiaceae, formally circumscribed by Victor Fayod in 1889. Members have the traditional cap and stem structure. They are saprobic, and fruit in clumps on the ground, adjac ...

'', ''

Pholiotina ''Pholiotina'' is a genus of small agaric fungi. It was circumscribed by Swiss mycologist Victor Fayod in 1889 for ''Conocybe''-like species with partial veils. The genus has since been expanded to include species lacking partial veils. Taxonomi ...

'', and '' Schinzinia''. These genera, which bear his name as originating author, are the main reason that Fayod is still remembered. Some of them are well-known, containing common species, whilst others are less so. He also proposed many other new genus names which have not stood the test of time. Fayod's work focused primarily on the

Hymenomycetes Hymenomycetes was formerly the largest taxonomic group of fungi within the division Basidiomycota, but the term is no longer taxonomically relevant. Many familiar fungi belong to this class, including bracket fungi and toadstools. This class cont ...

. One major result was his description of spore discharge in the

basidiomycetes Basidiomycota () is one of two large divisions that, together with the Ascomycota, constitute the subkingdom Dikarya (often referred to as the "higher fungi") within the kingdom Fungi. Members are known as basidiomycetes. More specifically, Basi ...

involving the formation of a drop of liquid. He left a collection of biological illustrations and other items which are preserved in the Conservatoire and Botanical Gardens of Geneva. The genus '' Fayodia'' (of

fungi A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from ...

in the family

Tricholomataceae The Tricholomataceae are a large family of mushrooms within the Agaricales. Originally a classic "wastebasket taxon", the family included any white-, yellow-, or pink-spored genera in the Agaricales not already classified as belonging to e.g. the ...

), was named in his honour in 1930, as was the species '' Pluteus fayodii'' (which may be only a synonym of ''

Pluteus leoninus ''Pluteus leoninus'', commonly known as lion shield, can occasionally be found growing on dead wood in Europe and North Africa. The underside of the cap is typical of the genus ''Pluteus'' — the gills are pale, soon becoming pink when the spor ...

'').

References

{{DEFAULTSORT:Fayod, Victor 1860 births 1900 deaths Swiss mycologists