Stanley John Hughes

Stanley John Hughes (1918–2019) was a Canadian scientist who was known his work in the field of mycology for developing and introducing a precise and meticulous system for classifying fungi that is still used today. A naturalized Canadian, he was a federal research scientist for Agriculture and Agri-Food Canada at what is today the Ottawa Research and Development Centre.

Throughout his professional career he made significant contributions to the field of fungal taxonomy. His contributions introduced an updated method of classifying fungi to enable more in-depth research on moulds. He completed his studies at the University of Wales in Aberystwyth where he obtained a Bachelor of Science degree, (1941), Master of Science (1943) and Doctor of Science (1954). These national reference collections help scientists identify fungi and support research to control fungal pathogens that affect Canadian agricultural production.

Career Upon coming to Canada, Hughes almost immediately initiated a new era in the classification of conidial fungi, an economically important group of fungi, commonly referred to as moulds, that reproduce asexually by producing masses of spores called “conidia”.

His 1953 paper in the Canadian Journal of Botany, “Conidiophores, conidia, and classification” offered a novel approach to modifying the classification of conidial fungi. He proposed a number of useful descriptive terms such as blastospore, porospore, meristem arthrospore, and basauxic conidiophores which are now widely used.

The approach for classifying fungi that Hughes recommended provided a prospect for improving communication, organization, and retrieval of information about conidial fungi. This work was a significant update to the systematics of conidial fungi and it influenced subsequent mycological taxonomic literature.

Hughes travelled extensivvely to collect and study microfungi which resulted in over 130 publications, descriptions of hundreds of new genera and species and identification keys to help classify many moulds. In 1949 he spent three months in Ghana as a visiting scientist and in 1955 he visited many European national and university fungal collections to trace important specimens gathered by early mycologists. A Senior Research Fellowship from New Zealand in 1963 enabled him to spend a year in that country and author more than 30 papers on the fungi of New Zealand. Sooty moulds occur sporadically through the world but are particularly abundant and conspicuous in the “mist forests” of the Pacific basin.