| Birth Date: | May 14, 1916 |
| Birth Place: | Auckland, New Zealand |
| Death Place: | Auckland, New Zealand |
| Fields: | Plant pathology and taxonomic mycology |
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| Thesis1 Url: | and |
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| Thesis1 Year: | and |
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| Awards: | Honorary DSc of Massey University |
| Author Abbrev Bot: | Dingley |
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Joan Marjorie Dingley (14 May 1916 – 1 January 2008)[1] was one of the pioneer women of New Zealand science. She worked for the DSIR Plant Diseases Division from 1941 to 1976, becoming the head of mycology. She was a major research scientist in New Zealand for both laboratory and field-based plant pathology, and for taxonomic mycology.
Dingley was born in Parnell, Auckland on the 14 May 1916 to Harriet Griffiths and Captain Thomas Dingley. She was the second-youngest child in the family, who re-located to the Auckland suburb of Remuera in the early 1920s, where Dingley would live for the rest of her life. Her father died in 1925, when she was nine.[2]
Dingley's mother was an enthusiastic gardener and encouraged her daughter's interest in plants. This interest was also encouraged by Dingley's schools, including the Ladies' College of Remuera and Auckland Diocesan School for Girls.
She studied science at Auckland University College, majoring in zoology and biology. She graduated in 1941 with an MSc.
Her research interests lay with the taxonomy of ascomycetes, especially the Hypocreales. She rapidly became a world authority on these fungi. About 30 species of fungi have dingleyae as their species name, and the genus Dingleya was also named after her.[3]
She wrote a major, comprehensive list of New Zealand plant diseases, Records of plant diseases in New Zealand, published in 1969.[4]
Dingley developed the New Zealand Fungal Herbarium, building specimen numbers from 4,000 to 35,000 by the time she retired.[5]
Dingley also had a love for horticulture and gardening. She was a prime mover in the establishment of the Auckland Regional Botanic Gardens, and became an honorary life member of the ‘Friends’ of the gardens.
Dingley was awarded an honorary DSc by Massey University in 1994.[8] [9] [10] She was appointed an Officer of the Order of the British Empire in the 1995 Queen's Birthday Honours, for services to botany. In 2004, Landcare Research named one of its Auckland laboratories the JM Dingley Microbiology Laboratory in her honour. She attended the naming ceremony.
In 2017, Dingley was selected as one of the Royal Society Te Apārangi's "150 women in 150 words", celebrating the contributions of women to knowledge in New Zealand.