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Gerald Alfred Mulligan

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Gerald Alfred Mulligan (1928–2022), Canadian botanist.

Research Branch, Agriculture Canada (retired 1987, now emeritus Research Associate). Assistant Director, Biosytematics Research Institute 1973 to 1978. Director, Biosystematics Research Institute/Centre- 1978 to 1987.

IPNI standard form: G.A.Mulligan

Taxon names authored

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Eponyms

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Publications

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(List may be incomplete)

1950s

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  • Mulligan, G.A. 1952. Survey of common barberry (Berberis vulgaris L.) and European buckthorn (Rhamnus cathartica L.) in eastern Ontario. Canada Department of Agriculture Bull. 23 pp.
  • Mulligan, G.A. 1952. Barberry and buckthorn surveys in southern Ontario. Proc. sixth meeting National Weed Committee, pp. 130–131.
  • Mulligan, G.A. 1953. An example of hybridization in weeds. Proc. sixth meeting National Weed Committee, pp. 64–65.
  • Mulligan, G.A. 1954. The glabrous nodding thistle, Carduus nutans var. leiophyllus in Saskatchewan. Res. Rept National Weed Committee, Western Section, p. 108.
  • Mulligan, G.A. & Frankton, C. 1954. The plumeless thistles Carduus subsp.in Canada. Canadian Field-Naturalist 68: 31–36.
  • Lindsay, D.R. & Mulligan, G.A. 1955. Weed Survey in British Columbia. Res. Rept. National Weed Committee, Western Section, p. 125.
  • Moore, R.J. & Mulligan, G.A. 1956. Natural hybridization between Carduus nutans and Carduus acanthoides in Ontario. Canadian Journal of Botany 34: 71–85. DOI: 10.1139/b56-009
  • Mulligan, G.A. 1957. Chromosome numbers in Canadian weeds I. Canadian Journal of Botany 35: 779–789. DOI: 10.1139/b57-064
  • Mulligan, G.A. 1958. Chromosome numbers in the Chrysanthemum leucanthemum complex. Rhodora 60ː 122–125.
  • Moore, R.J. & Mulligan, G.A. 1958. Study of natural hybridization between Carduus acanthoides and Carduus nutans. Proceedings International Congress of Genetics 2ː 193.
  • Mulligan, G.A. 1959. Chromosome numbers in Canadian weeds II. Canadian Journal of Botany 37ː 81–92. DOI: 10.1139/b59-008
  • Mulligan, G.A. & Bassett, I.J. 1959. Achillea millefolium complex in Canada and portions of the United States. Canadian Journal of Botany 37ː 73–80. DOI: 10.1139/b59-007

1960s

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1970s

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1980s

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  • Mulligan, G.A. 1980. Poison ivy, western poison oak, and poison sumac. Agriculture Canada Publ. 1699. 13pp.
  • Mulligan, G.A. 1980. The genus Cicuta in North America. Canadian Journal of Botany 58: 1755–1767.
  • Mulligan, G.A. & Munro, D.B. 1980. The biology of Canadian weeds 48. Cicuta maculata L., C. douglasii (DC.) Coult. & Rose}}, and C. virosa L. Canadian Journal of Plant Science 61(1): 93–105. DOI: 10.4141/cjps81-012
  • Alex, J.F., Cayouette, R. & Mulligan, G.A. 1980. Common and botanical names of weeds in Canada. [Noms populaires et scientifiques des plantes nuisibles du Canada.] Agriculture Canada Publ. 1765. 415 pp.
  • Mulligan, G.A. & Munro, D.B.. 1981. The biology of Canadian weeds 51. Prunus virginiana L., and P. serotina Ehrh. Canadian Journal of Plant Science 61(4): 977-992. DOI: 10.4141/cjps81-144
  • Cody, W.J. & Mulligan, G.A. 1982. Chromosome numbers of some Canadian ferns and fern allies. Le Naturaliste Canadien 109: 273–275.
  • Mulligan, G.A. & Munro, D.B. 1983. Vascular plants poisonous to livestock in Canada 1. A preliminary inventory. Agriculture Canada Technical Bulletin 1983-23E. 33pp.
  • Mulligan, G.A., Munro, D.B. & McNeill, J. 1983. The status of Stachys palustris (Labiatae) in North America. Canadian Journal of Botany 61: 679–682. DOI: 10.1139/b83-077
  • Mulligan, G.A. 1984. Chromosome numbers of some plants native and naturalized in Canada. Le Naturaliste Canadien 111: 447–449.
  • Mulligan, G.A. (Editor) 1984. The biology of Canadian weeds, contributions 33-61. Agriculture Canada Publ. 1765. 415 pp.
  • Mulligan, G.A. & Munro, D.B. 1984. Chromosome numbers and sexual compatibility in North American Rorippa sylvestris (Cruciferae). Canadian Journal of Botany 62: 575–580. DOI: 10.1139/b84-086
  • Mulligan, G.A. & Munro, D.B.. 1984. Wild and cultivated plants poisonous to humans in Canada. Agriculture Canada Technical Bulletin 1984E. 22 pp.
  • Mulligan, G.A. (Editor) 1986. Systematics in Agriculture Canada at Ottawa from 1886-1966. Historical Series No. 28E. 81 pp.
  • Mulligan, G.A. (Editor) 1986. La Recherche en systématique à Agriculture Canada Ottawa 1886-1966. Série historique No. 28F. 83 pp.
  • Mulligan, G.A. 1987. Common weeds of Canada. NC Press Ltd. Toronto. 143 pp.
  • Mulligan, G.A. 1987. Les plantes nuisibles communes du Canada. Marcel Broquet Inc., Montréal. 142 pp.
  • Mulligan, G.A. & Munro, D.B. 1987. The biology of Canadian weeds 77. Veratrum viride Ait. Canadian Journal of Plant Science 67(3): 777–786. DOI: 10.4141/cjps87-105
  • Frankton, C. & Mulligan, G.A. 1987. Weeds of Canada (revised edition). NC Press, Toronto. 217 pp.
  • Frankton, C. & Mulligan, G.A. 1988. Les plantes nuisibles du Canada (revisée). Marcel Broquet Inc., Montréal. 218 pp.
  • Mulligan, G.A. & Munro, D.B. 1989. Taxonomy of species of North American Stachys (Labiatae) found north of Mexico. Le Naturaliste Canadien 116(1): 35-51. Abstract Reference page

1990s

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2000s

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2010s

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2020s

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  • Mulligan, G.A. 2021. Draba (Brassicaceae) in Canada and Alaska. Harvard Papers in Botany Vol. 21, No. 1, pp. 189–199

References

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  • Mulligan, Julie. 2014. The Real Weed Man: Portrait of Canadian Botanist Gerald A. Mulligan, 228 pp.
  • Al-Shehbaz, I.A. 2009. Two new North American species of Draba (Brassicaceae): D. heilii from New Mexico and D. mulliganii from Alaska. Harvard Pap. Bot. 14: 83–86. DOI: 10.3100/025.014.0112 Reference page
  • Butcher, Joan, 2020. Gerald A. (Gerry) Mulligan, A Long History and Career at the Farm. Friends of the Central Experimental Farm Newsletter, Fall 2020, pp.189-199.