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Christian R. Lacroix

I am interested in understanding early events in the development of plants structures like leaves and flowers. I then relate what I see at the microscopic level in terms of pattern of growth to the final (mature) form. To do this, I use an instrument called scanning electron microscope. It provides very fine detail of the surface of very small structures.

  • B.Sc., McGill University, 1984
  • M.Sc., McGill University, 1986
  • Ph.D., University of Guelph, 1990
Professor and Dean of Science
(902) 566-0382
Research Interests: 
  • Developmental Plant Morphology
  • Comparisons between compound leaves and shoots
  • Transitions in patterns of leaf arrangement
  • Homeosis in flowers
  • Conservation biology of the Gulf of St. Lawrence Aster

Lacroix, C. R. 2008. Chapter 5 : Morphologie et Anatomie. In: Aux origines des plantes, Hallé, F. (editor). Editions Fayard, Paris.  

Barabé, D, and C. R. Lacroix. 2008. Developmental morphology of the flower of Anthurium jenmanii: a new element in our understanding of basal Araceae. Botany. 86: 45-62.

Barabé, D., C. R. Lacroix, and B. Jeune. 2008. Quantitative developmental analysis of homeotic changes in the inflorescence of Philodendron (Araceae). Ann. Bot. 101: 1027-2008.

Steeves, R., V. Nazari, J.-F. Landry, and C. Lacroix. 2008. Pre-dispersal seed predation by a coleophorid on the threatened Gulf of Saint Lawrence aster.  Can. Entomol. 140: 297-305.

Barabé, D. and C. R. Lacroix. 2008. Hierarchical developmental morphology: the case of the inflorescence of Philodendron ornatum (Araceae). Int. J. Plant Sci. 169: 1013-1022.

Barabé, D. and C. R. Lacroix. 2008. Developmental morphology of the flower of Anaphyllopsis americana and its relevance to our understanding of basal Araceae. Botany 86:1467-1473.

Jeune, B. and C. R. Lacroix. 2009. A quantitative analysis of leaf growth parameters in Myriophyllum aquaticum (Vell.) Verdc. (Haloragaceae). Botany (in press).

Current Collaborators (non-UPEI): 

Denis Barabé, Institut de recherche en biologie végétale, Jardin botanique de Montréal

Bernard Jeune, Laboratoire de morphogenèse végétale, Université Pierre et Marie Curie, Paris – France

Arunika Gunawardena, Biology Department, Dalhousie University