Raymond Lewis, Ph.D.


Associate Professor of Biology
On Faculty since 1996

Phone: (630)752-5300


Ph.D., Biological Sciences, University of California, Santa Barbara. 1991.

M.Sc., Botany, University of British Columbia, Vancouver, British Columbia, Canada. 1982.

B.A. (Highest Honors), Biological Sciences, University of California, Berkeley. 1979.

About Raymond Lewis

Professionally Dr. Lewis is interested in genetics and physiology of marine algae, environmental ethics, applied phycology and botany. Personally his interests include natural history, Asian cuisine, and missions.

Courses Taught

  • BIOL 201 Principles of Biology
  • BIOL 241-242 College Biology
  • BIOL 252 Biological Systems
  • BIOL 314 Environmental Science
  • BIOL 319 Environmental Ethics
  • BIOL 341 Plant Physiology
  • BIOL 342 Plant Morphology
  • BIOL 343 (Black Hills) Plant Taxonomy
  • BIOL 344 Economic Botany
  • IDS 322 Theories of Origins

Membership in Professional Societies

  • American Scientific Affiliation
  • Phycological Society of America
  • International Phycological Society
  • Botanical Society of America
  • Council on Undergraduate Research


Growth, genetics and reproduction of brown algae


Phillips N, Kapraun DF, Gómez Garreta A, Ribera Siguan MA, Rull JL, Salvador Soler N, Lewis R, Kawai H. 2011. Estimates of nuclear DNA content in 98 species of brown algae (Phaeophyta). AoB PLANTS 2011 plr001 doi:10.1093/aobpla/plr001 (online publication 18 Jan 2011)

Lewis, R.J., Matthews, B.J., Chambers M.K., Coburn, M.E., and Foxwell, T.J. 2009. The effects of salinity on gametogenesis in various kelps (Laminariales),” 63rd Annual Meeting of the Phycological Society of America, July 18-22, 2009, Honolulu, HI

Lewis, R.J. and Johnston, M.R. 2008. Heat stability and volatility of a putative oogenesis-inducing male pheromone in the brown alga Macrocystis integrifolia, 62nd Annual Meeting of the Phycological Society of America, July 27-31, 2008, New Orleans, LA.

Moshier, S.O., Arnold, D., Funck, L.L., Lewis, R.J., Smith, A.J., Walton, J.H., and Wharton, W.R. 2007. Theories of Origins: A Multi- and Interdisciplinary Course for Undergraduates at Wheaton College. Perspectives on Science and Christian Faith 59 (4): 289-296.

Cho. G.E. and Lewis, R.J. 2006. Production of Sperm and Male Pheromone in the Giant Kelp Macrocystis integrifolia. 61st Annual Meeting of the American Scientific Affiliation at Calvin College, July 28-31, 2006.

Lee, S.-Y., and Lewis, R.J. 2006. Specificity of Male Brown Algal Pheromones. 61st Annual Meeting of the American Scientific Affiliation at Calvin College, July 28-31, 2006.

Lewis, R.J. 2005. Why Should We Care about the Extinction of Species? in D.F. Chappell and E.D. Cook, eds., Not Just Science: Questions Where Christian Faith and Natural Science Intersect, pp. 109-114. Zondervan, Grand Rapids, MI.

Lewis, R.J. & Lanker, M.D. 2004. Branching morphology of gametophytes and tetrasporophytes of Ceramium codicola (Ceramiaceae, Rhodophyta) is related to phase and reproductive structures. Phycologia 43: 121-125.

Lewis, R.J., Johnson, L.M. & Hoagland, K.D. 2002. Effects of cell density, temperature, and light intensity on growth and stalk production in the biofouling diatom Achnanthes longipes (Bacillariophyceae). Journal of Phycology 38: 1125-1131.

Lewis, Raymond J., Susan I. Jensen, Dean M. DeNicola, Virginia I. Miller, Kyle D. Hoagland, and Stephen G. Ernst, 1997. Genetic variation in the diatom Fragilaria capucina along a latitudinal gradient across North America. Plant Syst. Evol. 204: 99-108.

Lewis, Raymond J. and M. Dennis Hanisak, 1996. Effects of phosphate and nitrate supply on productivity, agar composition and agar physical characteristics of Gracilaria Strain G-16S. J. Appl. Phycol. 8: 41-49.

Lewis, Raymond J. 1996. Phycological Reviews 16. Chromosomes of the brown algae. Phycologia 35: 19-40.

Lewis, Raymond J., 1996. Hybridization of brown algae: compatibility and speciation. In: B.R. Chaudhary and S.R. Agrawal (eds), Cytology, Genetics and Molecular Biology of Algae, pp. 275-289. SPB Academic Publishing, Amsterdam.

Lewis, Raymond J. and Michael Neushul, 1995. Intergeneric hybridization among five genera of the family Lessoniaceae (Phaeophyceae) and evidence for polyploidy in a fertile Macrocystis × Pelagophycus hybrid. J. Phycol. 31:1012-1017.

Lewis, Raymond J. and Michael Neushul, 1994. Northern and Southern Hemisphere hybrids of Macrocystis (Phaeophyceae). J. Phycol. 30: 346-353.

Lewis, Raymond J., Ben Yu Jiang, Michael Neushul and Xiu Geng Fei, 1993. Haploid parthenogenetic sporophytes of Laminaria japonica (Phaeophyceae). J. Phycol. 29: 363-369.

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