Lance Evans

Professor, Biology

Dr. Lance Evans has been the Catherine and Robert Fenton Endowed Chair since January 2005. His research focuses on plant structures and functions. He is the moderator of the biology honor society, Beta Beta Beta, and he has been involved in organizing the Eastern Colleges Science Conference. 


  • PHD, U. of California Riverside
  • BS, Cal. St. Polytechnic U. Pomona

Courses Taught

BIOL 103      Introduction to Biology
BIOL 111      General Biology I
BIOL 115      Principles of Biology I
BIOL 305      Plant Biology
BIOL 310      Research in Biology
BIOL 410      Research in Biology

  • Research

    Plant Aantomy of growth and development.

    Compare plant structures with functions - understand how cells. tissues and organs develop in relation to overall plant structure and function.

    Evans, L.S. and Cole R. Johnson. In press. . Machine Learning Programs
    Predict Saguaro Cactus Death. J. Computer Science and System Biology.

    Evans, L.S. and Ryan L’Abbate. 2018. Areole Changes during Bark
    Formation on Saguaro Cacti. Haseltonia. 24:55-62.

  • Publications and Scholarly Activities

    See full CV

    Peer-reviewed publications with Biology students as co-authors-in bold

    Publications from 2006 to present:

    Evans, L.S. and Ryan L’Abbate in press. Areole Changes during Bark Formation on Saguaro Cacti. Haseltonia.


    Evans, L.S. and Hayley Graney. 2018. Quantification of concavities in roots of Artemisia tridentata.  Rhizosphere 6: 52–55


    DeBonis, M., L. Barton, L. S. Evans. 2017. Rates of bark coverage of surfaces of saguaro cacti   (Carnegiea gigantea). J. Torrey Bot. Soc.  144: 450-458.


    Shahbazi, Z., D. Keane, D. Avanzi, and L.S. Evans. 2017. Automated finite element analysis of tree branches. Journal of Computing and Information Science in Engineering. 17(4) 041008 doi. 10.1115/1.4036556


    Scarcini, M., K. Encarnacion, A. Pineda and L.S. Evans. 2017. Visualization of xylary rings of Artemisia tridentata spp. wyomingensis. Universal Journal of Applied Mathematics 5: 28-33.


    Evans, L.S., Walter Wiley II and Christopher Auricchio. 2016. Xylem conductivity of petioles and primary stem tissues at stem terminals of herbaceous plant species. Journal Torrey Botanical Society. 143:311-321.


    Evans, L.S. and Margaret L. Cooney. 2015. Sunlight-induced bark formation in long-lived South American Columnar Cacti. Flora. 217:33-40.


    Evans, L.S. and Kristen Skonieczny. 2015. Xylem Conductivity in Terminal Stems of 20 Species of Columnar Cacti of South America. Bradleya.33:108-118.


    Evans, L.S. and Mark DeBonis, 2015. Predicting Morbidity and Mortality of Saguaro Cacti (Carnegiea gigantea). Journal of the Torrey Botanical Society. 142: 231-239.139


    Shahbazi, Z. A. Kaminski and L.S. Evans. 2015. Mechanical Stress Analysis of Tree Branches. American J. Mechanical Engineering. 3: 32-40.


    Evans, L.S. and Lauren Scelsa. 2014. Sunlight-induced Bark Formation on Current-year Stems of Euphorbia Plants from South Africa. South Africa Journal of Botany. 91:1-5.


    Evans, L.S.  Peter Boothe and Andrew Baez. 2014. Predicting Morbidity and

    Mortality for a Saguaro Cactus (Carnegiea gigantea) Population. Journal

    Torrey Botanical Society.

    Evans, L.S., Angela Citta and Stewart Sanderson. 2012. . Flowering branches cause injuries to second-year stems of Artemsia tridentata Nutt. subspecies tridentata. Western North American Naturalist. 72: 447-456.


    Evans, L.S. and Nycole Abela. 2011. Stem surface injuries of 20 species of succulent Euphorbia (Euphorbiacae) from South Africa. Environmental and Experimental Botany

                74, 205-215.


    Evans, L. S. and Alison Bromberg. 2010. Characterization of cork warts and aerenchyma in leaves of Rhizophora mangle and Rhizophora racemosa. J. Torrey Bot. Soc. 137: 35-40.


    Evans, L.S., Zachary Testo and Jonathan A. Cerutti. 2009. Characterization of internal airflow within tissues of mangrove species from Australia: leaf pressurization processes. J. Torrey Botanical Society 136: 70-83.


    Evans, L.S. and Annarita Macri. 2008. Stem Surface Injuries of several species of Columnar Cacti of Ecuador. J. Torrey Botanical Society 135:475-482.


    Evans, L.S., Maryvic F. de Leon and Erika Sai. 2008. Anatomy and morphology of Rhizophora stylosa in relation to internal airflow and Attim’s plant architecture. J. Torrey Botanical Society 135:114-125.


    Evans, L. S., Z. Kahn-Jetter, Jessica Torres, Mabel Martinez, and Paul Tarsia. 2008. Mechanical stresses of primary branches: A survey of 40 woody tree and shrub species. Trees 22: 283-289.


    Evans, L.S., Z. Kahn-Jetter, C, Marks, and K. Harmoney. 2007. Mechanical properties and anatomical components of stems of 42 grass species. J. Torrey Botanical Society. 134: 458-467.


    Evans, L.S., Sr. Joan Harnett and Zella Kahn-Jetter 2006. Procedures to Determine the Amount of Plant Cover around individual Plants. Environmental and Experimental Botany. 58: 180-187.


    Evans, L. S. and Matthew Domser. 2006. Stem Injuries of Red Spruce Trees of the Adirondack Mountains, New York, USA. Environmental and Experimental Botany. 56: 286-292.

    Current research projects 
    1) Analysis of xylem conductivity in several groups of plants.
    2) Analysis of epidermal browning processes on the surfaces of many species of columnar cacti.
    3) Analysis of eccentric growth of stems and roots of Artemisia tridentata. 
    4) Analysis of mechanical stresses of tree branches.
    5) Analysis of plant stem growth processes.