Publications

  • Cohen, J. I. In review. LithospermumFor: Flora of North America Editorial Committee [eds.], Flora of North America North of Mexico. New York and Oxford. Vol. 15.
  • Cohen, J. I. In review. AdeliniaFor: Flora of North America Editorial Committee [eds.], Flora of North America North of Mexico. New York and Oxford. Vol. 15.
  • Cohen, J. I. In review. AndersonglossumFor: Flora of North America Editorial Committee [eds.], Flora of North America North of Mexico. New York and Oxford. Vol. 15.
  • E. Saenz*, and J. I. Cohen. In review. OmphalodesFor: Flora of North America Editorial Committee [eds.], Flora of North America North of Mexico. New York and Oxford. Vol. 15.
  • Cohen, J. I. In review. A revision of the Mexican species of Lithospermum L. (Boraginaceae). Annals of the Missouri Botanical Garden.
  • Saenz, E.*, L. Mancera*, and J. I. Cohen. In press. HackeliaIn S. C. Meyers [ed.], Flora of Oregon. Oregon State University Pres, Corvallis, OR.
  • Cohen, J. I. In press. BuglossoidesIn S. C. Meyers [ed.], Flora of Oregon. Oregon State University Pres, Corvallis, OR.
  • Cohen, J. I. In press. LithospermumIn S. C. Meyers [ed.], Flora of Oregon. Oregon State University Pres, Corvallis, OR.
  • Jimenez-Mejias, P., J. I. Cohen, and R. F. C. Naczi. 2017. The study of online digitized specimens revalidates Andersonglossum boreale as a species different from A. virginianum (Boraginaceae). Phytotaxa. 295: 22-34. pdf
  • Cohen, J. I. 2016. De novo sequencing and comparative transcriptomics of floral development of the distylous species Lithospermum multiflorum. Frontiers in Plant Science. 7: 1934. pdf
  • Xu, Z., M.-L. Zhang, and J. I. Cohen. 2016. Phylogeographic history of Atraphaxis plants in arid northern China and the origin of A. bracteata in the Loess Plateau. PLOS One. 11: e0163243. pdf 
  • Cohen, J. I. 2016. Floral evolution in Lithospermum (Boraginaceae): independent origins of similar flower types. Botanical Journal of the Linnean Society. 180: 213-228. pdf 
  • Cohen, J. I. 2015. Adelinia and Andersonoglossum (Boraginaceae), two new genera from New World species of Cynoglossum. Systematic Botany. 40: 611-619. pdf
  • Medlin, J. S.*, J. I. Cohen, and D. L. Beck. 2015. Vector potential and population dynamics for Amblyomma inornatumTicks and Tick-borne Diseases. 6: 463-472. pdf
  • Cohen, J. I. 2014. A phylogenetic analysis of morphological and molecular characters of Boraginaceae: Evolutionary relationships, taxonomy, and patterns of character evolution. Cladistics. 30: 139-169. pdf
  • Davis, J. I., J. R. McNeal, C. F. Barrett, M. W. Chase, J. I. Cohen, M. R. Duvall, T. J. Givnish, S. W. Graham, G. Petersen, J. C. Pires, O. Seberg, D. Wm. Stevenson, and J. Leebens-Mack. 2013. Contrasting patterns of support among plastid genes and genomes for major clades of the Monocotyledons. In P. Wilkin [ed.], Early Events in Monocot Evolution. Cambridge University Press, UK.
  • Huang, J.-F., M.-L. Zhang, and J. I. Cohen. 2013. Phylogenetic analysis of Lappula Moench (Boraginaceae) based on molecular and morphological data. Plant Systematics and Evolution. 299: 913-926. pdf
  • Su, Z., M. Zhang, and J. I. Cohen. 2012. Phylogeographic and demographic effects of Quaternary climate oscillations in Hexinia polydichotoma (Compositae) in Tarim Basin and adjacent areas. Plant Systematics and Evolution 298: 1767-1776.  pdf
  •  Cohen, J. I. 2012. Continuous characters in phylogenetic analyses: Patterns of corolla tube length in Lithospermum L. (Boraginaceae). Biological Journal of the Linnean Society. 107: 442-457.  pdf
  • Cohen, J. I., and J. I. Davis. 2012. Molecular phylogenetics, molecular evolution, and patterns of clade support in Lithospermum(Boraginaceae) and related taxa. Systematic Botany. 37: 490-506.  pdf
  • Cohen, J. I., A. Litt, and J. I. Davis2012. Comparative floral development in Lithospermum L. (Boraginaceae) and implications for the evolution and development of heterostyly. American Journal of Botany. 99: 797-805.  pdf
  • Cohen, J. I., and J. Miller. 2012. LithospermumIn G. Davidse, M. Sousa M., S. Knapp, and F. Chiang [eds.]. Flora Mesoamericana, Vol. 4, Part 2. Missouri Botanical Garden Press, St. Louis, MO.
  • Cohen, J. I. 2011. A phylogenetic analysis of morphological and molecular characters of Lithospermum L. (Boraginaceae) and related taxa: Evolutionary relationships and character evolution. Cladistics. 27: 559-580.  pdf 
  • Cohen, J. I., and J. L. Reveal2011. (2007) Proposal to conserve Trigonotis Steven against Endogonia (Turcz.) Lindl. (Boraginaceae). Taxon. 60: 598-599. pdf
  • Cohen, J. I. 2010. “A case to which no parallel exists”: The influence of Darwin’s Different Forms of Flowers [Special Invited Paper]. American Journal of Botany. 97: 701-716.  pdf
  • Cohen, J. I., and J. I. Davis. 2009. Nomenclatural changes in Lithospermum (Boraginaceae) and related taxa following a reassessment of phylogenetic relationships. Brittonia 61: 101-111.  pdf
  • Straub, S. C. K., J. I. Cohen, and J. I. Reveal. 2008. Proposal to reject the name Americus (Cupresseaceae). Taxon. 57: 645-647. pdf
  • Davis, J. I., G. Petersen, O. Seberg, D. W. Stevenson, C. R. Hardy, M. P. Simmons, F. A. Michelangeli, D. H. Goldman, L. M. Campbell, C. D. Specht, and J. I. Cohen. 2006. Are mitochondrial genes useful for the analysis of monocot relationships? Taxon. 55: 857-870. pdf
  • Witter, J. A, J. L. Stoyenoff, H. A. Petrillo, J. L. Yocum, and J. I. Cohen. 2005. Effects of beech bark disease on trees and ecosystems. pp 28-35. In C. A. Evans, J. A. Lucas, and M. J. Twery [eds.], Beech Bark Disease: Proceedings of the Beech Bark Disease Symposium. USDA Forest Service, Newtown Square, PA. pdf

 

Presentations 

  • Cohen, J. I. 2017. The conservation biology of Oreocarya crassipes (Boraginaceae), the Terlingua Creek Cat's-Eye. Botany 2017. Fort Worth, TX [submitted talk]
  • Hutcheson, H., and J. I. Cohen. 2017. Comparative floral development of Oreocarya crassipes (Boraginaceae), a heterostylous species. Botany 2017. Fort Worth, TX [submitted poster]
  • Ryan, G. L., E. Ashwal, S. Turgman-Cohen, and J. I. Cohen. Intraindividual variation and mutation in apple (Malus x domestica). Botany 2017. Fort Worth, TX [submitted poster]
  • Wood, K., J. Neri, R. Boland, J. I. Cohen, and L. Ruane. The demographics, life history, and population genetics of Yreka phlox (Phlox hirsuta), an endangered species. Botany 2017. Fort Worth, TX [submitted poster]
  • Cohen, J. I. 2016. The systematics of Boraginaceae: Investigations at multiple taxonomic levels. Agricultural Research Service. Beltsville, MD [invited seminar]
  • Cohen, J. I. 2016. Population genetics of Oreocarya crassipes, an endangered species. Michigan Consortium of Botanists meeting 2016 at Grand Valley State University. Allendale, MI [submitted poster]
  • Ruane, L, K. Wood*, and J. I. Cohen. The demographics, life history, and population genetics of Yreka Phlox (Phlox hirsuta), an endangered species. Botany 2016. Savannah, GA [submitted poster] 
  • Cohen, J. I. 2016. Population genetics of Oreocarya crassipes, an endangered species. Botany 2016. Savannah, GA [submitted poster]
  • Cohen, J. I. 2016. Breeding system variation in Oreocarya crassipes. Botany 2016. Savannah, GA [submitted poster]
  • Saenz*, E., and J. I. Cohen. 2015. Comparative gynoecial development in Boraginales. Michigan Consortium of Botanists meeting 2015 at Eastern Michigan University. Ypsilanti, MI [submitted poster]
  • Cohen, J. I. 2015. The evolution of heterostyly in Boraginaceae. Botany 2015. Edmonton, Alberta [submitted talk]
  • Cohen, J. I. 2015. The systematics of Boraginaceae and the evolution and development of heterostyly. Eastern Michigan University. Ypsilanti, MI [invited seminar]
  • Cohen, J. I. 2014. The systematics of Boraginaceae and the evolution and development of heterostyly. Missouri Western State University. St. Joseph, MO [invited seminar]
  • Cohen, J. I. 2014. The evolution and development of heterostyly. Kettering University. Flint, MI [invited seminar]
  • Cohen, J. I. 2014. The systematics of Boraginaceae and the evolution and development of heterostyly. Christopher Newport University. Newport News, VA [invited seminar]
  • Cohen, J. I. 2014. The systematics of Boraginaceae and the evolution and development of heterostyly. Mercyhurst University. Erie, PA [invited seminar]
  • Gutierrez*, J., and J. I. Cohen. 2013. Comparative floral development of heterostylous species. Botany 2013. New Orleans, LA [submitted poster]
  • Rodriguez*, H., and J. I. Cohen. 2013. Comparative floral development of heterostylous species in Houstonia (Rubiaceae). Botany 2013. New Orleans, LA [submitted poster]
  • Saenz*, E., and J. I. Cohen. 2013. Comparative gynoecial development in Boraginales. Botany 2013. New Orleans, LA [submitted poster]
  • Cohen, J. I. 2013. The evolution and development of heterostyly in Boraginaceae. Howard University. Washington, DC [invited seminar]
  • Cohen, J. I. 2013. The systematics of Boraginaceae and the evolution and development of heterostyly. Delaware State University. Dover, DE [invited seminar]
  • Cohen, J. I. 2013. The systematics of Boraginaceae and the evolution and development of heterostyly.  Seattle University.  Seattle, WA [invited seminar]
  • Altamira, W., and J. I. Cohen. 2012. Comparative floral development in Lithospermum L. (Boraginaceae). Botany 2012. Columbus, OH [submitted talk]
  • Castellanos, L., and J. I. Cohen. 2012. Comparative gynoecial development in Boraginaceae and Lamiaceae. Botany 2012. Columbus, OH [submitted poster]
  • Cohen, J. I. 2011. The systematics of Boraginaceae and the evolution and development of floral morphology. Texas State University. San Marcos, TX [invited seminar]
  • Cohen, J. I. 2011. A phylogenetic analysis of morphological and molecular characters of Boraginaceae: Taxonomic reevaluations and character evolution. Botany 2011. St. Louis, MO [submitted talk]
  • Garza*, R., M. Tumonong*, B. Johnson*, and J. I. Cohen. 2011. The utility of mitochondrial DNA regions for phylogeny reconstruction in Boraginaceae. Botany 2011. St. Louis, MO [submitted poster]
  • Cohen, J. I., and J. I. Davis. 2010. Chloroplast DNA sampling for phylogeny reconstruction: Lessons from Lithospermum L. (Boraginaceae). Botany 2010. Providence, RI [submitted talk]
  • Cohen, J. I. 2010. Systematics of Lithospermum L.: Taxonomic reevaluations and morphological evolution. Texas A&M International University [invited seminar]
  • Cohen, J. I. 2010. Systematics of Lithospermum L.: Taxonomic reevaluations and morphological evolution. Southwestern Oklahoma State University [invited seminar]
  • Cohen, J. I. 2009. Systematics of Lithospermum L.: Taxonomic reevaluations and morphological evolution. Black Hills State University [invited seminar]
  • Cohen, J. I., and J. I. Davis. 2009. Systematics of Lithospermum L.: Taxonomic reevaluations and morphological evolution. Botany 2009. Snowbird, UT [submitted talk]
  • Cohen, J. I., A. Litt, D. Wm. Stevenson, and J. I. Davis. 2008. The world of walled marriages: Comparative floral development in Lithospermum L. Botany 2008. Vancouver, B. C., Canada [submitted talk]
  • Cohen, J. I. 2008. Systematics of Lithospermum L. and the evolution of heterostyly. L. H. Bailey Hortorium Seminar. Ithaca, NY [talk]
  • Cohen, J. I. 2007. Lithospermum L. systematics: Utilizing multiple cpDNA regions and morphological characters. Botany 2007. Chicago, IL [submitted talk]
  • Cohen, J. I. 2007. The taxonomy of Boraginaceae. L. H. Bailey Hortorium Seminar. Ithaca, NY [talk]
  • Cohen, J. I. 2006. Phylogeny and breeding system evolution in Lithospermum L. (Boraginaceae: Lithospermeae). Botany 2006. Chico, CA [submitted talk]
  • Cohen, J. I. 2006. Chromosome observations in Boraginaceae. L. H. Bailey Hortorium Seminar. Ithaca, NY [talk]
  • Ahmed, S. A., J. H. DeMera, J. I. Cohen, D. Rosane, V. Druget, A. Herforth, and E. Rodriguez. 2006. Training biomedical researchers on cultural and ecological landscapes in addressing health disparities: explorations in Amazonas, Venezuela and the Dominican Republic. The Tenth International Congress of Ethnobiology. Chiang Rai, Thailand [submitted talk]
  • Cohen J. I., E. M. Thompson, and J. A. Witter. 2002. Directional effects of American beech (Fagus grandifolia) bole on the exotic beech scale (Cryptococcus fagi). Marquette, MI [submitted poster]

 

* indicates undergraduate research student.