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Lawrence Memorial Award

 

The Lawrence Memorial Award commemorates the life and achievements of Dr. George H. M. Lawrence (1910–1978), founding director of Hunt Institute. Since its inception in 1979, the award has aided 24 doctoral candidates with travel costs in support of dissertation research.



George Hill Mathewson Lawrence in the Reading Room of the Hunt Institute. Photo by the Public Relations Office of Carnegie Institute of Technology (now Carnegie Mellon University), ca.1960–ca.1967. HI Archives portrait no. 8.

2012 Lawrence Award Recipient

The Lawrence Award was not presented in 2012.

Nominations for the 2013 Lawrence Memorial Award

The Lawrence Memorial Fund Award Committee, which includes representatives from Hunt Institute, The Hunt Foundation, the Lawrence family, and the botanical community, invites nominations for the 2013 Lawrence Memorial Award.

The Lawrence Memorial Award commemorates the life and achievements of Dr. George H. M. Lawrence, founding director of Hunt Institute. The annual (semiannual from 1988 to 2000) award in the amount of $2,000 is given to an outstanding doctoral candidate for travel in support of dissertation research in systematic botany or horticulture or the history of the plant sciences, including literature and exploration. The award is presented at the annual banquet of the Botanical Society of America.

The recipient of the award is selected from candidates nominated by their major professors. Major professors are urged to nominate outstanding doctoral students who have achieved official candidacy for their degrees and will be conducting pertinent dissertation research that would benefit significantly from travel enabled by the award. Nominees may be from any country and the award is made strictly on the basis of merit—the recipient's general scholarly promise and the significance of the research proposed. The committee will not entertain direct applications. A student who wishes to be considered should arrange for nomination by his/her major professor; this may take the form of a letter which covers supporting materials prepared by the nominee. Supporting materials should describe briefly but clearly the candidate's program of research and how it would be significantly enhanced by travel that the award would support.

Letters of nomination and supporting materials, including seconding letters, should be received by the Committee no later than 1 May 2013 and should be directed to:

Dr. R. W. Kiger
Hunt Institute for Botanical Documentation
Carnegie Mellon University
5000 Forbes Avenue
Pittsburgh, PA 15213-3890
USA

Tel. (412) 268-2434

Lawrence Memorial Award Recipients, 1979-2012

Hunt Institute has been presenting the Lawrence Memorial Award since 1979. When choosing a recipient, the award committee evaluates a candidate's general scholarly promise and the significance of the research proposed. As evidenced by the achievements of the previous recipients, the award committee has made some excellent choices over the years.

Michael J. Balick (1979)
Ph.D., Harvard University, 1980
Director and Philecology Curator, Institute of Economic Botany, New York Botanical Garden
Ethnobotany; floristics

Selected Publications
Arvigo, R. and M. J. Balick. 1998. Rainforest Remedies: One Hundred Healing Herbs of Belize, ed. 2. Twin Lakes, Wisc.

Balick, M. J. and H. T. Beck. 1989. Useful Palms of the World: A Synoptic Bibliography. New York.

Balick, M. J. and P. A. Cox. 1996. Plants, People, and Culture: The Science of Ethnobotany. New York.

Balick, M. J., M. Nee and D. E. Atha. 2000. Checklist of the Vascular Plants of Belize, with Common Names and Uses. New York. [Mem. New York Bot. Gard. 85.]

Nelson, L., R. D. Shih, M. J. Balick and K. F. Lampe. 2006. Handbook of Poisonous and Injurious Plants, ed. 2. New York: New York Botanical Garden and Springer.

Posey, D. P. and M. J. Balick, eds. 2006. Human Impacts on Amazonia: The Role of Traditional Ecological Knowledge in Conservation and Development. New York: Columbia University Press.

James M. Affolter (1980)
Ph.D., University of Michigan, 1983
Director of Research, The State Botanical Garden of Georgia; Professor, Department of Horticulture, University of Georgia
Plant conservation; medicinal and aromatic plants; systematics of the Apiaceae

Selected Publications
Affolter, J. 1997. The essential role of horticulture in rare plant conservation. Hort. Sci. 32: 29–34.

Affolter, J. 1997. South African botanical gardens: Protecting one of the world's richest floras. Public Gard. 12(2): 18–21, 49.

Ceska, J., J. Affolter and J. Hamrick. 1997. Developing a conservation sampling strategy for Baptisia arachnifera based on allozyme diversity. Conservation Biol. 11(5): 1133–1139.

Lagrotteria, M. and J. Affolter. 1999. Sustainable production and harvest of medicinal and aromatic herbs in the Sierra de Cordoba region, Argentina. In: V. Nazarea, ed. 1999. Ethnoecology: Situated Knowledge/Located Lives. Tucson.

Janet R. Sullivan (1982)
Ph.D., University of Oklahoma, 1984
Adjunct Associate Professor, Department of Plant Biology, University of New Hampshire
Biosystematics of Physalis (Solanaceae); pollination biology; New England flora

Selected Publications
Seithe, A. and J. R. Sullivan. 1990. Hair morphology and systematics of Physalis (Solanaceae). Pl. Syst. Evol. 170: 193–204.

Sullivan, J. R. 1986. Reproductive biology of Physalis viscosa. In: W. G. D'Arcy, ed. 1986. Solanaceae: Biology and Systematics. New York. Pp. 274–283.

Sullivan, J. R. 1999. Reflections on 100 years of Rhodora. Rhodora 101: 1–15.

Sullivan, J. R. 2004. The genus Physalis (Solanaceae) in the southeastern United States. Rhodora 106: 305–326.

Raymond B. Cranfill (1983)
Ph.D., University of California, Berkeley, 2001
Phylogenetic systematics of Blechnaceae

Selected Publications
Cranfill, R. 1991. Flora of Hardin County, Kentucky. Castanea 56: 228–267.

Cranfill, R. 1993. Dennstaedtiaceae, Blechnaceae, Woodwardia. In: Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 4+ vols. New York and Oxford. Vol. 2. Pp. 198–199, 223–224, 226–227.

Cranfill, R. and D. M. Britton. 1983. Typification within the Polypodium vulgare complex (Polypodiaceae). Taxon 32: 557–560.

Pryer, K. M., H. Schneider, A. R. Smith, R. Cranfill, P. G. Wolf, J. S. Hunt and S. D. Sipes. 2001. Horsetails and ferns are a monophyletic group and the closest living relatives to seed plants. Nature 409: 618–621.

Pryer, K. M., E. Schuettpelz, P. G. Wolf, H. Schneider, A. R. Smith and R. Cranfill. 2004. Phylogeny and evolution of ferns (Monilophytes) with a focus on the early leptosporangiate divergences. Amer. J. Bot. 91(10): 1582–1598.

Schneider, H., E. Schuettpelz, K. M. Pryer, R. Cranfill, S. Magallón, R. Lupia. 2004. Ferns diversified in the shadow of angiosperms. Nature 428: 553–557.

Mark W. Chase (1984)
Ph.D., University of Michigan, 1985
Director, Molecular Biology, Jodrell Laboratory, Royal Botanic Gardens, Kew
Chloroplast DNA systematics; Orchidaceae and angiosperm phylogeny

Selected Publications
Chase, M. W. 2001. Brassia, Ionopsis, Leochilus, Macradenia, Oncidium, and Tolumnia. In: Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 4+ vols. New York and Oxford. Vol. 26.

Chase, M. W. 2005. Plant portraits: 520. Psychopsis limminghei. Orchidaceae. Bot. Mag. 22(1): 53–55.

Chase, M. W., K. Bremer, B. Bremer, M. Thulin, P. F. Stevens, D. E. Soltis, P. S. Soltis and J. Reveal. 2003. An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II. Bot. J. Linn. Soc. 141: 399–436.

Kelly, C. K., M. W. Chase, A. de Bruijn, M. F. Fay and F. I. Woodward. 2003. Temperature-based population segregation in birch. Ecol. Letters 6: 87–89.

Pridgeon, A. M., M. W. Chase, P. J. Cribb and F. N. Rasmussen. 2001, 2003. Genera Orchidacearum, vols. 2 and 3. Oxford: Oxford University Press.

Richardson, J. E., F. M. Weitz, M. F. Fay, Q. C. B. Cronk, H. P. Linder, G. Reeves and M. W. Chase. 2001. Rapid and recent origin of species richness in the Cape flora of South Africa. Nature 412: 181–183.

Wikström, N., V. Savolainen and M. W. Chase. 2001. Evolution of the angiosperms: Calibrating the family tree. Proc. Roy. Soc. Lond., Ser. B, Biol. Sci. 268: 2211–2220.

Zelenko, H. and M. W. Chase. 2002. Orchids: The Pictorial Encyclopedia of Oncidium, rev. ed. 2. New York.

George E. Schatz (1985)
Ph.D., University of Wisconsin-Madison, 1987
Curator, Africa and Madagascar Department, Missouri Botanical Garden; Adjunct Professor, University of Missouri, St. Louis
Annonaceae; flora of Madagascar

Selected Publications
Lowry, P. P., II, T. Haevermans, J.-N. Labat, G. E. Schatz, J.-F. Leroy and A.-E. Wolf. 2000. Endemic families of Madagascar. V. A synoptic revision of Eremolaena, Pentachlaena and Perrierodendron (Sarcolaenaceae). Adansonia, sér. 3, 22: 11–31.

Schatz, G. E. 2000. Endemism in the Malagasy tree flora. In: W. R. Lourenço and S. M. Goodman, eds. 2000. Diversity and Endemism in Madagascar. Paris. Pp. 1–10. [Mém. Soc. Biogéogr.]

Schatz, G. E. 2001. Generic Tree Flora of Madagascar. St. Louis and Kew.

Andrew J. Henderson (1986)
Ph.D., City University of New York, 1987
Curator, Institute of Systematic Botany, New York Botanical Garden
Systematics of palms

Selected Publications
Henderson, A. 1995. The Palms of the Amazon. New York: Oxford University Press.

Henderson, A. 2001. Bactris, Desmoncus. In: W. Stevens, C. Ulloa, A. Pool and O. Montiel. 2001. Flora de Nicaragua. 3 vols. St. Louis, Mo.: Missouri Botanical Garden Press. Vol 1. Pp. 199–202, 210–211. [Monogr. Syst. Bot. Missouri Bot. Gard. 85.]

Henderson, A. 2002. Evolution and ecology of palms. New York: New York Botanical Garden.

Henderson, A. 2002. Phenetic and phylogenetic analysis of Reinhardtia (Palmae). Amer. J. Bot. 89: 1491–1502.

Henderson, A. 2004. A multivariate analysis of Hyospathe (Palmae). Amer. J. Bot. 91: 953–965

Henderson, A. and F. Borchsenius, eds. 1999. Evolution, Variation, and Classification of Palms. New York. [Mem. New York Bot. Gard. 83.]

Henderson, A. and E. Ferreira. 2002. A morphometric study of Synechanthus (Palmae). Syst. Bot. 27: 693–702.

Henderson, A., G. Galeano and R. Bernal. 1995. A Field Guide to the Palms of the Americas. Princeton, N.J.: Princeton University Press.

Henderson, A. and R. Martins. 2002. Classification of specimens in the Geonoma stricta (Palmae) complex: The problem of leaf size and shape. Brittonia 54: 202–212.

John V. Freudenstein (1987)
Ph.D., Cornell University, 1992
Director, Ohio State University Herbarium
Systematics of Orchidaceae and Ericaceae; use of morphological, developmental and molecular approaches; theory of systematics

Selected Publications
Freudenstein, J. V. 2001. Corallorhiza. In: Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 4+ vols. New York and Oxford. Vol. 26.

Freudenstein, J. V. 2005. Characters, states and homology. Syst. Biol. 54: 965–973.

Freudenstein, J. V.,  C. van den Berg,  D. H. Goldman, P. J. Kores, M. Molvray and M. W. Chase.  2004.  An expanded plastid DNA phylogeny of Orchidaceae and analysis of jackknife branch support strategy.  Amer. J. Bot. 91: 149-157.

Freudenstein, J. V. and M. W. Chase.  2001.  Analysis of mitochondrial nad1b-c intron sequences in Orchidaceae: Utility and coding of length-change characters.  Syst. Bot. 26: 643-657.

Freudenstein, J. V. and F. N. Rasmussen. 1999. What does morphology tell us about orchid relationships? — A cladistic analysis. Amer. J. Bot. 86: 225–248.

Krosnick, S. E. and J. V. Freudenstein. 2005. Monophyly and floral character homology of Old World Passiflora (Subgenus Decaloba: Supersection Disemma). Syst. Bot. 30: 139–152.

van den Berg, C., D. H. Goldman, J. V. Freudenstein, A. M. Pridgeon, K. M. Cameron and M. W. Chase. 2005. An overview of the phylogenetic relationships within Epidendroideae (Orchidaceae) and recircumscription of Epidendreae and Arethuseae. Amer. J. Bot. 92: 613–624.

Clayton J. Antieau (1988)
Ph.D., University of Washington, 1987
Senior Wetland Ecologist and Botanist, Washington State Department of Transportation
Plant materials; native flora of the Pacific Northwest

Selected Publications
Antieau, C. J. 1992. Western serviceberry (and) Sedges. Washington Park Arbor. Bull. 55(3): 22, 28–29.

Antieau, C. 2000. Emerging themes in reed canarygrass (Phalaris arundinacea L.) management. Proceedings, American Water Resources Association 2000 Summer Specialty Conference (Riparian Ecology and Management in Multi-land Use Watersheds). August 28–31, Portland, Oregon.

Antieau, C. 2001. Biology, Ecology, and Management of Invasive Plants. In: D. L. Haase and R. Rose, eds. 2001. Conference Proceedings: Native Plant Propagation and Restoration Strategies. Sponsored by the Nursery Technology Cooperative and Western Forestry and Conservation Association. December 12–13, 2001.

Gaynor, P. E. and C. J. Antieau. 1989. The Right Tree Book. Seattle, Wash.

Halse, R. R., J. B. Glad and C. Antieau. 1992. Sidalcea nelsoniana. Madroño 39(3): 244.

Chester E. Wilson (1990)
Ph.D., State University of New York at Stony Brook, 1992
Professor, Biology Department, University of St. Thomas, Minnesota
Geographic variation and quantitative genetics of life history traits; physiological basis of such variation; spatial and demographic structure of plant populations

Selected Publications
Wilson, C. E. 1997. Theological implications of human evolutionary biology. In: S. Menssen, ed. 1997. Science and Theology. St. Paul, Minn.

Wilson, C. E. and J. Gurevitch. 1996. Plant size and spatial pattern in a natural population of Myosotismicrantha. J. Veg. Sci. 6: 847–852.

Wilson, C. E., R. R. Sokal and N. L. Oden. 1991. New genetic evidence supports the origin of agriculture in Europe by demic diffusion. Nature 351:143–145.

J. Travis Columbus (1992)
Ph.D., University of California, Berkeley, 1996
Research scientist, Rancho Santa Ana Botanic Garden, Claremont, California; Assistant Professor of Botany, Claremont Graduate University
Systematics of grasses (Gramineae), in particular subfamily Chloridoideae

Selected Publications
Columbus, J. T. 1999. An expanded circumscription of Bouteloua (Gramineae: Chloridoideae): New combinations and names. Aliso 18: 61–65.

Columbus, J. T. 1999. Morphology and leaf blade anatomy suggest a close relationship between Bouteloua aristidoides and B. (Chondrosium) eriopoda (Gramineae: Chloridoideae). Syst. Bot. 23: 467–478.

Columbus, J. T., H. L. Bell, R. Cerros-Tlatilpa, M. P. Griffith and J. M. Porter. 2002. Schaffnerella rediscovered! (Gramineae, Chloridoideae).  Aliso 20: 45–50.

Columbus, J. T., M. S. Kinney, M. E. Siqueiros D. and J. M. Porter. 2000. Phylogenetics of Bouteloua and relatives (Gramineae: Chloridoideae): Cladistic parsimony analysis of internal transcribed spacer (nrDNA) and trnL-F (cpDNA) sequences. In: S. W. L. Jacobs and J. Everett, eds. 2000. Grasses: Systematics and Evolution. Melbourne, Australia. Pp. 189–194.

Columbus, J. T. and N. F. Refulio-Rodriguez.  2004. The chromosome number of Schaffnerella gracilis (Gramineae, Chloridoideae).  Aliso 21: 31–32.

Kinney, M. S., J. T. Columbus and E. A. Friar.  2003. Molecular evolution of the maize sex-determining gene TASSELSEED2 in Bouteloua (Poaceae). Molec. Phylogen. Evol. 29: 519–528.

Roalson, E. H., J. T. Columbus and E. A. Friar.  2001. Phylogenetic relationships in Cariceae (Cyperaceae) based on ITS (nrDNA) and trnT-L-F (cpDNA) region sequences: Assessment of subgeneric and sectional relationships in Carex with emphasis on section Acrocystis. Syst. Bot. 26: 318–341.

Kathleen M. Pryer (1994)
Ph.D., Duke University, 1995
Assistant Curator, Pteridophytes, Department of Botany, Field Museum; Lecturer, Committee on Evolutionary Biology, University of Chicago
Phylogenetics of ferns and basal tracheophytes; systematics of basal fern families (Marsileaceae, Hymenophyllaceae); ontogeny and phylogeny; morphometrics

Selected Publications
Pryer, K. M. 1993. Gymnocarpium. In: Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 4+ vols. New York and Oxford. Vol. 2. Pp. 258–262.

Pryer, K. M. 1999. Phylogeny of Marsileaceous ferns and relationships of the fossil Hydropteris pinnata reconsidered. Int. J. Pl. Sci. 160: 931–954.

Pryer, K. M., H. Schneider, A. R. Smith, R. Cranfill, P. G. Wolf, J. S. Hunt and S. D. Sipes. 2001. Horsetails and ferns are a monophyletic group and the closest living relatives to seed plants. Nature 409: 618–622.

Pryer, K. M., H. Schneider, E. A. Zimmer and J. Banks. 2002. Deciding among green plants for whole genome studies. Trends Pl. Sci. 7: 550–554 (cover).

Pryer, K. M., A. R. Smith, J. S. Hunt and J.-Y. Dubuisson. 2001. rbcL data reveal two monophyletic groups of filmy ferns (Filicopsida: Hymenophyllaceae). Amer. J. Bot. 88: 1118–1130.

Pryer, K. M., E. Schuettpelz, P. G. Wolf, H. Schneider, A. R. Smith, R. Cranfill. 2004. Phylogeny and evolution of ferns (monilophytes) with a focus on the early leptosporangiate divergences. Amer. J. Bot. 91: 1582–1598.

Schneider, H., E. Schuettpelz, K. M. Pryer, R. Cranfill, S. Magallón, R. Lupia. 2004. Ferns diversified in the shadow of angiosperms. Nature 428: 553–557.

Schuettpelz, E. and K. M. Pryer. 2006. Reconciling extreme branch length differences: decoupling time and rate through the evolutionary history of filmy ferns. Syst. Biol. 55: 485–502.

Smith, A. R., H. Tuomisto, K. M. Pryer, J. S. Hunt and P. G. Wolf. 2001. A second species of Metaxya and unexpected genetic variation in the previously monospecific tree fern family Metaxyaceae. Syst. Bot. 26: 480–486.

Wikström, N. and K. M. Pryer. 2005. Incongruence between primary sequence data and the distribution of a mitochondrial atp1 group II intron among ferns and horsetails. Molec. Phylogen. Evol. 36: 484–493.

Amy J. Litt (1996)
Ph.D., City University of New York, 1999
Director of Plant Genomics and Cullman Curator, New York Botanical Garden
Flowering plant morphology and the molecular mechanisms underlying flower and fruit development

Selected Publications
Hileman, L. C., S. Drea, G. de Martino, A. Litt, and V. F. Irish. 2005. Virus induced gene silencing is an effective tool to assay gene function in the basal eudicot species Papaver somniferum (opium poppy). Plant J. 44(2): 334–341.

Irish, V. F., and A. Litt. 2005. Flower development and evolution: Gene duplication, diversification, and redeployment. Curr. Opin. Genet. Developm. 15(4): 454–460.

Liu, Y., N. Nakayama, M. Schiff, A. Litt, V. F. Irish and S. P. Dinesh-Kumar. 2004. Virus induced gene silencing of a DEFICIENS ortholog in Nicotiana benthamiana. Plant Mol. Biol. 54: 701–711.

Litt, A. Vochysiaceae and Euphroniaceae. 2004. In: N. Smith, S. A. Mori, A. Henderson, D. W. Stevenson and S. Heald, eds. 2004. Flowering Plants of the Neotropics. Princeton.

Litt, A. and M. Cheek. 2002. Korupodendron songweangum, a new genus and species of Vochysiaceae form West-Central Africa. Brittonia 54: 13-17.

Litt, A. and V. F. Irish. 2003. Duplication and divergence in the APETAL1/FRUITFULL gene lineage: Implications for the evolution of floral development programs. Genetics 165: 821–833.

Litt, A. and D. W. Stevenson. 2003. Floral morphology of Vochysiaceae I. Position of the single fertile stamen. Amer. J. Bot. 90: 1533–1547

Litt, A. and D. W. Stevenson. 2003. Floral morphology of Vochysiaceae II. Structure of the gynoecium. Amer. J. Bot. 90: 1548–1559.

Sytsma, K. J., A. Litt., M. Zjhra, J. C. Pires, M. Nepokroeff, E. Conti, J. Walker and P.Wilson. 2004. Clades, clocks, and continents: Historical and biogeographical analysis of Myrtaceae, Vochysiaceae, and relatives in the southern hemisphere. Int. J. Pl. Sci. 165(4 Suppl.): S85–S105.

J. Chris Pires (1998)
Ph.D., University of Wisconsin, Madison, 2000
Assistant Professor of Biological Sciences, University of Missouri, Columbia
Systematics of Brodiaea (Themidaceae); phylogenetic relationships among monocots; history of botany

Selected Publications
Bogler, D. J., J. C. Pires and J. Francisco-Ortega. 2006. Phylogeny of Agavaceae based on ndhF, rbcL, and ITS rDNA: Implications of molecular data for classification. Aliso 22: 313–328.

dePamphilis, C., R. deSalle, J. J. Doyle, J. A. Eisen, X. Gu, J. Harshman, R. K. Jansen, E. A. Kellogg, E. V. Koonin, B. D. Mishler, H. Philippe, J. C. Pires, Y. L. Qiu, S. Y. Rhee, K. Sjolander, D. E. Soltis, P. S. Soltis, D. W. Stevenson, K. Wall, T. Warnow and C. Zmasek. 2006. Taking the first steps towards a standard for reporting on phylogenies: minimal information about a phylogenomic analysis (MIAPA). O. M. I. C. S. 10: 231–237.

Graham, S. W., J. M. Zgurski, M. A. McPherson, D. M. Cherniawsky, J. M. Saarela, E. S. C. Horne, S. Y. Smith, W. A. Wong, H. E. O’Brien, V. L. Biron, J. C. Pires, R. G. Olmstead, M. W. Chase and H. S. Rai. 2006. Robust inference of monocot deep phylogeny using an expanded multigene plastid data set. Aliso 22: 3–21.

Givnish, T. J., J. C. Pires, S. W. Graham, M. A. McPherson, L. M. Prince, T. B. Patterson, H. S. Rai, E. S. Roalson, T. M. Evans, W. J. Hahn, K. C. Millam, A. W. Meerow, M. Molvray, P. J. Kores, H. E. O’Brien, J. C. Hall, W. J. Kress and K. J. Sytsma. 2006. Phylogeny of the monocots based on the highly informative cpDNA gene ndhF: Evidence for widespread concerted convergence. Aliso 22: 28–51.

Kovarik, A., J. C. Pires, A. R. Leitch, K. Y. Lim, A. Sherwood, R. Matyusek, J. Rocca, D. E. Soltis and P. S Soltis. 2005. Rapid concerted evolution in two allopolyploids of recent and recurrent origin. Genetics 169: 931–944.

Lukens, L. N., J. C. Pires, E. Leon, R. D. Vogelzang, L. Oslach and T. C. Osborn. 2006. Patterns of sequence loss and cytosine methylation within a population of newly resynthesized Brassica napus. Pl. Physiol. (Lancaster) 140: 336–348.

Pires, J. C. 2001. Bloomeria, Brodiaea, Dichelostemma, Triteleia and Triteleiopsis. In: Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 4+ vols. New York and Oxford. Vol. 26.

Pires, J. C., K. Y. Lim, A. Kovarík, R. Matyásek, A. Boyd, A. R. Leitch, I. J. Leitch, M. D. Bennett, P. S. Soltis and D. E. Soltis. 2004. Molecular cytogenetic analysis of recently evolved Tragopogon (Asteraceae) allopolyploids reveal a karyotype that is additive of the diploid progenitors. Amer. J. Bot. 91: 1022–1035.

Pires, J. C., J. Zhao, M. E. Schranz, E. J. Leon, P. A. Quijada, L. N. Lukens and T. C. Osborn. 2004. Flowering time divergence and genomic rearrangements in resynthesized Brassica polyploids (Brassicaceae). Biol. J. Linn. Soc. 82(4): 665–674.

Reveal, J. and J. C. Pires. 2001. Androstephium and Muilla. In: Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 4+ vols. New York and Oxford. Vol. 26.

Anne Katherine Hansen (2000)
Ph.D., University of Texas at Austin, 2004
Postdoctoral Fellow, Integrative Biology, University of Texas at Austin
Passiflora with a special emphasis on the large group of species with a basic chromosome number of nine

Selected Publications
Hansen, A. K. 2002. Passiflora markiana, a new species of Passifloraceae from Ecuador. Lundellia 5: 44–46.

Andrew L. Hipp (2002)
Ph.D., University of Wisconsin—Madison, 2004
Plant Systematist & Herbarium Curator, Morton Arboretum
Phylogenetic and taxonomic study of Carex section Ovales

Selected Publications
Berry, P. E., A. L. Hipp, K. J. Wurdack, B. Van Ee and R. Riina. 2005. Molecular phylogenetics of the giant genus Croton (Euphorbiaceae sensu stricto) using ITS and TrnL-F DNA sequence data. Amer. J. Bot. 92(9): 1520–1534.

Hipp, A. L. 1998. Checklist of carices for prairies, savannas and oak woodlands of southern Wisconsin. Trans. Wisconsin Acad. Sci. 86: 77–99.

Hipp, A. L., J. C. Hall and K. J. Sytsma. 2004. Congruence versus phylogenetic accuracy: Revisiting the Incongruence Length Difference (ILD) Test. Syst. Biol. 53: 81–89.

Hipp, A. L., A. A. Reznicek, P. E. Rothrock and J. A. Weber. 2006. Phylogeny and classification of Carex section Ovales (Cyperaceae). Int. J. Pl. Sci. 167(5): 1029–1048.

Hipp, A. L., P. E. Rothrock, A. A. Reznicek and P. E. Berry. 2006. Changes in chromosome number associated with speciation in sedges: A phylogenetic study in Carex section Ovales (Cyperaceae) using AFLP data. Aliso 23: 193–203.

Luo, R., A. L. Hipp and B. Larget. 2007. A Bayesian model of AFLP marker evolution and phylogenetic inference. Statistical Applications in Genetics and Molecular Biology 6(1): Article 11.

Van Ee, B., N. Jelinski, P. E. Berry and A. L. Hipp. 2006. Population genetics and phylogeography of Croton alabamensis, a rare shrub disjunct between Texas and Alabama, based on DNA sequences and AFLP data. Molec. Ecol. 15: 2735–2751.

Sarah E. Edwards (2003)
Ph.D., University of London, 2006
Research Fellow, Centre for Pharmacognosy and Phytotherapy, School of Pharmacy, University of London
Medical ethnobotany

Selected Publications
Edwards, S. E. and M. Heinrich. 2003. Redressing cultural erosion—how relational databases can help relate ethnobiological knowledge. South African J. Bot. 69(2): 224–268.

Edwards, S. E. and M. Heinrich. 2005. Integrating Wik and Kugu (Australian Aboriginal) phytotherapeutic knowledge with Western science. Proceedings of the 5th European Colloquium on Ethnopharmacology 8–10 May 2003. Revista de Fitoterapia 5.

Edwards, S. E. and M. Heinrich. 2006. Redressing Cultural Erosion and Ecological Decline in a Far North Queensland Aboriginal Community (Australia): The Aurukun Ethnobiology Database Project. Environment, Sustainability and Development  8: 569–583.

Edwards, S. E., S. Nebel and M. Heinrich. 2005. Questionnaire surveys: Methodological and epistemological problems for field-based ethnopharmacologists. J. Ethnopharmacol. 100(1–2): 30–36.

Danica T. Harbaugh (2004)
Ph.D., University of California, Berkeley, 2007
Phylogenetic and ethnobotanical study of Santalum (Santalaceae)

Selected Publications
Harbaugh, D. T. 2001. The use of algae to indicate eutrophication in Cook’s and Opunohu Bays, Moorea, French Polynesia. Berkeley Scientific Journal 5(2): 123–128.

Harbaugh, D. T. and B. G. Baldwin. 2007. Phylogeny and biogeography of the sandalwoods (Santalum, Santalaceae): Repeated dispersals throughout the Pacific. Amer. J. Bot. 94(6): 1030–1042.

Ricarda Riina (2005)
Ph.D., University of Wisconsin—Madison, 2006
Postdoctoral Fellow, Department of Ecology and Evolutionary Biology, University of Michigan
Phylogenetic and taxonomic study of Croton sect. Cyclostigma (Euphorbiaceae)

Selected Publications
Berry, P. E., A. L. Hipp, K. J. Wurdack, B. Van Ee and R. Riina. 2005. Molecular phylogenetics of the giant genus Croton (Euphorbiaceae sensu stricto) using ITS and TrnL-F DNA sequence data. Amer. J. Bot. 92(9): 1520–1534.

Caruzo, M. B. R., R. Riina, I. Cordeiro and P. E. Berry. 2008. Croton campanulatus (Euphorbiaceae s.s.), a new species from the Brazilian Atlantic rain forest. Brittonia 60: 261-264.

Riina, R., P. E. Berry and B. W. van Ee. In press. Molecular phylogenetics of the dragon’s blood Croton section Cyclostigma (Euphorbiaceae): a polyphyletic assemblage unraveled. Syst. Bot.

Wiedenhoeft, A.C., R. Riina and P.E. Berry. 2009. "Ray-intrusive" laticifers in species of Croton section Cyclostigma (Euphorbiaceae). IAWA Journal 30: 135-148.

Eric Schuettpelz (2006)
Ph.D., Duke University, 2007
Assistant Professor, Department of Biology and Marine Biology, University of North Carolina Wilmington
Evolution and diversification of epiphytic ferns

Selected Publications
Pryer, K. M., E. Schuettpelz, P. G. Wolf, H. Schneider, A. R. Smith, R. Cranfill. 2004. Phylogeny and evolution of ferns (monilophytes) with a focus on the early leptosporangiate divergences. Amer. J. Bot. 91: 1582–1598.

Schneider, H., E. Schuettpelz, K. M. Pryer, R. Cranfill, S. Magallón, R. Lupia. 2004. Ferns diversified in the shadow of angiosperms. Nature 428: 553–557.

Schuettpelz, E. and K. M. Pryer. 2006. Reconciling extreme branch length differences: decoupling time and rate through the evolutionary history of filmy ferns. Syst. Biol. 55: 485–502.

Smith, A. R., K. M. Pryer, E. Schuettpelz, P. Korall, H. Schneider and P. G. Wolf. 2006. A classification for extant ferns. Taxon 55: 705–731.

Jimmy Triplett (2007)
Ph.D., Iowa State University, 2008
Assistant Professor and Herbarium Curator, Department of Biology, Jacksonville State University
Phylogenetic study of the woody bamboo genera Arundinaria, Pleioblastus and Pseudosasa in North America and East Asia

Selected Publications
Clark, L. G. and J. K. Triplett. 2007. Arundinaria Michx. In: Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 12+ vols. New York and Oxford. Vol. 24. Pp. 17–20.

Triplett, J. K. and L. G. Clark. 2010. Phylogeny of the temperate bamboos (Poaceae: Bambusoideae) with an emphasis on Arundinaria and allies. Syst. Bot. 35(1): 102-120.

Triplett, J. K., K. Oltrogge, and L. G. Clark. 2010. Phylogenetic relationships and natural hybridization among the North American woody bamboos (Poaceae: Bambusoideae: Arundinaria). Amer. J. Botany 97(3): 471-492.

Zeng, C.-X., Y.-X. Zhang, J. K. Triplett, J.-B. Yang, L.-M. Gao and D. Z. Li. 2010. Phylogeny of the tribe Arundinarieae (Gramineae: Bambusoideae) with an emphasis on Chinese species: evidence from eight non-coding plastid regions. Molec. Phylogen. Evol. 56(2): 821-839.

Dylan O. Burge (2008)
Ph.D., Duke University, 2011
Postdoctoral researcher, National Herbarium of New South Wales, Royal Botanic Gardens, Sydney.
Integrative research study of the genus Ceanothus.

Selected Publications
Burge, D. O. 2005. Taxonomy, biology, and distribution of seed harvesting ants in the Pheidole californica complex (Hymenoptera: Formicidae). Journal of Hymenoptera Research 14(2): 137–150.

Burge, D. O. and S. R. Manchester. 2008. Fruit morphology, fossil history, and biogeography of Paliurus (Rhamnaceae). Int. J. Pl. Sci. 169(8): 1066–1085.

Burge, D. O. and W. R. Barker. 2010. Evolution of nickel hyperaccumulation by Stackhousia tryonii (Celastraceae), a serpentinite-endemic plant from Queensland, Australia. Austral. Syst. Bot. 23: 415-430.

Burge, D. O. and P. S. Manos. 2011. Edaphic ecology and genetics of the gabbro-endemic shrub Ceanothus roderickii (Rhamnaceae). Madroño 58(1): 1-21.

The Lawrence Award was not presented in 2009.

Christine D. Bacon (2010)
Ph.D., Colorado State University
Integrative research study of the genus Pritchardia.

Selected Publications
Alexander, P. J., G. Rajanikanth, C. D. Bacon and C. D. Bailey. 2007. Recovery of plant DNA using a reciprocating saw and silica-based columns. Molec. Ecol. Notes 7:5-9.

Bacon, C. D. 2007. Evaluating Chamaedorea alternans. Palms 51:147-150.

Bacon, C. D. 2007. Towards understanding species relationships in Livistoneae. Palmateer 27:17-19.

Bacon, C. D. and C. D. Bailey. 2006. Taxonomy and conservation: A case study from Chamaedorea alternans. Ann. Bot. (Oxford) 98:755-763.

Bacon, C. D., F. A. Feltus, A. H. Patterson and C. D. Bailey. In Press. Novel low-copy nuclear genes in palms (Arecaceae). Molec. Ecol. Notes

Cibrián-Jaramillo, A., C. D. Bacon, M. M. Thomas, N. C. Garwood, S. J. Russell, C. D. Bailey, R. DeSalle and S. G. M. Bridegwater. In Press. Genetic connectivity across scales: Patterns of genetic differentiation of the understory palm Chamaedorea ernesti-augustii. Molec. Ecol.

Lohithaswa, H. C., F. A. Feltus, H. P. Singh, C. D. Bacon, C. D. Bailey and A. H. Patterson. 2007. Leveraging the rice genome sequence for monocot comparative and translational genomics. Theor. Appl. Genet. 115: 237-243.

Brian Sidoti (2011)
Ph.D., University of Wisconsin
Integrative study of the Tillandsia fasciculata complex.

The Lawrence Award was not presented in 2012.

 




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