8:00 AM: McCarthy, Heather^*,1, Oren, Ram¹, Finzi, Adrian², Ellsworth, David³, Kim, Hyun-Seok¹, Johnsen, Kurt ⁴, ¹ Duke University, Durham, NC, USA² Boston University, Boston, MA, USA³ University of Michigan, Ann Arbor, MI, USA⁴ USDA-Forest Service-Southern Research Station, Research Triangle Park, NC, USA, Temporal dynamics and spatial variability in the enhancement of canopy leaf area under elevated CO₂ .

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8:20 AM: Muhaidat, Riyadh^*,1, Sage, Rowan¹, Dengler, Nancy¹, ¹ University of Toronto, Toronto, ON, Canada, Identification of new C3-C4 intermediates species in the genus Heliotropium L. (Boraginaceae).

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8:40 AM: Nelson, Elizabeth^*,1, Sage, Rowan¹, ¹ University of Toronto, Toronto, ON, Canada, Ecophysiology of Crassulacean acid metabolism (CAM).

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9:00 AM: Gutschick, Vincent^*,1, Maxwell, Connie², Linnell, Anna¹, Logan, Carla¹, Brown, Karen^{3, 4}, Anchondo, Alvaro⁵, ¹ Dept. of Biology, Las Cruces, NM, USA² USDA-ARS, Las Cruces, NM, USA³ Desert Research Institute, Las Vegas, NV, USA⁴ Los Alamos National Laboratory, Los Alamos, NM, USA⁵ Facultad de Ciencias Agricolas y Forestales, Delicias, Chih, Mexico, Estimating leaf area on individual plants by image analysis.

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9:20 AM: Sherrard, Mark^*,1, Maherali, Hafiz¹, ¹ University of Guelph, Guelph, Ontario, Canada, Decreased photosynthetic capacity is adaptive in response to drought: Evidence from natural selection on leaf physiology in contrasting wet and dry environments.

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9:40 AM: , BREAK.

9:50 AM: Sack, Lawren^{*,1, 2}, Dietrich, Elizabeth², Sanchez, David³, Streeter, Christopher², Holbrook, N. Michele⁴, ¹ Department of Botany, University of Hawai'i, Honolulu, Hawai'i, USA² Harvard Forest, Petersham, Massachusetts, USA³ Centro de Ciencias Medioambientales, Madrid, Spain⁴ Department of Organismic and Evolutionary Biology, Cambridge, Massachusetts, USA, Palmate versus pinnate leaf venation systems: Do they diverge in function?

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10:30 AM: Kikuzawa, Kihachiro^{*,1, 2}, Lechowicz, Martin^{1, 3}, ¹ Forest Biology, Graduate School of Agriculture, Kyoto, Japan² Ishikawa Prefectural University, Nonoichi, Ishikawa, Japan³ Department of Biology, McGill University, Montreal, Quebec, Canada, Functional leaf longevity: A refined perspective on leaf longevity and its ecological significance.

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10:50 AM: Hughes, Nicole^*,1, Neufeld, Howard¹, Burkey, Kent², ¹ Appalachian State University, Boone, NC, USA² USDA-ARS Air Quality Research Unit, Raleigh, NC, USA, Functional role of anthocyanins in high light winter leaves of the evergreen herb, Galax urceolata.

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11:10 AM: Brodersen, Craig ^*,1, Vogelmann, Thomas ¹, ¹ University of Vermont, Burlington, VT, USA, Processing of diffuse and collimated light in leaves with glabrous or lenticular epidermal cell shape.

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