Hughes NM, Neufeld HS, Burkey KO. 2005. Functional role of anthocyanins in high-light winter leaves of the evergreen herb, Galax urceolata. New Phytologist 168: 575-587.pdf

Hughes NM, Smith WK. 2007. Attenuation of incident light in Galax urceolata (Diapensiaceae): concerted influence of adaxial and abaxial anthocyanic layers on photoprotection. American Journal of Botany 94: 784-790.pdf

Hughes NM, Morley CB, and Smith WK. 2007. Coordination of anthocyanin decline and photosynthetic maturation in developing leaves of three deciduous tree species. New Phytologist 175: 675-685.pdf

Hughes NM, and Smith WK. 2007. Seasonal photosynthesis and anthocyanin production in ten broadleaf evergreen species. Functional Plant Biology 34: 1072-1079.pdf

Hughes NM, Vogelmann TC, and Smith WK. 2008. Optical effects of abaxial anthocyanin on absorption of red light by understory species: re-visiting the back-scatter hypothesis. Journal of Experimental Botany 59(12): 3435-3442.pdf

Smith WK, and Hughes NM. 2009.  Progress in coupling plant form and photosynthetic function. Castanea 74: 1-26. pdf

Hughes NM, Johnson DM, Akhalkatsi M, and Abdaladze O. 2009. Characterization of Betulia litwinowii seedling microsite at the alpine-treeline ecotone, Caucasus Mountains, Georgia. Arctic, Alpine, and Antarctic Research 41: 112-118. pdf

Archetti M, Doring TF, Hagen SB, Hughes NM, Leather SR, Lee DW, Lev-Yadun S, Manetas Y, Ougham HJ, Schaberg PG, Thomas H. 2009. Unravelling the evolution of autumn colours: an interdisciplinary approach. Trends in Ecology and Evolution 24: 166-173.

Letter Response: Archetti M, Doring TF, Hagen SB, Hughes NM, Leather SR, Lee DW, Lev-Yadun S, Manetas Y, Ougham HJ, Schaberg PG, Thomas H. 2009. Ultraviolet reflectance in autumn leaves and the un-naming of colours. Trends in Ecology and Evolution 24: 237-238.pdf

Hughes NM, Gould KS, and Smith WK. 2010. Red (anthocyanic) leaf margins do not correspond to increased phenolic content in New Zealand Veronica spp. Annals of Botany 105: 647-654. pdf

Hughes NM, Reinhardt K, Gierardi A, Feild TS, and Smith WK. 2010. Association between winter anthocyanin production and drought stress in angiosperm evergreen species. Journal of Experimental Botany 61(6):1699-1709. pdf

Hughes NM. 2011. Review: Winter leaf reddening in angiosperm “evergreen” species. New Phytologist 190: 573-581. pdf

Hughes NM, Burkey KO, Cavender-Bares J, and Smith WK.  2012. Seasonal xanthophyll cycle and antioxidant properties of red (anthocyanic) and green (acyanic) angiosperm evergreen species. Journal of Experimental Botany 63: 1895-1905. pdf

Cooney LJ, van Klink J,  Hughes NM, Perry N, Schaefer HM, Menzies I, Gould KS. 2012. Red leaf margins indicate increased polygodial content and function as visual signals to reduce herbivory in Pseudowintera colorata. New Phytologist 194: 488-497. pdf

Hughes NM, Carpenter KL, Cannon JG. 2013. Estimating contribution of anthocyanin pigments to osmotic adjustment during winter leaf reddening. Journal of Plant Physiology 170: 230-233. pdf

Sanchez A,  Hughes NM, Smith WK. 2013. Autumn leaf senescence coincides with declining water use efficiency in five deciduous tree species, North Carolina piedmont. International Journal of Plant Biology International Journal of Plant Biology 4: e7.

Berry CZ, Hughes NM, Smith WK. 2014. Cloud immersion: an important water source for spruce and fir saplings in the southern Appalachian Mountains. Oecologia 174(2):319-26.

Hughes NM, Carpenter KL, Keidel TS, Miller CN, and Smith WK. 2014. Photosynthetic costs and benefits of adaxial versus abaxial anthocyanins in the understory environment. Planta 240(5):971-81.

Carpenter KL, Keidel TS, Pihl MC,  Hughes NM. 2014. Support for a photoprotective function of winter leaf reddening in nitrogen-deficient individuals of Lonicera japonica. Molecules 19: 17810-17828.

Hughes NM,  Carpenter KL, Cook DK, Keidel Jr. TS, Miller CN, Neal JL, Sanchez A, Smith WK. 2015. Effects of cumulus clouds on microclimate and shoot-level photosynthetic gas exchange in Picea engelmannii and Abies lasiocarpa at treeline, Medicine Bow Mountains, Wyoming, USA. Agricultural and Forest Meteorology 201: 26-37.

Sanchez A, Hughes NM, Smith WK. 2015. Importance of natural cloud regimes to ecophysiology in the alpine species,  Caltha leptosepala and Arnica parryi, Snowy Range Mountains, southeast Wyoming, USA. Functional Plant Biology 42: 186-197.

Hughes NM, Lev-Yadun S. 2015. Red/purple leaf margin coloration: Potential ecological and physiological functions. Environmental and Experimental Botany 119: 27-39.

Sanchez A,  Hughes NM, Smith WK. 2016. Leaf/shoot level ecophysiology in two broadleaf and two needle-leaf species under representative cloud regimes at the alpine treeline ecotone. Journal of Plant Ecology. doi: 10.1093/jpe/rtw019

Hernandez, M, Bayeur N, Coley H, Hughes NM. 2016. Clouds homogenize shoot temperature, evapotranspiration, and photosynthesis within crowns of Abies fraseri. Oecologia (in press)

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