Below are downloads for all image files used by Huff et al. (2003) and Royer et al. (2005). The three sites marked with asterisks (*) were used by Huff et al.; Royer et al. used all 17 sites. Sites are arranged from coldest to warmest. For further details of sites, see Royer et al. paper. The total size of the individual image files for each site is noted. The components of the file names are as follows, from left to right: site abbreviation, herbarium number, species name, and photo number (except for ANF, York, and BCI; for these sites, see tab-delimited text file for converting photo number to species name). Nomenclature authorities follow Croat (1978) for Barro Colorado Island and USDA (2004) for all other sites. Some synonymies remain in parentheses to facilitate reconciliation with labels on herbarium sheets. All images were taken with a Nikon 995 Coolpix camera (2048 x 1536 pixels), and are completely unprocessed and in jpeg format; all images require some sharpening and contrast adjustment. Scale bar units = 1 cm.

You are welcome to use these images and data for your own research. We only ask that you let us know (Dana Royer or Peter Wilf) and acknowledge us in any resulting publications. Processed images, which include clean backgrounds and tooth selection, are available upon request. Some specimens from Barro Colorado Island are provided courtesy of the Smithsonian Institution, as described in Royer et al. (2005). Reproduction of these and other images posted here is prohibited for commercial use.

Cited Literature
Croat TB. 1978. Flora of Barro Colorado Island. Stanford University Press, Stanford, California, USA.
Huff PM, Wilf P, Azumah EJ. 2003. Digital future for paleoclimate estimation from fossil leaves? Preliminary results. Palaios 18: 266-274.
USDA, NRCS. 2004. The PLANTS database, version 3.5 (plants.usda.gov; accessed August 2004). National Plant Data Center, Baton Rouge, Louisiana 70874-4490, USA.
Royer DL, Wilf P, Janesko DA, Kowalski EA, Dilcher DL. 2005. Correlations of climate and plant ecology to leaf size and shape: potential proxies for the fossil record. American Journal of Botany 92: 1141-1151.

Hubbard Brook Experimental Forest (HB) (31 Mb)
*Allegheny National Forest (ANF) (34 Mb)
Harvard Forest (HF) (97 Mb)
E. N. Huyck Preserve and Biological Research Station (HP) (49 Mb)
Institute for Ecosystem Studies (IES) (71 Mb)
Cockaponset State Forest (CP) (37 Mb)
Hawk Mountain Sanctuary (HM) (43 Mb)
*York County (York) (39 Mb)
Smithsonian Environmental Research Center (SERC) (38 Mb)
Duke Forest (DF) (105 Mb)
Little Pee Dee State Park (PD) (57 Mb)
Big Hammock Natural Area and Wildlife Management Area (BH) (46 Mb)
Dilcher's Woods, lowland (DWl) (37 Mb)
Dilcher's Woods, upland (DWu) (45 Mb)
Archbold Biological Station (AB) (77 Mb)
Florida Panther National Wildlife Refuge (PR) (35 Mb)
*Barro Colorado Island (BCI) (96 Mb)

Other supplementary information