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Bioimages on portable devices (iPods, mp3 players):
Southeastern U.S. trees and woody plants

With the availability of portable devices having color displays and large storage capacity, it is now possible to carry a very large number of reference images with you in the field.  The following downloadable files contain medium resolution (web-sized) images of features of trees and woody plant species from the southeastern U.S. (i.e. the species featured on the southeastern U.S. trees and woody plants page).  The images are grouped alphabetically by scientific name and contain all of the images that are in the database for a particular species (i.e. all those seen on the corresponding Bioimages species page).  So for example, if you wanted to download all of the images for southeastern US oaks, select the file trees-q.exe (for the genus Quercus). 

Note: These files can be as large as 40 Mb, so downloading is not recommended unless you have a high-speed Internet connection (cable, DSL, or direct network connection). A modem download could take hours. 

Instructions for PCs:

1. Download the compressed .exe file to your desktop or another location on your hard drive by clicking on the appropriate link.  When your web browser asks what to do with the file, select Download to hard drive. 

2. The downloaded file is an executable zip archive.  Although it doesn't contain any viruses, if you are paranoid like me you can scan it for viruses to make sure before running the program.  Double-click on the executable file to begin the extraction process.

3. The default "unzip" location is the root directory of your hard drive (c:\).  If you prefer another location, enter it in the text box.  Then click on the Unzip button.

4. The images will be contained in a folder having the same name as the .exe file that you downloaded.  Once you have the image folder where you want it, you can delete the .exe file to save space on your hard drive.

5. Copy the files to your portable device as you would other pictures.  The image names contain the first 6 letters of the genus and the first 8 letters of the species, followed by a two letter abbreviation of the feature (wp=whole plant, br=bark, lf=leaf, tw=twig, fl=flower, fr=fruit, co=cone, ar=areole, ap=apex).  The exact mechanism needed to transfer the images will depend on the portable device.  My mp3 player (a Sansa e250) requires the use of the Sansa Media Converter software that came with the player.  For iPods, use the Itunes software to make the transfer (I don't have an iPod, so I can't give exact instructions). 

Available images (last updated 2006 Oct 11):
(367 images, 27.2 Mb)
(75 images, 4.7 Mb)
(528 images, 39.6 Mb)
(200 images, 14.8 Mb)
(219 images, 15.4 Mb)
(252 images, 20.7 Mb)
(210 images, 15.9 Mb)
(120 images, 9.7 Mb)
(366 images, 32.9 Mb)
(354 images, 29.6 Mb)
(258 images, 21.4 Mb)
(207 images, 14.2 Mb)
(159 images, 13.8 Mb)
(128 images, 9.6 Mb)

Further comments:

This is a somewhat experimental venture and I am very interested in feedback about how it works on various players, particularly iPods.  Please send feedback to me at  

I do not know how to create self-extracting archives that can be used by Macs.  If you know how, please let me know.

Eventually I would like to provide the images rotated so that they are all in the same orientation (e.g. portrait for the Sansa or landscape for Ipods).  This would make the displayed size of the image larger.  I will think about doing this if people find it useful to use the images on portable devices.

I can also make other groups of species available, so if you have a particular family of herbs, etc. that you would like to see included, please let me know.