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<h1>Digital Representations of Tree Species Range Maps from "Atlas of United States Trees" by Elbert L. Little, Jr. (and other publications)</h1>
<h3>Background</h3>
<img src="/web/20170127093428im_/https://gec.cr.usgs.gov/data/little/usfs_shield.gif" alt="U.S. Forest Service logo" border="0" width="46" height="44" align="LEFT" halign="CENTER">
Maps of the ranges of tree species in North America compiled by Elbert Little, of the U.S. Department of Agriculture, Forest Service, and others (see references below) were digitized for use in USGS' <a href="https://web.archive.org/web/20170127093428/http://pubs.usgs.gov/pp/p1650-a/">vegetation-climate modeling</a> studies. These digital map files are available here for download. Updated versions of some of these maps are also available from the U.S. Forest Service <a href="https://web.archive.org/web/20170127093428/http://www.fs.fed.us/nrs/atlas/littlefia/">Forest Inventory Analysis</a> program.<p>
The maps are available in ArcView® shapefile format. Geographic ranges are represented as polygons. There is one shapefile (with associated data files) for each tree species. At present, not all of the maps have been digitized, quality checked, and made available here, but we plan to make most or all of the digitized maps available over time.</p>
<p>
<b>NOTE ABOUT SCIENTIFIC NAMES:</b> We are aware that the scientific names of some taxa have changed since these atlases were published. Because our intent is to digitally reproduce the maps in their original form, we refer to each tree species by the scientific name as published in the original reference.</p>
<p>
</p>
<h3>References</h3>
Critchfield, W.B., and Little, E.L., Jr., 1966, Geographic distribution of the pines of the world: U.S. Department of Agriculture Miscellaneous Publication 991, p. 1-97.<p>
Little, E.L., Jr., 1971, Atlas of United States trees, volume 1, conifers and important hardwoods: U.S. Department of Agriculture Miscellaneous Publication 1146, 9 p., 200 maps.</p>
<p>
Little, E.L., Jr., 1976, Atlas of United States trees, volume 3, minor Western hardwoods: U.S. Department of Agriculture Miscellaneous Publication 1314, 13 p., 290 maps.</p>
<p>
Little, E.L., Jr., 1977, Atlas of United States trees, volume 4, minor Eastern hardwoods: U.S. Department of Agriculture Miscellaneous Publication 1342, 17 p., 230 maps.</p>
<p>
Little, E.L., Jr. 1978, Atlas of United States trees, volume 5, Florida: U.S. Department of Agriculture Miscellaneous Publication 1361, 262 maps.</p>
<p>
</p>
<h3>Download files</h3>
<b>DOCUMENTATION</b><br>
For information on map projections, polygon attributes, and other map parameters, please see the <b>metadata</b>, available in <a href="vegmaps_met.shtml">FGDC format</a>, a more user-friendly <a href="vegmaps_faq.shtml">"Frequently-anticipated Questions"</a> format, or <a href="vegmaps.met">plain text</a>.<p>
<b>AVAILABLE FILE FORMATS</b><br>
A PDF graphic file of the map is available for viewing purposes. Use the free <a href="https://web.archive.org/web/20170127093428/http://www.adobe.com/prodindex/acrobat/readstep.html">Acrobat Reader</a> program to view.<br>
ArcView shapefiles of the distributions are contained in a ZIP file (.ZIP). Use <a href="https://web.archive.org/web/20170127093428/http://www.winzip.com/">WinZip</a>, <a href="https://web.archive.org/web/20170127093428/http://www.pkware.com/">PKZip</a>, or similar program to extract in MS Windows; use <a href="https://web.archive.org/web/20170127093428/http://www.stuffit.com/">Stuffit Expander</a> or similar to unzip on Macintosh; Use <a href="https://web.archive.org/web/20170127093428/http://www.info-zip.org/">UnZip</a> or similar program to extract on UNIX computers.</p>
<p>
<b>BASEMAP SHAPEFILES</b><br>
ArcView Shapefiles of the basemaps used to create the graphic representations of
the maps are not available for download here. <!--We used the <B>na.shp</B> theme that is included in a standard ArcView distribution.--> Projection information is available in the <a href="vegmaps_met.shtml">metadata</a>.</p>
<p>
<font size="-2" face="Arial,Geneva,Helvetica,sans-serif">NOTICE: Use of trade names does not imply endorsement by the USGS or the U.S. Federal Government.</font></p>
<p>
</p>
<table border cellpadding="3">
<tr bgcolor="#CCCCCC">
<th>PDF</th>
<th>ZIP</th>
<th>Latin Name</th>
<th>Common Name</th>
<th>Reference</th>
<th>Original Map No(s).</th>
</tr>
<tr>
<td nowrap><a href="abieamab.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="abieamab.zip">Shapefiles</a></td>
<td nowrap><i>Abies amabilis</i></td>
<td nowrap>Pacific silver fir</td>
<td nowrap>Little (1971)
</td>
<td nowrap>1-W, 1-N</td>
</tr>
<tr>
<td nowrap><a href="abiebals.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="abiebals.zip">Shapefiles</a></td>
<td nowrap><i>Abies balsamea</i></td>
<td nowrap>balsam fir</td>
<td nowrap>Little (1971)
</td>
<td nowrap>2-N, 2-E</td>
</tr>
<tr>
<td nowrap><a href="abiebrac.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="abiebrac.zip">Shapefiles</a></td>
<td nowrap><i>Abies bracteata</i></td>
<td nowrap>bristlecone fir</td>
<td nowrap>Little (1971)
</td>
<td nowrap>3-W</td>
</tr>
<tr>
<td nowrap><a href="abieconc.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="abieconc.zip">Shapefiles</a></td>
<td nowrap><i>Abies concolor</i></td>
<td nowrap>white fir</td>
<td nowrap>Little (1971)
</td>
<td nowrap>5-W</td>
</tr>
<tr>
<td nowrap><a href="abiefras.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="abiefras.zip">Shapefiles</a></td>
<td nowrap><i>Abies fraseri</i></td>
<td nowrap>Fraser fir</td>
<td nowrap>Little (1971)
</td>
<td nowrap>4-E</td>
</tr>
<tr>
<td nowrap><a href="abiegran.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="abiegran.zip">Shapefiles</a></td>
<td nowrap><i>Abies grandis</i></td>
<td nowrap>grand fir</td>
<td nowrap>Little (1971)
</td>
<td nowrap>6-W</td>
</tr>
<tr>
<td nowrap><a href="abielasi.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="abielasi.zip">Shapefiles</a></td>
<td nowrap><i>Abies lasiocarpa</i></td>
<td nowrap>subalpine fir</td>
<td nowrap>Little (1971)
</td>
<td nowrap>7-W, 7-N</td>
</tr>
<tr>
<td nowrap><a href="abiemagn.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="abiemagn.zip">Shapefiles</a></td>
<td nowrap><i>Abies magnifica</i></td>
<td nowrap>California red fir</td>
<td nowrap>Little (1971)
</td>
<td nowrap>8-W</td>
</tr>
<tr>
<td nowrap><a href="abieproc.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="abieproc.zip">Shapefiles</a></td>
<td nowrap><i>Abies procera</i></td>
<td nowrap>noble fir</td>
<td nowrap>Little (1971)
</td>
<td nowrap>9-W</td>
</tr>
<tr>
<td nowrap><a href="acacberl.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acacberl.zip">Shapefiles</a></td>
<td nowrap><i>Acacia berlandieri</i></td>
<td nowrap>Berlandier acacia</td>
<td nowrap>Little (1976)
</td>
<td nowrap>1-N, 1-SW</td>
</tr>
<tr>
<td nowrap><a href="acacchor.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acacchor.zip">Shapefiles</a></td>
<td nowrap><i>Acacia choriophylla</i></td>
<td nowrap>cinnecord</td>
<td nowrap>Little (1978)
</td>
<td nowrap>159</td>
</tr>
<tr>
<td nowrap><a href="acacfarn.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acacfarn.zip">Shapefiles</a></td>
<td nowrap><i>Acacia farnesiana</i></td>
<td nowrap>sweet acacia</td>
<td nowrap>Little (1976)
</td>
<td nowrap>2</td>
</tr>
<tr>
<td nowrap><a href="acacgreg.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acacgreg.zip">Shapefiles</a></td>
<td nowrap><i>Acacia greggii</i></td>
<td nowrap>catclaw acacia</td>
<td nowrap>Little (1976)
</td>
<td nowrap>3</td>
</tr>
<tr>
<td nowrap><a href="acacmacr.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acacmacr.zip">Shapefiles</a></td>
<td nowrap><i>Acacia macracantha</i></td>
<td nowrap>long spine acacia</td>
<td nowrap>Little (1978)
</td>
<td nowrap>160</td>
</tr>
<tr>
<td nowrap><a href="acacrigi.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acacrigi.zip">Shapefiles</a></td>
<td nowrap><i>Acacia rigidula</i></td>
<td nowrap>blackbrush acacia</td>
<td nowrap>Little (1976)
</td>
<td nowrap>4</td>
</tr>
<tr>
<td nowrap><a href="acacroem.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acacroem.zip">Shapefiles</a></td>
<td nowrap><i>Acacia roemeriana</i></td>
<td nowrap>Roemer acacia</td>
<td nowrap>Little (1976)
</td>
<td nowrap>5</td>
</tr>
<tr>
<td nowrap><a href="acactort.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acactort.zip">Shapefiles</a></td>
<td nowrap><i>Acacia tortuosa</i></td>
<td nowrap>twisted acacia</td>
<td nowrap>Little (1976)
</td>
<td nowrap>6-N, 6-SW</td>
</tr>
<tr>
<td nowrap><a href="acacwrig.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acacwrig.zip">Shapefiles</a></td>
<td nowrap><i>Acacia wrightii</i></td>
<td nowrap>Wright acacia</td>
<td nowrap>Little (1976)
</td>
<td nowrap>7</td>
</tr>
<tr>
<td nowrap><a href="acerbarb.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acerbarb.zip">Shapefiles</a></td>
<td nowrap><i>Acer barbatum</i></td>
<td nowrap>Florida maple</td>
<td nowrap>Little (1977)
</td>
<td nowrap>1</td>
</tr>
<tr>
<td nowrap><a href="acercirc.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acercirc.zip">Shapefiles</a></td>
<td nowrap><i>Acer circinatum</i></td>
<td nowrap>vine maple</td>
<td nowrap>Little (1976)
</td>
<td nowrap>8</td>
</tr>
<tr>
<td nowrap><a href="acerglab.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acerglab.zip">Shapefiles</a></td>
<td nowrap><i>Acer glabrum</i></td>
<td nowrap>Rocky Mountain maple</td>
<td nowrap>Little (1976)
</td>
<td nowrap>9-N, 9-W</td>
</tr>
<tr>
<td nowrap><a href="acergran.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acergran.zip">Shapefiles</a></td>
<td nowrap><i>Acer grandidentatum</i></td>
<td nowrap>bigtooth maple</td>
<td nowrap>Little (1976)
</td>
<td nowrap>10</td>
</tr>
<tr>
<td nowrap><a href="acerleuc.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acerleuc.zip">Shapefiles</a></td>
<td nowrap><i>Acer leucoderme</i></td>
<td nowrap>chalk maple</td>
<td nowrap>Little (1977)
</td>
<td nowrap>2</td>
</tr>
<tr>
<td nowrap><a href="acermacr.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acermacr.zip">Shapefiles</a></td>
<td nowrap><i>Acer macrophyllum</i></td>
<td nowrap>bigleaf maple</td>
<td nowrap>Little (1971)
</td>
<td nowrap>95-W, 95-N</td>
</tr>
<tr>
<td nowrap><a href="acernegu.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acernegu.zip">Shapefiles</a></td>
<td nowrap><i>Acer negundo</i></td>
<td nowrap>boxelder</td>
<td nowrap>Little (1971)
</td>
<td nowrap>96-W, 96-E, 96-N</td>
</tr>
<tr>
<td nowrap><a href="acernigr.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acernigr.zip">Shapefiles</a></td>
<td nowrap><i>Acer nigrum</i></td>
<td nowrap>black maple</td>
<td nowrap>Little (1971)
</td>
<td nowrap>97-E</td>
</tr>
<tr>
<td nowrap><a href="acerpens.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acerpens.zip">Shapefiles</a></td>
<td nowrap><i>Acer pensylvanicum</i></td>
<td nowrap>striped maple</td>
<td nowrap>Little (1977)
</td>
<td nowrap>3-N, 3-NE</td>
</tr>
<tr>
<td nowrap><a href="acerrubr.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acerrubr.zip">Shapefiles</a></td>
<td nowrap><i>Acer rubrum</i></td>
<td nowrap>red maple</td>
<td nowrap>Little (1971)
</td>
<td nowrap>98-N, 98-E</td>
</tr>
<tr>
<td nowrap><a href="acersacc.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acersacc.zip">Shapefiles</a></td>
<td nowrap><i>Acer saccharinum</i></td>
<td nowrap>silver maple</td>
<td nowrap>Little (1971)
</td>
<td nowrap>101-E</td>
</tr>
<tr>
<td nowrap><a href="acersacr.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acersacr.zip">Shapefiles</a></td>
<td nowrap><i>Acer saccharum</i></td>
<td nowrap>sugar maple</td>
<td nowrap>Little (1971)
</td>
<td nowrap>99-N, 99-E</td>
</tr>
<tr>
<td nowrap><a href="acerspic.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acerspic.zip">Shapefiles</a></td>
<td nowrap><i>Acer spicatum</i></td>
<td nowrap>mountain maple</td>
<td nowrap>Little (1977)
</td>
<td nowrap>4-N, 4-NE</td>
</tr>
<tr>
<td nowrap><a href="acoewrig.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="acoewrig.zip">Shapefiles</a></td>
<td nowrap><i>Acoelorrhaphe wrightii</i></td>
<td nowrap>paurotis palm</td>
<td nowrap>Little (1978)
</td>
<td nowrap>161</td>
</tr>
<tr>
<td nowrap><a href="aesccali.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="aesccali.zip">Shapefiles</a></td>
<td nowrap><i>Aesculus californica</i></td>
<td nowrap>California buckeye</td>
<td nowrap>Little (1976)
</td>
<td nowrap>11</td>
</tr>
<tr>
<td nowrap><a href="aescglab.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="aescglab.zip">Shapefiles</a></td>
<td nowrap><i>Aesculus glabra</i></td>
<td nowrap>Ohio buckeye</td>
<td nowrap>Little (1971)
</td>
<td nowrap>102-E</td>
</tr>
<tr>
<td nowrap><a href="aescocta.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="aescocta.zip">Shapefiles</a></td>
<td nowrap><i>Aesculus octandra</i></td>
<td nowrap>yellow buckeye</td>
<td nowrap>Little (1971)
</td>
<td nowrap>103-E</td>
</tr>
<tr>
<td nowrap><a href="aescparv.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="aescparv.zip">Shapefiles</a></td>
<td nowrap><i>Aesculus parviflora</i></td>
<td nowrap>bottlebrush buckeye</td>
<td nowrap>Little (1977)
</td>
<td nowrap>5</td>
</tr>
<tr>
<td nowrap><a href="aescpavi.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="aescpavi.zip">Shapefiles</a></td>
<td nowrap><i>Aesculus pavia</i></td>
<td nowrap>red buckeye</td>
<td nowrap>Little (1977)
</td>
<td nowrap>6</td>
</tr>
<tr>
<td nowrap><a href="aescsylv.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="aescsylv.zip">Shapefiles</a></td>
<td nowrap><i>Aesculus sylvatica</i></td>
<td nowrap>painted buckeye</td>
<td nowrap>Little (1977)
</td>
<td nowrap>7</td>
</tr>
<tr>
<td nowrap><a href="agavutah.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="agavutah.zip">Shapefiles</a></td>
<td nowrap><i>Agave utahensis</i></td>
<td nowrap>Utah agave</td>
<td nowrap>Benson and Darrow (1981)
</td>
<td nowrap>3.16</td>
</tr>
<tr>
<td nowrap><a href="alnumari.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="alnumari.zip">Shapefiles</a></td>
<td nowrap><i>Alnus maritima</i></td>
<td nowrap>seaside alder</td>
<td nowrap>Little (1977)
</td>
<td nowrap>8</td>
</tr>
<tr>
<td nowrap><a href="alnuoblo.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="alnuoblo.zip">Shapefiles</a></td>
<td nowrap><i>Alnus oblongifolia</i></td>
<td nowrap>Arizona alder</td>
<td nowrap>Little (1976)
</td>
<td nowrap>12</td>
</tr>
<tr>
<td nowrap><a href="alnurhom.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="alnurhom.zip">Shapefiles</a></td>
<td nowrap><i>Alnus rhombifolia</i></td>
<td nowrap>white alder</td>
<td nowrap>Little (1976)
</td>
<td nowrap>13</td>
</tr>
<tr>
<td nowrap><a href="alnurubr.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="alnurubr.zip">Shapefiles</a></td>
<td nowrap><i>Alnus rubra</i></td>
<td nowrap>red alder</td>
<td nowrap>Little (1971)
</td>
<td nowrap>104-W, 104-N</td>
</tr>
<tr>
<td nowrap><a href="alnurugo.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="alnurugo.zip">Shapefiles</a></td>
<td nowrap><i>Alnus rugosa</i></td>
<td nowrap>speckled alder</td>
<td nowrap>Little (1977)
</td>
<td nowrap>9-N, 9-NE</td>
</tr>
<tr>
<td nowrap><a href="alnuserr.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="alnuserr.zip">Shapefiles</a></td>
<td nowrap><i>Alnus serrulata</i></td>
<td nowrap>hazel alder</td>
<td nowrap>Little (1977)
</td>
<td nowrap>10-NE, 10-SE, 10-N</td>
</tr>
<tr>
<td nowrap><a href="alnusinu.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="alnusinu.zip">Shapefiles</a></td>
<td nowrap><i>Alnus sinuata</i></td>
<td nowrap>Sitka alder</td>
<td nowrap>Little (1976)
</td>
<td nowrap>14-N, 14-W</td>
</tr>
<tr>
<td nowrap><a href="alnutenu.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="alnutenu.zip">Shapefiles</a></td>
<td nowrap><i>Alnus tenuifolia</i></td>
<td nowrap>thinleaf alder</td>
<td nowrap>Little (1976)
</td>
<td nowrap>15-N, 15-W</td>
</tr>
<tr>
<td nowrap><a href="alvaamor.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="alvaamor.zip">Shapefiles</a></td>
<td nowrap><i>Alvaradoa amorphoides</i></td>
<td nowrap>Mexican alvaradoa</td>
<td nowrap>Little (1978)
</td>
<td nowrap>162</td>
</tr>
<tr>
<td nowrap><a href="amelalni.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="amelalni.zip">Shapefiles</a></td>
<td nowrap><i>Amelanchier alnifolia</i></td>
<td nowrap>western serviceberry</td>
<td nowrap>Little (1976)
</td>
<td nowrap>16-N, 16-NW</td>
</tr>
<tr>
<td nowrap><a href="amelarbo.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="amelarbo.zip">Shapefiles</a></td>
<td nowrap><i>Amelanchier arborea</i></td>
<td nowrap>downy serviceberry</td>
<td nowrap>Little (1977)
</td>
<td nowrap>11-N, 11-NE, 11-SE</td>
</tr>
<tr>
<td nowrap><a href="amelinte.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="amelinte.zip">Shapefiles</a></td>
<td nowrap><i>Amelanchier interior</i></td>
<td nowrap>inland serviceberry</td>
<td nowrap>Little (1977)
</td>
<td nowrap>13</td>
</tr>
<tr>
<td nowrap><a href="amelsang.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="amelsang.zip">Shapefiles</a></td>
<td nowrap><i>Amelanchier sanguinea</i></td>
<td nowrap>roundleaf serviceberry</td>
<td nowrap>Little (1977)
</td>
<td nowrap>14</td>
</tr>
<tr>
<td nowrap><a href="amelutah.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="amelutah.zip">Shapefiles</a></td>
<td nowrap><i>Amelanchier utahensis</i></td>
<td nowrap>Utah serviceberry</td>
<td nowrap>Little (1976)
</td>
<td nowrap>17</td>
</tr>
<tr>
<td nowrap><a href="amphlati.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="amphlati.zip">Shapefiles</a></td>
<td nowrap><i>Amphitecna latifolia </i></td>
<td nowrap>black calabash</td>
<td nowrap>Little (1978)
</td>
<td nowrap>163</td>
</tr>
<tr>
<td nowrap><a href="amyrbals.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="amyrbals.zip">Shapefiles</a></td>
<td nowrap><i>Amyris balsamifera</i></td>
<td nowrap>balsam torchwood</td>
<td nowrap>Little (1978)
</td>
<td nowrap>164</td>
</tr>
<tr>
<td nowrap><a href="amyrelem.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="amyrelem.zip">Shapefiles</a></td>
<td nowrap><i>Amyris elemifera</i></td>
<td nowrap>torchwood</td>
<td nowrap>Little (1978)
</td>
<td nowrap>165</td>
</tr>
<tr>
<td nowrap><a href="annoglab.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="annoglab.zip">Shapefiles</a></td>
<td nowrap><i>Annona glabra</i></td>
<td nowrap>pond apple</td>
<td nowrap>Little (1978)
</td>
<td nowrap>166</td>
</tr>
<tr>
<td nowrap><a href="aralspin.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="aralspin.zip">Shapefiles</a></td>
<td nowrap><i>Aralia spinosa</i></td>
<td nowrap>devils walkingstick</td>
<td nowrap>Little (1977)
</td>
<td nowrap>15</td>
</tr>
<tr>
<td nowrap><a href="arbuariz.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="arbuariz.zip">Shapefiles</a></td>
<td nowrap><i>Arbutus arizonica</i></td>
<td nowrap>Arizona madrone</td>
<td nowrap>Little (1976)
</td>
<td nowrap>18</td>
</tr>
<tr>
<td nowrap><a href="arbumenz.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="arbumenz.zip">Shapefiles</a></td>
<td nowrap><i>Arbutus menziesii</i></td>
<td nowrap>Pacific madrone</td>
<td nowrap>Little (1971)
</td>
<td nowrap>100-W</td>
</tr>
<tr>
<td nowrap><a href="arbutexa.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="arbutexa.zip">Shapefiles</a></td>
<td nowrap><i>Arbutus texana</i></td>
<td nowrap>Texas madrone</td>
<td nowrap>Little (1976)
</td>
<td nowrap>19</td>
</tr>
<tr>
<td nowrap><a href="arctprin.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="arctprin.zip">Shapefiles</a></td>
<td nowrap><i>Arctostaphylos pringlei</i></td>
<td nowrap>Pringle manzanita</td>
<td nowrap>Little (1976)
</td>
<td nowrap>20</td>
</tr>
<tr>
<td nowrap><a href="ardiesca.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="ardiesca.zip">Shapefiles</a></td>
<td nowrap><i>Ardisia escallonioides</i></td>
<td nowrap>marlberry</td>
<td nowrap>Little (1978)
</td>
<td nowrap>167</td>
</tr>
<tr>
<td nowrap><a href="artetrid.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="artetrid.zip">Shapefiles</a></td>
<td nowrap><i>Artemisia tridentata</i></td>
<td nowrap>big sagebrush</td>
<td nowrap>Little (1976)
</td>
<td nowrap>21-NW, 21-SW</td>
</tr>
<tr>
<td nowrap><a href="asimparv.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="asimparv.zip">Shapefiles</a></td>
<td nowrap><i>Asimina parviflora</i></td>
<td nowrap>smallflower pawpaw</td>
<td nowrap>Little (1978)
</td>
<td nowrap>158.5</td>
</tr>
<tr>
<td nowrap><a href="asimtril.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="asimtril.zip">Shapefiles</a></td>
<td nowrap><i>Asimina triloba</i></td>
<td nowrap>pawpaw</td>
<td nowrap>Little (1977)
</td>
<td nowrap>16</td>
</tr>
<tr>
<td nowrap><a href="avicgerm.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="avicgerm.zip">Shapefiles</a></td>
<td nowrap><i>Avicennia germinans</i></td>
<td nowrap>black mangrove</td>
<td nowrap>Little (1977, 1978)
</td>
<td nowrap>17-N,17-SE, 168</td>
</tr>
<tr>
<td nowrap><a href="bacchali.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="bacchali.zip">Shapefiles</a></td>
<td nowrap><i>Baccharis halimifolia</i></td>
<td nowrap>eastern baccharis</td>
<td nowrap>Little (1977)
</td>
<td nowrap>18-NE, 18-SE</td>
</tr>
<tr>
<td nowrap><a href="betualle.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="betualle.zip">Shapefiles</a></td>
<td nowrap><i>Betula alleghaniensis</i></td>
<td nowrap>yellow birch</td>
<td nowrap>Little (1971)
</td>
<td nowrap>105-N, 105-E</td>
</tr>
<tr>
<td nowrap><a href="betulent.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="betulent.zip">Shapefiles</a></td>
<td nowrap><i>Betula lenta</i></td>
<td nowrap>sweet birch</td>
<td nowrap>Little (1971)
</td>
<td nowrap>106-E</td>
</tr>
<tr>
<td nowrap><a href="betunana.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="betunana.zip">Shapefiles</a></td>
<td nowrap><i>Betula nana </i></td>
<td nowrap>dwarf birch</td>
<td nowrap>Little (1975)
</td>
<td nowrap>34</td>
</tr>
<tr>
<td nowrap><a href="betunigr.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="betunigr.zip">Shapefiles</a></td>
<td nowrap><i>Betula nigra</i></td>
<td nowrap>river birch</td>
<td nowrap>Little (1971)
</td>
<td nowrap>110-E</td>
</tr>
<tr>
<td nowrap><a href="betuocci.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="betuocci.zip">Shapefiles</a></td>
<td nowrap><i>Betula occidentalis</i></td>
<td nowrap>water birch</td>
<td nowrap>Little (1976)
</td>
<td nowrap>22-N, 22-NW</td>
</tr>
<tr>
<td nowrap><a href="betupapy.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="betupapy.zip">Shapefiles</a></td>
<td nowrap><i>Betula papyrifera</i></td>
<td nowrap>paper birch</td>
<td nowrap>Little (1971)
</td>
<td nowrap>107-N, 107-W, 107-E</td>
</tr>
<tr>
<td nowrap><a href="betupopu.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="betupopu.zip">Shapefiles</a></td>
<td nowrap><i>Betula populifolia</i></td>
<td nowrap>gray birch</td>
<td nowrap>Little (1971)
</td>
<td nowrap>108-N, 108-E</td>
</tr>
<tr>
<td nowrap><a href="betuuber.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="betuuber.zip">Shapefiles</a></td>
<td nowrap><i>Betula uber</i></td>
<td nowrap>Ashe birch</td>
<td nowrap>Little (1977)
</td>
<td nowrap>19</td>
</tr>
<tr>
<td nowrap><a href="bourovat.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="bourovat.zip">Shapefiles</a></td>
<td nowrap><i>Bourreria ovata</i></td>
<td nowrap>Bahama strongbark</td>
<td nowrap>Little (1978)
</td>
<td nowrap>169</td>
</tr>
<tr>
<td nowrap><a href="bourradu.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="bourradu.zip">Shapefiles</a></td>
<td nowrap><i>Bourreria radula</i></td>
<td nowrap>rough strongbark</td>
<td nowrap>Little (1978)
</td>
<td nowrap>170</td>
</tr>
<tr>
<td nowrap><a href="bumecela.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="bumecela.zip">Shapefiles</a></td>
<td nowrap><i>Bumelia celastrina</i></td>
<td nowrap>saffron plum</td>
<td nowrap>Little (1976, 1978)
</td>
<td nowrap>23-N, 23-SW, 171</td>
</tr>
<tr>
<td nowrap><a href="bumelanu.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="bumelanu.zip">Shapefiles</a></td>
<td nowrap><i>Bumelia lanuginosa</i></td>
<td nowrap>gum bumelia</td>
<td nowrap>Little (1976, 1977)
</td>
<td nowrap>24, 20</td>
</tr>
<tr>
<td nowrap><a href="bumelyci.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="bumelyci.zip">Shapefiles</a></td>
<td nowrap><i>Bumelia lycioides</i></td>
<td nowrap>buckthorn bumelia</td>
<td nowrap>Little (1977)
</td>
<td nowrap>21</td>
</tr>
<tr>
<td nowrap><a href="bumetena.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="bumetena.zip">Shapefiles</a></td>
<td nowrap><i>Bumelia tenax</i></td>
<td nowrap>tough bumelia</td>
<td nowrap>Little (1977)
</td>
<td nowrap>22</td>
</tr>
<tr>
<td nowrap><a href="bursfaga.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="bursfaga.zip">Shapefiles</a></td>
<td nowrap><i>Bursera fagaroides</i></td>
<td nowrap>fragrant bursera</td>
<td nowrap>Little (1976)
</td>
<td nowrap>26-N, 26-SW</td>
</tr>
<tr>
<td nowrap><a href="bursmicr.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="bursmicr.zip">Shapefiles</a></td>
<td nowrap><i>Bursera microphylla</i></td>
<td nowrap>elephanttree</td>
<td nowrap>Little (1976)
</td>
<td nowrap>25</td>
</tr>
<tr>
<td nowrap><a href="burssima.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="burssima.zip">Shapefiles</a></td>
<td nowrap><i>Bursera simaruba</i></td>
<td nowrap>gumbo limbo</td>
<td nowrap>Little (1978)
</td>
<td nowrap>172</td>
</tr>
<tr>
<td nowrap><a href="byrsluci.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="byrsluci.zip">Shapefiles</a></td>
<td nowrap><i>Byrsonima lucida</i></td>
<td nowrap>key byrsonima</td>
<td nowrap>Little (1978)
</td>
<td nowrap>173</td>
</tr>
<tr>
<td nowrap><a href="caesmexi.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="caesmexi.zip">Shapefiles</a></td>
<td nowrap><i>Caesalpinia mexicana</i></td>
<td nowrap>Mexican poinciana</td>
<td nowrap>Little (1976)
</td>
<td nowrap>27-N, 27-SW</td>
</tr>
<tr>
<td nowrap><a href="calypall.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="calypall.zip">Shapefiles</a></td>
<td nowrap><i>Calyptranthes pallens</i></td>
<td nowrap>pale lidflower</td>
<td nowrap>Little (1978)
</td>
<td nowrap>174</td>
</tr>
<tr>
<td nowrap><a href="calyzuzy.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="calyzuzy.zip">Shapefiles</a></td>
<td nowrap><i>Calyptranthes zuzygium</i></td>
<td nowrap>myrtle of the river</td>
<td nowrap>Little (1978)
</td>
<td nowrap>175</td>
</tr>
<tr>
<td nowrap><a href="canewint.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="canewint.zip">Shapefiles</a></td>
<td nowrap><i>Canella winterana</i></td>
<td nowrap>canella</td>
<td nowrap>Little (1978)
</td>
<td nowrap>176</td>
</tr>
<tr>
<td nowrap><a href="canoholo.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="canoholo.zip">Shapefiles</a></td>
<td nowrap><i>Canotia holacantha</i></td>
<td nowrap>canotia</td>
<td nowrap>Little (1976)
</td>
<td nowrap>28</td>
</tr>
<tr>
<td nowrap><a href="cappcyno.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="cappcyno.zip">Shapefiles</a></td>
<td nowrap><i>Capparis cynophallophora</i></td>
<td nowrap>Jamaica caper</td>
<td nowrap>Little (1978)
</td>
<td nowrap>177</td>
</tr>
<tr>
<td nowrap><a href="cappflex.pdf">Graphic(PDF)</a></td>
<td nowrap><a href="cappflex.zip">Shapefiles</a></td>
<td nowrap><i>Capparis flexuosa</i></td>
<td nowrap>limber caper</td>
<td nowrap>Little (1978)
</td>
<td nowrap>178</td>