ILLUSTRATED FLORA OF EAST TEXAS - Brit - Botanical Research ...

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CURRENT VEGETATION <strong>OF</strong> PINEYWOODS/INTRODUCTION 93 the sand may be finer grained or contain more silt and clay than that of Dry Uplands on Deep Coarse Sands; hence Arenic Dry Uplands are not as droughty. Relatively common on many Pineywoods landscapes, they correspond in part to Nixon’s (2000) broad “dry upland” category. We recognize two distinctive natural plant communities on this ecological type, depending on whether a site has burned regularly and whether it is within the geographic range of longleaf pine. FIG.52/ARENIC MIXED PINE-HARDWOOD UPLANDS FROM ANGELINA NATIONAL FOREST,ANGELINA CO.(PHOTO BY JVK). ARENIC MIXED PINE-HARDWOOD UPLANDS—These are somewhat open- to closed-canopy forests consisting of a variety of tree species, including Pinus echinata (shortleaf pine), Quercus incana (bluejack oak), Q. stellata (post oak), Q. marilandica (blackjack oak), Q. falcata (southern red oak), Carya texana (black hickory), Sassafras albidum (sassafras), and Nyssa sylvatica (black-gum). Pinus taeda (loblolly pine) may also be present, but it is often not as abundant as on less droughty sites. Rhus copallina (flame-leaf sumac), Rhus aromatica (fragrant sumac), and Vaccinium arboreum (farkleberry) are common shrubs. Bracken fern (Pteridium aquilinum) may be abundant. A variety of wide-ranging, common taxa such as Rubus spp. (blackberry), Smilax spp. (greenbrier), and Lespedeza virginica (slender lespedeza) may also occur. Species more common on drier sites, Yucca louisianensis (yucca), Cnidoscolus texanus (Texas bull-nettle), Tragia urticifolia (nettle-leaf nose-burn), and Opuntia stricta (erect prickly-pear), are often present—especially in more open patches (Figs. 52, 53). Formerly, these communities were limited to areas outside the range of longleaf pine and to locations where wildfires were infrequent as a result of topographic features. They have increased on modern landscapes at the expense of longleaf pine-dominated communities. ARENIC LONGLEAF PINE UPLANDS—Pinus palustris (longleaf pine) dominates these areas, forming nearly pure stands. The rather open canopy allows enough light to reach the ground to support a species-rich, prairie-like ground layer of grasses, composites, and other sun-loving species (Fig. 42 on page 78). Schizachyrium scoparium (little bluestem) may be dominant. Because of the importance of the dominant species, this community has sometimes been referred to as “Longleaf Pine-Bluestem Range” (Watson 1975). It also corresponds in part with the “longleaf bluestem uplands” of Ajilvsgi (1979). Other important species include
94 INTRODUCTION/CURRENT VEGETATION <strong>OF</strong> PINEYWOODS FIG.53/ARENIC LONGLEAF PINE UPLANDS ON THE NATURE CONSERVANCY’S ROY E. LARSEN SANDYLAND SANCTUARY,HARDIN CO.NOTE THE LOOSE SANDY SOIL.(PHOTO BY GMD). FIG.54/DRY-MESIC MIXED PINE-HARDWOOD UPLANDS FROM SABINE NATIONAL FOREST,SAN AUGUSTINE CO.(PHOTO BY JVK).
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ILLUSTRATED FLORA OF EAST TEXAS
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ALLDREDGE, LINDA & JACK BATTERBAE,
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We would like to recognize and expr
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ISSN 0833-1475 ISBN 1-889878-12-X S
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“DEEP EAST TEXAS IS AN OLD, QUIET
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Elray S. Nixon E lray Nixon was bor
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ILLUSTRATED FLORA OF EAST TEXAS TAB
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TABLE OFCONTENTS/ PAGE APPENDICES A
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Hymenocallis liriosme
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ILLUSTRATED FLORA OF EAST TEXAS OVE
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4 INTRODUCTION/GEOGRAPHIC AREA OF E
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10 INTRODUCTION/MAJOR RIVERS OF EAS
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12 INTRODUCTION/PLANTS TREATED The
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14 INTRODUCTION/GUIDE TO ARRANGEMEN
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16 INTRODUCTION/GUIDE TO SOURCES OF
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18 INTRODUCTION/GUIDE TO GEOGRAPHIC
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20 INTRODUCTION/GUIDE TO ENDANGERED
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22 INTRODUCTION/GUIDE TO GLOSSARY,
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24 INTRODUCTION/GUIDE TO ABBREVIATI
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26 INTRODUCTION/SUMMARY DATA ON FLO
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28 INTRODUCTION/ACKNOWLEDGMENTS Kar
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30 INTRODUCTION/AUTHORS’ NOTE Pre
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32 INTRODUCTION/GENERAL GEOLOGY OF
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Page 59 and 60: 42 INTRODUCTION/GENERAL GEOLOGY OF
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Page 63 and 64: 46 INTRODUCTION/SOILS SOIL ORDER DE
Page 65 and 66: 48 INTRODUCTION/SOILS, EAST TEXAS B
Page 67 and 68: 50 INTRODUCTION/SOIL-RELATED GEOLOG
Page 77 and 78: 60 INTRODUCTION/SOILS OF BLACKLAND
Page 83 and 84: 66 INTRODUCTION/CLIMATE OF EAST TEX
Page 93 and 94: Forests define East Texas, and to a
Page 95 and 96: 78 INTRODUCTION/GEOLOGY OF PINEYWOO
Page 97 and 98: 80 INTRODUCTION/PRESETTLEMENT, EARL
Page 105 and 106: 88 INTRODUCTION/PRESETTLEMENT VEGET
Page 107 and 108: 90 INTRODUCTION/CURRENT VEGETATION
Page 109: 92 INTRODUCTION/CURRENT VEGETATION
Page 123 and 124: 106 INTRODUCTION/POST OAK SAVANNAH
Page 127 and 128: 110 INTRODUCTION/GEOLOGY AND SOILS
Page 129 and 130: 112 INTRODUCTION/SOILS, FIRE, AND T
Page 131 and 132: 114 INTRODUCTION/SOILS, FIRE, AND T
Page 133 and 134: 116 INTRODUCTION/ PRESETTLEMENT, EA
Page 135 and 136: 118 INTRODUCTION/VEGETATION OF POST
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Page 145 and 146: 128 INTRODUCTION/RED RIVER AREA are
Page 147 and 148: 130 INTRODUCTION/BLACKLAND PRAIRIE
Page 149 and 150: 132 INTRODUCTION/GEOLOGY OF BLACKLA
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144 INTRODUCTION/VEGETATION OF BLAC
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146 INTRODUCTION/FUTURE OF BLACKLAN
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148 INTRODUCTION/FUTURE OF BLACKLAN
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150 INTRODUCTION/CADDO LAKE LOCATIO
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152 INTRODUCTION/CADDO LAKE FIG.84/
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154 INTRODUCTION/PRESENT AND FUTURE
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156 INTRODUCTION/BIG THICKET THE BI
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158 INTRODUCTION/BIG THICKET GEOGRA
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160 INTRODUCTION/NATURAL HISTORY OF
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172 INTRODUCTION/SUMMARY DEFINITION
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174 INTRODUCTION/PRESETTLEMENT AND
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184 INTRODUCTION/HISTORY OF BIG THI
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190 INTRODUCTION/CONSERVATION IN BI
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200 INTRODUCTION/ORIGIN AND DIVERSI
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228 INTRODUCTION/CONSERVATION IN EA
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234 INTRODUCTION/HISTORY OF BOTANY
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244 INTRODUCTION/BOTANY IN NORTH CE
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246 INTRODUCTION/BOTANY IN NORTH CE
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248 INTRODUCTION/BOTANY AT UNIVERSI
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250 INTRODUCTION/BOTANY AT TEXAS A&
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252 INTRODUCTION/BOTANY AT TEXAS A&
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254 INTRODUCTION/OTHER CONTRIBUTION
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256 INTRODUCTION/CURRENT BOTANICAL
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258 INTRODUCTION/BOTANICAL ART IN E
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ILLUSTRATED FLORA OF EAST TEXAS - Brit - Botanical Research ...

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