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ILLUSTRATIONS 1. Brunnichia ovata (Ladies' Em·drops). 7 2. Polygonella articulata (Jointweed). 9 3. Rheum rhaponticum (Rhubarb). 11 4. Rheum rhaponticum (Rhubarb). 12 5. Rumex acetosella (Sour Dock; Sheep Sorrel). 16 6. Rumex hastatulus (Sour Dock). 18 7. Rumex longifolius (Dock). 20 8. Rumex maritimus val'. Jueginus (Golden Dock). 21 g. Rumex obtusifolius (Bitter Dock). 23 10 . Rumex obtusifolius (Bitter Dock). 24 11. Rumex patientia (Patience Dock). 26 12. Rumex crispus (Curly Dock). 28 13. Rumex crispus (Curly Dock). 29 14· Rumex altissimus (Pale Dock). 30 15. Rumex orbiculatus (Water Dock). 32 16. Rumex verlicillatus (Swamp Dock). 34 17· Rumex mexicanus (Dock). 36 18. RU111£X cristatus (Crested Dock). 38 19· Fagopyrum esculentum (Buckwheat). 40 20. Polygonum sagittatum (Tear Thumb). 45 21 . Polygonum arifolium (Tear Thumb). 47 22. Polygonum convolvulus (Black Bindweed). 49 23· Polygonum cristatwn (Crested False Buckwheat). 51 24· Polygonum scandens (False Buckwheat). 53 25· Polygonwn tenue (Slender Knotweed). 55 26. Polygonum aviculare (Knotweed). 56 27· Polygonum buxiforme (Knotweed). 58 28. Polygonwn prolificum (Knotweed). 59 2g. Polygonum exserlum (Long-fruited Knotweed). 61 30. Polygonum ramosissimu1n (Knotweed). 63 31. Polygonum erectum (Knotweed). 65 32. Polygonmn achoreum (Knotweed). 66 33· Polygonwn arenastrum (Knotweed). 68 34· Polygonwn neglectum (Knotweed). 70 35· Polygonum sachalinense (Giant Knotweed). 71 x / ILLUSTRATIONS 36. Polygonum cuspidatum (Japanese Knotweed). 73 37· Polygonum virginianum (Virginia Knotweed). 75 38. Polygonum careyi (Carey's Smartweed). 76 39· Polygonum orientale (Prince's Feather). 78 40. Polygonum punctatum (Smartweed). 80 41. Polygonum hydropiper (Water Pepper; Smartweed). 82 42. Polygonum persicaria (Lady's Thumb). 84 43· Polygonum cespitosum val'. longisetum (Creeping Smartweed). 85 44· Polygonum setaceum var. interjectum (Smartweed). 87 45· Polygonum hydropiperoides (Mild Water Pepper; Smartweed). 89 46. Polygonum opelousanum (Water Pepper). 91 47· Polygonum amphibium (Water Smartweed; Scarlet Smartweed). 94 48. Polygonum amphibium (Water Smartweed; Scarlet Smartweed). 95 49· Polygonum amphibium (Water Smartweed; Scarlet Smartweed). 96 50. Polygonum bicorne (Smartweed). 98 51. Polygonum scabrum (Smartweed). 100 52. Polygonum lapathifolium (Pale Smartweed). 101 53· Polygonum pensylvanicum (Common Smartweed; Smartweed). 104 54. Hamamelis virginiana (Witch Hazel). 107 55. Liquidambar styraciflua (Sweet Gum; Red Gum.) 110 56. Liquidambar styraciflua (Sweet Gum; Red Gum.) III 57. Platanus occidentalis (Sycamore; Plane Tree). 112 58. Fagus grandifolia var. caroliniana (Beech). 116 59. Castanea dentata (American Chestnut). 119 60. Castanea mollissima (Chinese Chestnut). 121 61. Diagrams ofacorns. 123 62. Diagrams ofacorns (continued). 124 63. Leaftrichome types. 125 64. Quercus phellos (Willow Oak). 130 65. Quercus imbricaria (Shingle Oak). 132 66. Quercus imbricaria (Shingle Oak). 133 67· Quercus shumardii (Shumard's Oak). 135 68. Quercus shumardii (Shumard's Oak). 136 69· Quercus rubra (Northern Red Oak). 138 70 . Quercus rubra (Northern Red Oak). 139 [18.191.202.72] Project MUSE (2024-04-25 18:43 GMT) Illustrations I xi 71. Quercus velutina (Black Oak). 141 72. Quercus velutina (Black Oak). 142 73. Quercus ellipsoidalis (Hill's Oak). 144 74. Quercus coccinea (Scarlet Oak). 146 75. Quercus palustris (Pin Oak). 149 76. Quercus palustris (Pin Oak). 150 77. Quercus nuttallii (Nuttall's Oak). 151 78. Quercus marilandica (Blackjack Oak). 153 79. Quercus falcata (Spanish Oak). 155 80. Quercus pagoda (Cherrybark Oak). 157 81. Quercus alba (White Oak). 159 82. Quercus alba (White Oak). 160 83. Quercus prinoides val'. acuminata (Chinquapin Oak; Yellow Chestnut Oak). 163 84. Quercus prinoides val'. acuminata (Chinquapin Oak; Yellow Chestnut Oak). 164 85. Quercus montana (Rock Chestnut Oak). 167 86. Quercus michauxii (Swamp Chestnut Oak; Basket Oak; Cow Oak). 169 87. Quercus bicolor (Swamp White Oak). 171 88. Quercus macrocarpa (Bur Oak; Mossy-cup Oak). 173 89. Quercus macrocarpa (Bur Oak; Mossy-cup Oak). 174 90. Quercus stellata (Post Oak). 176 91. Quercus stellata (Post Oak). 177 92 . Quercus lyrata (Overcup Oak). 179 93. Betula alleghaniensis (Yellow Birch). 182 94. Betula nigra (River Birch; Red Birch). 184 95. Betula papyrifera (Paper Birch; Canoe Birch). 186 96. Betula populifolia (Gray Birch). 188 97. Betula X sandbergii (Sandberg's Birch). 190 98. Betula X purpusii (Purpus' Birch). 192 99. Betula pumila (Dwarf Birch). 195 100. Alnus glutinosa (Black Alder; European Alder). 197 101. Alnus rugosa (Speckled Alder). 199 102. Alnus serrulata (Hazel Alder; Common Alder; Smooth Alder). 200 103. Ostrya virginiana (Hop Hornbeam; Ironwood). 203 104. Corylus americana (Hazelnut; American Filbert). 205 105. Corylus rostrata (Beaked Hazelnut). 207 106. Carpinus caroliniana (Blue Beech; American Hornbeam; Ironwood; Muscle Wood. 209 xii / A1. Rumex conglomeratus &OXVWHUHG*UHHQ'RFN  219 A2. Rumex dentatus 7RRWKHG'RFN  221 A3. Rumex stenophyllus 1DUURZOHDYHG&XUO\'RFN  223 A4. Fallopia cilinodis %ULVWO\&OLPELQJ%XFNZKHDW  227 A5. Fallopia dumetorum &OLPELQJ%XFNZKHDW  229 A6. Polygonum patulum 7XEHUFOHG.QRWZHHG...

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