Milkweed Family, 87. 
Milkwort Family, 44. 
Millet, 129. 
Mimulus, 78. 
Mint Family, 80. 
Missouri Currant, 51. 
Mitchella, 60. 
Mnium, 140, 169. 
Mockernut, 96. 
Mock Orange, 51. 
Mollugo, 39. 
Monarda, 82. 
Monardadidyma, 82. 
Moneses, 74. 
Moneywort, 76. 
Monkey Flower, 78. 
Monostroma Pulchrum, 168. 
Monostroma (Ulva), 166. 
Monotropa, 74. 
Morning Glory, 84. 
Morus, 95. 
Mosses, 137. 
Mossy Stone-crop, 52. 
191 
Myriophyllum, 53. 
Nabalus, 69. 
Naiadacee, 104. 
Naias, 104. 
Narrow-leaved Chain Fern, 133. . 
Nasturtium, 33. 
Neckera, 142, 172. 
Neckeree, 142. 
Negundo, 44. 
Nemalion, 160. 
Nemopanthes, 75. 
Nepeta, 82. 
Nephroma, 151. 
Nesea, 55. 
Nettle, 95. 
Nettle Family, 94. 
Nettle Tree, 94. 
New Jersey Tea, 43. 
New York Fern, 134. 
Nicandra, 86. 
Nichols, Andrew, 22. 
Nicotiana, 86. 
Nicotiana rustica, 15, 86. 
Nigger-hair, 158. 
Night-flowering Catchfly, 38. 
Nightshade Family, 85. 
Nipplewort, 68. 
Motherwort, 83. 
Moth Mullein, 78. 
Mountain Ash, 50. 
Mountain Holly, 75. 
Mountain Laurel, 73. 
Mountain-mint, 81. Nitella, 146. 
Mouse-ear Chickweed, 38. Nitellez, 146. 
Mugwort, 67. Nodding Trillium, 111. 
Muhlenbergia, 124. Nonesuch, 45. 
Mulgidium, 69. Northern Fox Grape, 42. 
Mullein, 78. 
Muscari, 112. 
Musci, 137, 170. 
Muscinee, 137. 
Musk Mallow, 40. 
Mustard Family, 35. 
Mycoporum, 155. 
Myosotis, 84. 
Myrica, 98. 
Myricacee, 98. 
Myrionema, 164. 
Norway Vine, 101. 
Nuphar, 32. 
Nymphea, 32. 
Nympheacee, 31. 
Nyssa, 58. 
Oakes, William, 22. 
Oakesia, 111. 
Oak Family, 96-98. 
Oak-leaved Goosefoot, 89. 
Oat, 128. 
