189 
Labrador Tea, 73. * Leucobryum (Dicranum), 176. 
Lactuca, 69. ; 2 Leucodon, 172. 
Lady Fern, 134. © Leucothe, 72. 
Lady’s Slipper, 109. Levisticum, 56. 
Lady’s Thumb, 91. Liatris, 60. 
Ladies’ Tresses, 108. — Lichens, 149. 
Lambkill, 73. ° . Lichina, 152. . 
Laminaria, 163. | Ligusticum, 56. 
Lamium, 83. Ligustrum, 88. 
Lampsana, 68. Lilac, 88. 
Lance-leaved Violet, 35. | Liliacez, 110. 
Laportea, 95. Lilium, 112. 
Lappa, 68. Lily Family, 110. 
Larch, 101. Lily-of-the-Valley, 111. 
Large Cranberry, 71. Limanthemum, 87. 
Larger Bur Marigold, 66. Linacee, 41. 
Larger Yellow Lady’s Slipper,109. | Linaria, 78. 
Pernx, 101. . Linden, 40. 
Lathyrus, 46. Linden Family, 40. 
Lauracee, 93. Lindera, 93. 
Laurel, 73. Linnea, 58: 
Laurel Family, 93. Linum, 41, 169. 
Laver, 162. Liparis, 109. 
Leadwort Family, 75. © Liricdendron, 31. 
Leathesia, 164. Listera, 108. 
Lecanora, 152. Lithothamnion, 159. 
Lechea, 36. . Live-for-ever, 52. 
Lecidea, 154. . Liverwort Family, 144. 
Ledum, 73. | Lobelia, 70. 
Leersia, 122. Lobeliacee, 70. 
Leguminose, 44. Lobelia Family. 70. 
Lemna, 103. 
Lemnacee, 103. 
Lentibulacee, 76. 
Leontodon, 69. 
Leonurus, 83. 
Lepidium, 34. 
Lepigonum, 39. 
Leptogium, 152. 
Leskea, 141, 172. 
Lespedeza, 46. 
Leucanthemum, 66. . 
Leucobryee, 138. 
Leucobryum, 138. 
Lobster-claws, 158. 
| Locust, 45. 
} Lolium, 127. 
Lombardy Poplar, 100. 
Lomentaria, 160. 
Long-pointed Anemone, 29. 
Long-fruited Strawberry, 49. 
Long-leaved Stitchwort, 38. 
Lonicera, 58. 
Loosestrife Family, 54. 
Lophocolea, 145. 
Lopseed, 80. 
Lousewort, 80. . 

