119 



Poplar, necklace, 92. 

 Poplar, white, 91. 

 Populus alba, 91. 

 Populus balsamifera candi- 



cans, 91. 

 Populus dilatata, 92. 

 Populus grandidentata, 91. 

 Populus monilifera, 92. 

 Populus tremuloides, 91. 

 Privet, 41. 

 Prunus avium, 34. 

 Prunus cerasus, 34. 

 Prunus pennsylvanica, 34. 

 Prunus serotina, 83. 

 Prunus virginiana, 33. 

 Pyrus americana, 32. 

 Pjrrus aucuparia, 32. 

 Pyrus coronaria, 32. 

 Pyrus malus, 31. 

 Pyrus vulgaris, 32. 



Quercus 

 Quercus 

 Quercus 

 Quercus 

 Quercus 

 Quercus 

 Quercus 

 ta, 78. 

 Quercus 

 Quercus 



alba, 77. 

 bicolor, 79. 

 coccinea, 80. 

 ilicifoUa, 80. 

 palustris, 80. 

 prinoides, 79. 

 robur peduncular 



I robur sessUiflora, 79. 

 ! rubra, 79. 

 Quercus tinctoria, 80. 



Eed-bud, 30. 



Eetiaospora, Japanese, 21. 

 Rhododendron, 40. 

 Rhododendrons, retention 



of leaves by, 101. 

 Ehamnus catharticus, 20. 

 Ehus copallina, 19. 

 Rhus cotinus, 20. 

 Rhus glabra, 19. 



Rhus toxicodendron, 19. 

 Rhus typhina, 18. 

 Rhus venenata, 19. 

 Robinia hispida, 29. 

 Robinia pseudacacia, 28. 

 Robinia viscosa, 29. 



Salix alba, 86. 



Salix babylonica, 89. 



Salix caprea, 90. 



Salix discolor, 89. 



Salix fragilis, 88. 



Salix herbacea, 90. 



Salix lucida, 90. 



Salix myrtilloides, 90. 



Salix nigra, 89. 



Salix purpurea, 90. 



Salix rostrata, 90. 



Salix sericea, 90. 



Salix viminalis, 90. 



Salix alba vitelUna, 88. 



Sassafras, 43. 



Sassafras oflcuiale, 43. 



Savin, 106. 



Sequoia gigantea, age of, 48 



Service-berry, (see Ame- 



lanchier) . 

 Shad-bush, 33. 

 Sheep-berry, 14, 40. 

 Smoke-tree, 20. 

 Spice-bush, 44. 

 Spruce, black, 98. 

 Spruce, double (see Spruce 



black) . 

 Spruce, hemlock, 100. 

 Spruce, Norway, 99. 

 Spruce, single, (see Spruce 



white) . 

 Spruce, white, 99. 

 Spruces and firs, differences 



between, 100. 

 Sumach, Chinese, 18. 



