139 



Sheep Laurel, 102. 

 Shellbark ( Eicoria ovata), 40. 



Shellbark (Hickory), 41. 



Shellbark (Hicoria laciniosa), 41. 



Shellbark Hickory (Hicoria ovata), 40. 



Shellbark -tret ',41. 



She Pine, 19. 



She Pitch Pine, 19. 



Shin Oak, 52. 



Shin Oak (Quercus yambelii),b2. 



Shin Oak {Quercus breviloba),5i. 



Shin Oak (Quercus undulata), 54. 



Shin Oak (Qx<crcus brevifolia), 58. 



Shingle Oak, 58. 



Shinglewood, 31. 



Shittimwood ( Rhamnus pu rshiana), 96. 



Shittimwood, 104. 



Shoe-peg Maple, 92. 



Shore Pine, 16. 



Short-flower Mahogany, 69. 



Shortleaf Pine, 18. 



Shortleaf Pine (Finns tceda), 17. 



Shortleaved Pine (Pinus viryiniana), 18. 



Shortleaved Pine (Pinus echinata), 18. 



Shortleaved Yellow Pine, 18. 



Short-pod Honey Locust, 80. 



Shortshat Pine (Pinus Virginia ua), 18. 



Shortshat Pine (Pinus echinata), 18. 



Short Shucks, 18. 



Shrub Oak, 53. 



Shrub Willow, 43. 



Shrubby Maple, 91. 



Sierra Brownbark Pine, 15. 



Sierra Kedbark Pine, 16. 



Silktop Palmetto, 37. 



Silky Willow, 45. 



Silverbell, 105. 



Silverbell-tree, 105. 



Silverbell-tree (Molirodendron dipterum), 105. 



'Silver Birch (Betulapapyrifera), 48. 



Silver Birch (Betula lutea), 48. 



Silver Fir (Abies grandis), 26. 



Silver Fir (Abies concolor), 26. 



Silverleaf Poplar, 97. 



Silverleaf Willow, 44. 



Silver-leaved Maple, 92. 



Silver Maple, 92. 



Silver Oak, 86. 



Silver Pine, 13. 



Silver Pine (Abies balsamea), 25. 



Silver Poplar, 47. 



Silver Spruce, 21. 



Silver Thatch, 37. 



Silver Willow (Salix sessilifolia), 44. 



Silver Willow (Salix discolor), 44. 



Silvertop Palmetto, 37. 



Simmon, 104. 



Simpleleaf Locust, 82. 



Sina, 97. 



Singleleaf, 15. 



Single-leaf Pinon, 15. 



Single Spruce (Picea canadensis), 21. 



Single Spruce (Abies balsamea), 25. 



Sinita, 97. 



Sir Joseph Bank's Pine, 19. 



Siskiyou Spruce, 22. 



Sitka Cypress, 32. 



Sitka Spruce, 22. 



Sitka Willow, 45. 



Skunk Spruce, 21. 



Slash Pine (Pinus tceda), 17. 



Slash Pine (Pinus echinata), 18. 



Slash Pine (Pinus hcterophylla), 19. 



Slippery Elm, 60. 



Slippery Elm (Fremontodendron calif ornicum),\ 



Sloe (Prunus americana), 75. 



Sloe (Prunus umbellata) , 76. 



Sloe ( Yirburnum prunifoliunt), 111. 



Small-coned Monterey Pine, 17. 



Small-fruit Mountain Ash, 70. 



Small-fruit White Ash, 106. 



Small Laurel, 102. 



Small-leaf Haw, 74. 



Small-leaf Horse-bean, 81. 



Small-leaf Locust, 82. 



Small-leaved Elm, 61. 



Small Pignut (Hickory), 41. 



Small White Birch, 47. 



Smoke-tree, 87. 



Smoking Beau, 109. 



Smooth-fruited, White-leaved Limetree, 97. 



Smoothleaf Willow, 43. 



Smooth-leaved Limetree, 96 



Smooth Sumach, 88. 



Snapping Hazel, 68. 



Snowdrop-tree (Molirodendron carolinum), '105 



Snowdrop-tree, 105. 



Snowfiower-tree, 108. 



Snowy Poplar, 47. 



Soapberry, 94. 



Soapberry (Sajrindus marginatiis), 94. 



Soft Maple (Acer glab rum), 91. 



Soft-Maple (Acer saccharinum) , 92. 



Soft Maple (Acer rubrum), 92. 



Soft Pine (Pinus strobus), 13. 



Soft Pine (Pinus monticola), 14. 



Soldierwood, 96. 



Soledad Pine, 15. 



Sonora Ironwood, 83. 



Sophora, 81. 



Sorrel- tree, 102. 



Soulard Apple, 70. 



Sour Cherry, 76. 



Sour Gum (Nyssa sylvatica), 100. 



Sour Gum (Nyssa aquatica), 101. 



Sour Gum (Oxydendrum arboreum), 102. 



Sour Gum Bush, 102. 



Sour Tupelo, 101. 



Sourwood, 102. 



Southern Buckthorn, 104. 



Southern Bullace Plum, 76. 



Southern Crab Apple, 70. 



Southern Cypress, 27. 



Southern Hard Pine, 19. 



Southern Heart Pine, 19. 



Southern Hemlock, 23. 



Southern Mountain Tine, 18. 



Southern Pine, 19. 



Southern Pitch Pine, 19. 



Southern Prickly Ash, 84. 



Southern Red Juniper, 35. 



Southern Yellow Pine (Pinus ponder osa), 15. 



