286 



INDEX 



Page 



Smoothbark Cottonwood 03 



Smooth-bark Oak... 87,88 



Smooth-fruited White-leaved Limetree 205 



Smooth-leaf Willow 69 



Snapping Hazel - 127 



Snowbell. 224 



Snowdrop Tree (Halesia Carolina) 223 



Snowdrop Tree (Halesia diptera).. 224 



Snowflower-tree 229 



Snowy Poplar _•_ 67 



Soapberry (Sapindus drumroondii). 197 



Soapberry (Sapindus marginatus) 197 



Soapberry (Sapindus saponaria)... 196 



Soapberry, Florida 197 



Soapberry, Southern 196 



Soapberry, Western. 197 



Soapberry, West Indian 196 



Soapberry, Wingleaf... 196 



Soapweed 49 



Soft Cork White Pine 13,239 



Soft Elm 111,242 



Soft Idaho White Pine 13,239 



Soft Maple (Acer glabrum) 187 



Soft Maple (Acer rubrum).... 190,242 



Soft Maple (Acer saccharinum) 190,242 



Soft Minnesota White Pine.... 13,239 



Soft Pine (Pinus monticola) 13 



Soft Pine (Pinus strobus) 13 



Soft White Pine 13,239 



Soft Yellow Poplar 123,242 



Solanaceae 231 



Solanum 231 



Solanum verbascifolium 231 



Soldierwood 200 



Soledad Pine 16 



Sonora Ironwood 172 



Sophora 169 



Sophora affinis 169 



Sophora secundiflora 169 



Sorbus 133 



Sorbus americana 133 



Sorbus americana var. decora 133 



Sorbus americana sitchcnsis 133 



Sorbus aucuparia 133 



Sorbus occidentals 133 



Sorbus scopulina. 133 



Sorrell-tree 217 



Sotol 49 



Soulard Crab.... 132 



Soulard Crab Apple... 132 



Sour Berry.. 181 



Sour Cherry 159 



Sour Gum (Nyssa aquatica) 214 



Sour Gum (Nyssa biflora). 213 



Sour Gum (Nyssa sylvatica) 213 



Sour Gum (Oxydendrum arboreum) _ 217 



Sour Gum Bush 217 



Sour Oak... 181 



Sour Tupelo... 213 



Sour Tupelo Gum 213 



Sourwood 217 



South American Milktree 179 



Southern Balsam Fir 29 



Southern Basswood. 202 



Southern Blackhaw , 236 



Southern Buckeye 196 



Southern Buckthorn 221 



Southern Bull ace Plum 158 



Southern Cottonwood 65 



Southern Crab Apple 129 



Southern Cypress 34,241 



Southern Elm 112 



Southern Gum.. 213 



Southern Hard Pine 22 



Southern Heart Pine 22 



Southern Hemlock 27 



Southern Ironwood 182 



Southern Magnolia.. 120 



Southern Mountain Pine 21 



Southern Oak... 107 



Southern Pine (Pinus caribaea) 240 



Southern Pine (Pinus glabra) 240 



Southern Pine (Pinus echinata) 240 



Southern Pine (Pinus palustris) 22,240 



Southern Pine (Pinus rigida) 240 



Southern Pine (Pinus rigida serotina) 240 



Southern Pine (Pinus taeda) 240 



Southern Pitch Pine 22 



Page 



Southern Prickly Ash 173 



Southern Red Cedar 43,241 



Southern Red Oak (Quercus schumardii 



schneckii) 86 



Southern Red Oak (Quercus rubra) 89,242 



Southern Red Oak (Quercus rubra triloba).. 89 

 Southern Shagbark Hickory (Hicoria caro- 



linse-septentrionalis). 55 



Southern Shagbark Hickory (Hicoria caro- 



linae-septentrionalis australis) 55 



Southern Shellbark 55 



Southern Silver-bell Tree 224 



Southern Soapberry 196 



Southern Spruce 24 



Southern Sugar Maple (Acer floridanum) 189 



Southern Sugar Maple (Acer floridanum 



vilhpes) 189 



Southern Thorn 140 



Southern Wax Mvrtle 60 



Southern White Cedar 38,241 



Southern White Pine 21,240 



Southern Yellow Pine (Pinus caribaea) 240 



Southern Yellow Pine (Pinus glabra) 240 



Southern Yellow Pine (Pinus echinata) 21,240 



Southern Yellow Pine (Pinus palustris) 22.240 



Southern Yellow Pine (Pinus rigida). 23 



Southern Yellow Pine (Pinus rigida serotina) 240 



Southern Yellow Pine (Pinus taeda) 240 



Southern Yucca 49 



Southwestern Black Cherry (Prunus virens). 161 

 Southwestern Black Cherry (Prunus virens 



rufula) 161 



Southwestern Locust 171,172 



Span Oak 87 



Spanish Bayonet (Yucca aloifolia) 47 



Spanish Bayonet (Yucca elata) 49 



Spanish Bayonet, (Yucca faxoniana) 48 



Spanish Bayonet (Yucca gloriosa) 47 



Spanish Bayonet (Yucca mohavensis) 48 



Spanish Bayonet (Yucca schottii) 48 



Spanish Bayonet (Yucca torreyi) 48 



Spanish Bayonet (Yucca treculeana) 48 



Spanish Broom 168 



Spanish Buckeye 198 



Spanish Dagger (Yucca aloifolia) 47 



Spanish Dagger (Yucca elata)... 49 



Spanish Dagger (Yucca faxoniana).. 48 



Spanish Dagger (Yucca gloriosa)... 47 



Spanish Dagger (Yucca mohavensis). 4S 



Spanish Dagger (Yucca schottii) 48 



Spanish Dagger (Yucca torreyi)... 48 



Spanish Dagger (Yucca treculeana) 48 



Spanish Oak (Quercus borealis maxima) 84 



Spanish Oak (Quercus coccinca).. 87 



Spanish Oak (X Quercus morehus) 97 



Spanish Oak (Quercus rubra) 89 



Spanish Oak (Quercus rubra pagodaefolia) .. 90 



Spanish Oak (Quercus texana) 85 



Spanish Stopper... 210 



Spanish Water Oak_. 89 



Spanish Wild Cherry *82 



Spanish Willow... 233 



Sparkleberry - 218 



Spatulate-leafed Thorn... 151 



Spiceberry.. - 210 



Spice Birch. 76 



Spic"-tree._ 125 



Spicewood... 211 



Spicewood, White - - 211 



Spike Hawthorn 153 



Spiked Maple. -- - 186 



Spikenard-Tree - 213 



Spindletree.. - l g5 



Spiny Myrtle.. 200 



Splinter Ash.. - 22o 



Spoon Hutch - 216 



Spoonwood (Kalmia latifolia).. 216 



Spoonwood (Tina glabra) 201 



Spotted Alder 127 



Spotted Bark 86 



Spotted Locust. 171 



Spotted Oak (Quercus borealis maxima) 84 



Spotted Oak (Quercus coccinea) 87 



Spotted Oak (Quercus nigra) 92 



Spotted Oak (Quercus rubra) 89 



Spotted Oak (Quercus shumardii schneckii). 86 



Spotted Oak (Quercus texana).. 85 



Spotted Oak (Quercus velutina) 87 



