282 



INDEX 



Page 

 Red Elderberry 236 



Red Elm (Ulmus alata) 112 



Red Elm (Ulmus crassifolia)... 112 



Red Elm (Ulmus fulva).. 112 



Red Elm (Ulmus serotina) 113 



Red Fir (Abies amabilis). 31 



Red Fir (Abies magnifica) 32 



Red Fir (Abies nobilis) 32 



Red Fir (Pseudotsuga taxifolia).. 28,240 



Red Gum 127,242 



Red Haw (Crataegus apiifolia)... 151 



Red Haw (Crataegus brachyacantha) 152 



Red Haw (Crataegus crus-galli) 135 



Red Haw (Crataegus mollis) 143 



Red Haw (Crataegus phaenopyrum) 151 



Red Haw (Crataegus tomentosa). 152 



Red Haw (Crataegus viridis) 140 



Red Hemlock 27 



Red Hickory (Hicoria alba) 56 



Red Hickory (Hicoria glabra) 57 



Red Ironwood 198 



Red Judas-tree . 167 



Red Larch „ 23 



Red Locust (Robinia pseudoacacia) 171 



Red Locust (Robinia viscosa) 172 



Red Maple (Acerrubrum) 190,242 



Red Maple (Acer rubrum drummondii) 191 



Red Maple (Acer rubrum tornentosum) 191 



Red Maple (Acer rubrum tridens) 191 



Red Mulberry 116 



Red Oak (Quercus borealis). 83 



Red Oak (Quercus borealis maxima) 84, 94, 242 



Red Oak (Quercus coccinea) 87 



Red Oak (Quercus nigra). 92,242 



Red Oak (Quercus palustris) 85,242 



Red Oak (Quercus phellos) 93,242 



Red Oak (Quercus rubra) 89,242 



Red Oak (Quercus rubra pagodaefolia) 90,242 



Red Oak (Quercus texana) 85,242 



Red Oak (Quercus velutina) 87,242 



Red Pine (Pinus ponderosa) . . . 17 



Red Pine (Pinus resinosa).. 16,239 



Red Pine (Pinus rigida) 20 



Red Pine (Pseudotsuga taxifolia) 28 



Red Plum (Prunus americana) 155 



Red Plum (Prunus nigra) 155 



Red River Maple 191 



Red Sassafras... 126 



Red Silver Fir 31 



Red Spruce (Picea rubra).. 24,25,240 



Red Spruce (Pseudotsuga taxifolia) 28 



Red Stopper (Eugenia confusa) 211 



Red Stopper (Eugenia rhombea) 210 



Red TitL. 182 



Red Willow 69 



Red-bark Cypress 38 



Redbark Pine. 17 



Redberry Elder.. 236. 



Red-berry Juniper 42* 



Redbud (Cercis canadensis) 166,167 



Redbud (Cercis reniformis). 167 



Redbud, American... 167 



Redbud, California 167 



Redbud, Double 167 



Redbud, Texas 167 



Redbush 87 



Red-flowered Buckeye 195 



Red-flowering Locust. 172 



Redfruit Ailanthus 176 



Red-heart Hickory (Hicoria cordiformis) 52 



Redheart Hickory (Hicoria ovata) 54 



Redwood (Sequoia sempervirens) 33,241 



Redwood (Swietenia mahagoni) 178 



Redwood, California 33 



Redwood, Coast 33 



Redwood, Humboldt 33 



Redwood, Madura... 178 



Red-wooded Elm. 112 



Remarkable Pine 19 



Retama 168 



Reynosia 198 



Reynosia latifolia 198 



Reynosia septentrionalis 198 



Rhacoma... 185 



Rhacoma crossopetalum.. 185 



Rhamnaceae 198 



Rhamnus 198 



Rhamnus caroliniana 199 



Rhamnus crocea 198, 199 



Page 



Rhamnus crocea ilicifolia 199 



Rhamnus crocea insularis 199 



Rhamnus crocea insularis forma pilosa 199 



Rhamnus crocea pilosa 199 



Rhamnus dahurica 199 



Rhamnus ilicifolia 198 



Rhamnus pilosa. 199 



Rhamnus pirifolia 199 



Rhamnus purshiana. 199 



Rhizophora _ 210 



Rhizophora mangle 210 



Rhizophoraceae 210 



Rhododendron 216 



Rhododendron californicum 216 



Rhododendron, Carolina.. 216 



Rhododendron, Catawba... 216 



Rhododendron catawbiense 216 



Rhododendron, Great... 216 



Rhododendron maximum 216 



Rhododendron maximum album... 216 



Rhododendron maximum purpuieum 216 



Rhododendron maximum roseum. 216 



Rhododendron, Purple-flower 216 



Rhododendron, Rose-bay. 216 



Rhododendron, Rose-flower 216 



Rhododendron, White-flower... 216 



Rhombic-leaved Alder 80 



Rhus 180 



Rhus copallina 180 



Rhus copallina lanceolata. 180 



Rhus copallina leucantha 180 



Rhus cotinoides 179 



Rhus glabra 180 



Rhus hirta 180 



X Rhus hybrida 180 



Rhus integri folia.. 181 



Rhus integrifolia serrata 181 



Rhus lamina.. 181 



Rhus leucantha. 180 



Rhus metopium 179 



Rhus typhina 180 



Rhus venenata 181 



Rhus vernix.. 181 



Ridge Beech. 81 



Ridge Hickory 55 



Ridge Oak (Quercus marilandica) 90 



Ridge Oak (Quercus stellata) 106 



Ridge Pine (Pinus pungens) 21 



Ridge Pine (Pinus rigida) 20 



Rigid Pine 20 



River Ash. 227 



River Birch (Betula lenta) 76 



River Birch (Betula nigra) 76,241 



River Cottonwood 62 



River Cypress 34 



River Hawthorn (Crataegus douglasii). 153 



River Hawthorn (Crataegus rivularis) 153 



River Maple. 190 



River Pine.. 20 



River Poplar 65 



River-bank Willow.. 71 



Robinia 171 



Robinia bella-rosea._ 172 



Robinia dubia 172 



Robinia grandiflora. 172 



Robinia neo-mexicana 171 



Robinia neo-mexicana luxurians 171 



Rojbinia pseudoacacia 171, 242 



Robinia pseudoacacia amplifolia 171 



Robinia pseudoacacia angustifolia. 171 



Robinia pseudoacacia argenteo-variegata 171 



Robinia pseudoacacia aurea -171 



Robinia pseudoacacia crispa 171 



Robinia pseudoacacia decaisneana 171 



Robinia pseudoacacia dissecta. 171 



Robinia pseudoacacia glaucescens 171 



Robinia pseudoacacia inermis. 171 



Robinia pseudoacacia latisiliqua 171 



Robinia pseudoacacia pendula 171 



Robinia pseudoacacia purpurea. 171 



Robinia pseudoacacia pyramidalis 171 



Robinia pseudoacacia spectabilis.. 171 



Robinia pseudoacacia tortuosa 171 



Robinia pseudoacacia unifoliola.. 171 



Robinia viscosa 172 



Robinia viscosa albiflora 172 



"Roble".. 104 



Rock Cedar.. 42 



Rock Chestnut Oak. 110 







