OSAGE ORANGE, 56. 



OSMANTHUS, 4. 



OSTRYA, 147. 



OXYDENDRUM, 129. 



PAGODA-TREE, JAPAN, 171. 



PALIURUS, 55. 



PAPAW, 69. 



PAPER MULBERRY, 67. 



PARROTIA, 110. 



PARROTIOPSrS, 110. 



PAULOWNIA, 49. 



PEA-TREE, 163. 



PEACH, 136. 



PEAR, 61, n, 85, 100, 138. 



PECAN, 179. 



PEPPERIDGE, 85. 



PERSEA, 11. 



PERSIMMON, 82. 



PHELLODENDRON, 158. 



PHOTINIA, 140. 



PICEA, 16. 



PINE, 13. 



PINUS, 13. 



PLATANUS, 63. 



PLATYCARYA, 177. 



PLUM, 60, 144. 



PLUM-YEW, 20. 



PONCIRUS, 152. 



POPLAR, 89, 115. 



POPULUS, 89, 115. 



PORTUGAL LAUREL, 8. 



PRICKLY ASH, 165. 



PRIDE OF INDIA 172, 183. 



PRUNUS, 8, 60, 99, 135, 136, 144. 



PSEUDOLARIX, 33. 



PSEUDOTSUGA, 21. 



PTELEA, 152. 



PTEROCARYA, 179. 



PTEROCELTIS, 104. 



PTEROSTYRAX, 111. 



PYRUS, 58, 61, n, 85, 100. 138. 



QUERCUS, 80, 96, 127. 



QUINCE, 83. 



RAISIN-TREE, JAPANESE 103 



RED BAY, 11. 



REDBUD, 72. 



RED CEDAR, 26. 



RED OAK group, 96. 



RETINISPORA, 28. 



RETINOSPORA, 28. 



RHAMNUS, 41, 78, 113. 



RHODODENDRON, 9, 80. 

 RHUS, 170, 174. 

 ROBINIA, 165, 168. 

 SALIX, 78, 114. 

 SAMBUCUS, 160. 

 SASSAFRAS, 75, 90. 

 SCIADOPITYS, 13. 

 SEA-BUCKTHORN, 52. 

 SEQUOIA, 23. 

 SHADBUSH, 131. 

 SHEEP-BERRY, 40. 

 9HEPHERDIA, 42. 

 SHINGLE OAK, 80. 

 SHRUBBY ALTHEA, 89. 

 SILK-TREE, 180. 

 SILVERBELL-TREE, 128. 

 SINOWILSONIA, 108. 

 SMOKE-TREE, AMERICAN, 66. 

 SNOWDROP-TREE, 128. 

 SOPHORA, 171. 



SORIBUS, 97, 131, 176. 

 SORREL-TREE, 129. 

 SOUR GUM, 85. 

 90URWOOD, 129. 

 SPICE-BUSH, 12, 75, 87. 

 SPINDLE-TREE, 41. 



SPRUCE, 16. 



STAPHYLEA, 150. 



STEWARTIA, 118. 



STORAX, 112. 

 STYRAX, 112. 



SUGAR- BERRY, 104, 124. 



SUMAC, 170, 174. 



SWAMP PRIVET, 38. 



SWEET GUM, 88. 



SWEET-LEAF, 129. 



SYCAMORE, 63. 



SYMPLOOOS, 129. 



SYRINGA, 45. 



TAMARACK, 33. 



TAMARISK, 31. 



TAMARIX, 31. 



TAXODIUM, 32. 



TAXUS 19. 

 ' TETRACENTRON, 102. 



THUJA, 29. 



THUJOPSrS, 28. 



TILIA, 94, 126. 



TORREYA, 20. 



TREE OF HEAVEN, 167. 



TSUGA, 17. 



39 



