Plethostephia, yi. 67. 
Plinia, v. 39. 
Plinia pedunculata, v. 41. 
Plinia rubra, v. 41. 
Plowrightia morbosa, iv. 12. 
Plum, Blackman, iv. 24. 
Plum, Caddo Chief, iv. 26. 
Plum, Canada, iv. 15. 
Plum, Chickasaw, iv. 25. 
Plum, Cocoa, iv. 3. 
Plum, Colleta, iv. 26. 
Plum, cultivation of, iv. 9. 
Plum, Cumberland, iy. 24. 
Plum, Deep Creek, iv. 20. 
Plum, De Soto, iv. 20. 
Plum, Downward, v. 175. 
Plum, Early Red, iv. 26. 
Plum, Forest Garden, iv. 20. 
Plum, Forest Rose, iv. 20, 24. 
Plum, Garfield, iv. 24. 
Plum, Golden Beauty, iv. 24. 
Plum, Guiana, vii. 27. 
Plum, Indian Chief, iv. 24. 
Plum, Indiana Chief, iv. 24. 
Plum, Indiana Red, iv. 24. 
Plum, Itaska, iv. 20. 
Plum, Jennie Lucas, iv. 26, 
Plum, Kickapoo, iv. 20. 
Plum, Louisa, iv. 20. 
Plum, Miner, iv. 20, 24. 
Plum, Minnetonka, iv. 20. 
Plum, Missouri Apricot, iv. 24. 
Plum, Pigeon, vi. 119. 
Plum, Pottawattamie, iv. 26. 
Plum, Purple Yosemite, iv. 16. 
Plum, Quaker, iv. 16. 
Plum, Red, iv. 15. 
Plum, Sucker City, iv. 24. 
Plum, Transparent, iv. 26. 
Plum, Wayland, iv. 24. 
Plum, Weaver, iv. 16. 
Plum, Wild, iv. 19, 23, 31. 
Plum, Wild Goose, iv. 24. 
Plum-pockets, iv. 12. 
Plum-tree, Black, v. 41. 
Pocophorum, iii. 7. 
Podocarpus (?) nucifera, x. 56. 
Podosesia Syringe, vi. 27. 
Podosphera biuncinata, v. 2. 
Podosphera Oxyacanthe, iv. 12. 
Pogonotrophe, vii. 91. 
Pohlana, i. 65. 
Poison Dogwood, iii. 23. 
Poison Elder, iii. 24. 
Poison Ivy, iii. 9, 10. 
Poison Sumach, iii. 23. 
Poison Wood, iii. 13, 14. 
Poison-tree, iii. 24. 
Poitza, ii. 75. 
Poiteau, Alexandre, ii. 75. 
Polita, ix. 9. 
Pollen of Pinus, xi. 4. 
Pollination of Yucea, x. 2. 
PoLyGonaces, vi. 113. 
Polygonum Uvifera, vi. 115. 
Polygraphus rufipennis, xii. 25. 
Polyphemus moth, v. 9. 
Polyporus amorphus, vi. 20. 
Polyporus annosus, xi. 11, 
Polyporus applanatus, ix. 49. 
Polyporus betulinus, ix. 49. 
Polyporus cinnabarinus, iv. 12. 
Polyporus conchifer, vii. 42. 
Polyporus graveolens, viii. 13. 
GENERAL INDEX. 
Polyporus Halesie, vi. 20. 
Polyporus officinalis, xii. 5. 
Polyporus piceinus, xii. 26. 
Polyporus Pilote, xii. 61. 
Polyporus salicinus, ix. 101. 
Polyporus Schweintzii, xi. 11. 
Polyporus volvatus, xi. 12 ; xii. 26, 
Polyspora, i. 39. 
Polyspora azillaris, i. 39. 
Pomette Bleue, iv. 89. 
Pond Apple, i. 29. 
Pond Pine, xi. 119. 
Pond’s Extract, v. 4, 
Ponderose, xi. 4. 
Poplar, ix. 161. 
Poplar, Gray, ix. 154. 
Poplar, Lombardy, ix. 153. 
Poplar, Necklace, ix. 181. 
Poplar, Trembling, ix. 155. 
Poplar, White, ix. 154. 
Populin, ix. 155. 
Populus, ix. 151. 
Populus acuminata, ix. 172 ; xiv. 69. 
Populus alba, ix. 154. 
Populus alba, 8, ix. 154. 
Populus alba, B pyramidalis, ix. 154, 
Populus alba, var. Bolleana, ix. 154. 
Populus alba x tremula, b canescens, ix. 154. 
Populus albo-tremula, ix. 154, 
Populus, androgynous aments of, ix. 151. 
Populus angulata, ix. 179. 
Populus angulata tortuosa, ix. 179. 
Populus angulata, a serotina, ix. 179. 
Populus angulosa, ix. 179. 
Populus angustifolia, ix. 171 ; xiv. 105. 
Populus angustifolia, ix. 175. 
Populus argentea, ix. 163. 
Populus A theniensis, ix. 158. 
Populus australis, ix. 155. 
Populus balsamifera, ix. 167 ; xiv. 105. 
Populus balsamifera, ix. 152, 163, 175. 
Populus balsamifera lanceolata, ix. 167. 
Populus balsamifera suaveolens, ix. 152. 
Populus balsamifera viminalis, ix. 153. 
Populus balsamifera, « genuina, ix. 167. 
Populus balsamifera, g laurifolia, ix. 153. 
Populus balsamifera, vy, ix. 175. 
Populus balsami, 
Populus balsamifera, var. candicans, ix. 169. 
Populus betulifolia, ix. 153. 
Populus biformis, ix. 155. 
Populus Bolleana, ix. 154. 
Populus Canadensis, ix. 179, 183. 
Populus Canadensis, 8 discolor, ix. 179. 
Populus Canadensis, y angustifolia, ix. 171. 
Populus candicans, ix. 169. 
Populus canescens, ix. 154. 
Populus Carolinensis, ix. 179. 
Populus caudina, ix. 153. 
Populus Certinensis, ix. 153. 
Populus ciliata, ix. 152. 
Populus cordifolia, ix. 163. 
Populus deltoidea, ix. 179. 
Populus dilatata, ix. 153. 
Populus dilatata, 8 Carolinensis, ix. 179. 
Populus diversifolia, ix. 155. 
Populus, economic properties of, ix. 155. 
Populus Euphratensis, ix. 155. 
Populus Euphratica, ix. 155. 
Populus fastigiata, ix. 153. 
Populus Fremontii, ix. 183. 
Populus Fremontii, xiv. 71, 73. 
tifolia, ix. 171. 
Populus balsamifera, var. (?) Californica, ix. 
139 
Populus Fremontii, var. (?) Wislizeni, ix. 183 ; 
xiv. 71. 
Populus, fungal diseases of, ix. 156. 
Populus glandulosa, ix. 179. 
Populus Graeca, ix. 154, 158. 
Populus grandidentata, ix. 161 ; xiv. 105. 
Populus grandidentata, B pendula, ix. 161. 
Populus heterophylla, ix. 163 ; xiv. 105. 
Populus heterophylla, ix. 179. 
Populus heterophylla, p argentea, ix. 163. 
Populus Hudsonica, ix. 153. 
Populus hybrida, ix. 154. 
Populus, hybrids of, ix. 152. 
Populus, insect enemies of, ix. 155. 
Populus Italica, ix. 158. 
Populus levigata, ix. 179. 
Populus latifolia, ix. 161, 179. 
Populus laurifolia, ix. 153. 
Populus longifolia, ix. 153. 
Populus major, ix. 154. 
Populus Marilandica, ix. 179. 
Populus, medical properties of, ix. 155. 
Populus Mexicana, xiv. 73. 
Populus microcarpa, ix. 152. 
Populus monilifera, ix. 179, 183 ; xiv. 71. 
Populus monticola, ix. 152. 
Populus monticola, wood of, ix. 152. 
Populus Neapolitana, ix. 153. 
Populus nigra, ix. 153. 
Populus nigra, ix. 179. 
Populus nigra Italica, ix. 153. 
Populus nigra, B Helvetica, ix. 179. 
Populus nigra, 8 pyramidalis, ix. 153. 
Populus nigra, B Virginiana, ix. 179. 
Populus nigra in the United States, ix. 153. 
Populus nivea, ix. 154. 
Populus pendula, ix. 155. 
Populus pseudobalsamifera, ix. 152. 
Populus pyramidalis, ix. 153. 
Populus pyramidata, ix. 153. 
Populus salicifolia, ix. 171. 
Populus serotina, ix. 179. 
Populus Sieboldi, ix. 155. 
Populus suaveolens, ix. 152. 
Populus tremula, ix. 154. 
Populus tremula, var. villosa, ix. 155. 
Populus tremula, var., ix. 158. 
Populus tremula pendula, ix. 155. 
Populus tremuliformis, ix. 158. 
Populus tremuloides, ix. 158 ; xiv. 105. 
Populus tremuloides, a pendula, ix. 158. 
Populus trepida, ix. 158. 
Populus trichocarpa, ix. 175. 
Populus trichocarpa, var. cupulata, ix. 175. 
Populus versicolor, ix. 153. 
Populus villosa, ix. 155. 
Populus Virginiana, ix. 179. 
Populus Wislizeni, xiv. 71. 
Porcelia, i. 21. 
Porcelia parviflora, i. 29. 
Porcelia triloba, i. 23. 
Pork-Tree, Fat, iv. 4. 
Pork Wood, vi. 111. 
Porlieria, i. 59. 
Porlieria hygrometrica, i. 59, 60. 
Porothrinax, x. 49 ; xiv. 79. 
Port Orford Cedar, x. 119. 
Porter, Thomas Conrad, iv. 28. 
Portugal Laurel, iv. 11. 
Portuna, v. 130. 
Portuna, v. 129. 
Possum Oak, viii. 166. 
Post Cedar, x. 136. 
Post Oak, viii. 37. 
