72 



cruciferou?, I, 57. 



graminaceous, epidermis, III, 156t. 



grass-like. VI. 49t, STf. 

 seeds, VI, bOf. 



ovules. III, Iblf. 



pollen, III, 152t, VI, 52t, 84t, SVf. 



seeds. III, 157t, VI, ISf, 44t, 84t, 

 87t. 



stem, III, SOf. 



vascular, leaves and stems, VI, lOlf . 

 Plataleidee, IV, 167, 192. 

 Platamodes pennsylvanica, I, 59. 



unicolor, I, 59. 

 Piatanus, I, 30,31. 

 Plates, Explanation of, I, 71-76. 

 platineum, Amblystoma, V, 11. 

 Platygobio, VI, 76, 82. 

 Platygyrium, II, 23. 

 Platynus, III, 108t, 119t, 129t. 139t, 

 140t, 151*, VI, 40*, 57t, 59*, 

 60*, 62*, 63*. 



cupripennis. III, 151*. 



decorus, VI, 40*. 



limbatus, VI, 40*. 

 platyrhinus, Heterodon, V, 43. 

 platyrhynchus, Scaphirhynchops, I, 51, 



II, 69. 



platystomus, Lepidosteus, I, 51, II, 69, 



82*, 86*. 

 Plectrophane.s IV, 178. 



nivalis, IV, 178. 

 Plegadis, IV, 192. 208. 



falcinellus, IV, 192. 



guarauna, IV, 208. 

 Plethodon, V, II, 12. 



cinereus, var. cinereus, V, 12. 

 var. dorsalis, V, 12. 

 var. erythronotus, V, 12. 



glutinosus, V, 12. 

 Plethodontidse, V, 7, 11. 

 Pleuridium, II, 18. 

 Pleurodelidte. V, 7. 8, 15. 

 Pleurolepis, I, 35, II, 38, III, 22*, 27*. 



asprellus, II, 38, III, 22*. 



pellucidus, I, 35, II, 38, 74*, 84*, 



III, 22*. 



Pleuroxus, III. 29t, 36t, 39f, 44t, 45t, 

 46t, 47t, 57t, 58t, 72t, 73t, VI, 

 70t, 72t. 

 dentatus, III, 48t, 74t. 



Pliny's Natural History, cited, III, 152. 



Ploteidaj, IV, 167, 201. 

 Plotus, IV, 201. 



anhinga, IV, 168, 201. 

 Plover, Belted Piping, IV, 194. 



Black-bellied, IV, 194. 



Field, IV, 196. 



Golden, IV, 194. 



Mountain, IV, 207. 



Piping, IV, 207. 



Prairie, IV, 196. 



Semipalmated, IV, 194. 



Upland, IV, 196. 

 Plovers, IV, 194, 207. 

 Plum, II, 13. 

 Plumatella, II, 75t, 77t. 

 Poa pratensis, III, 151t. 

 Pochard, American, IV, 200. 

 Podabrus, III, 158*. 



tomentosus. III, 152*, 158*. 

 Podasocys, IV, 207. 



montanus, IV, 207. 

 Podiceps, IV, 203. 



cristatus, IV, 163. 



holboili, IV, 203. 

 podiceps, Podilymbus, IV, 203. 

 Podicipedidaj. IV, 167, 203, 20S. 

 Podilymbus, IV, 203. 



podiceps, IV, 203. 

 Podisus, VI, llf. 



modestus. III. 94f. 



spinosus, III, L30t, ]44t, VI, 28t, 32t. 

 Podosphsera kunzei, I, 58. 

 Podura, VI, 52t, 64t, 70t, 93t. 

 Pfficilichthys, I, 34, II, 41, III, 27*, 30t,. 

 35t. 



asprigenis, II, 41, 75*, 84*. Ill, 23*. 



cseruleus, 1, 34, II, 41. 



flabellatus, I, 34, II, 42. 



jessise, II, 41. 



lineolatus, I, 34, II, 42. 



niger, I, 34, II, 41. 



spectabilis, I, 34, II, 41, 42, III, 23*. 



variatus, II, 41, III, 23*. 

 Pogonatum, 11, 21. 

 Poke, IV, 193. 

 Polioptila, IV, 172. 



cserulea, IV, 172. 

 Pollen, III, 159f, VI, 50t, 55t, 64t. 



of Ambrosia, III, 157t, VI, 63^, 

 64t. 



of blue-grass. III, 155t, VI, 40t. 



