List of Illustrations xv 



FIG. PAGE 



50. Rush seeds (much magnified) 186 



51. Some New England sedges 189 



52. From low-lying fields " Wool-grass " and " Beak-rush," 192 



53. A typical carex ( Carex hystricina) 195 



54. Nocturnal guests of the honeysuckle {Sphinx ligustri 



and Sphinx convolvtili) 203 



55. Pollen of the honeysuckle (magnified) 204 



56. " Day " or " Japan " lilies (Funkia Japonicii) 205 



57. Adam's Needle and Thread ( Yucca filamentosa} 209 



58. A wild evening primrose (CEnothera biennis) 215 



59. Jimson weed (Datura stramonium} 217 



60. Nightly visitor to the jimson weed (Sphinx Carolina)... 218 



61. Hedgebind weed (Convolvulus sepiuni) 219 



62. Bouncing Bet (Saponaria offiicinalis') 223 



63. Day lichnis or corn-cockle (Lychnis gitJiago) 226 



64^;. A flower-clock (morning) 228 



64^. A flower-clock (afternoon and evening) 229 



65. English ivy (Pledera helix) ... 234 



66. Bind weed and hop-vine 238 



67. Scaling hooks of the Virginia creeper (Ampefapsis 



quinquefolia} and of the wild clematis (Clematis 



Virginiana) ... 241 



68. Prothallus of a Southern fern (Petris serrulata) 251 



69. Antherozoids of Pteris serrulata (much magnified 253 



70. Young archegonium of a garden maiden-hair (Adi- 



antum cuneatum} (much magnified) 255 



71. " Male-fern " (Aspidiiirn felix maas) 260 



72. Opening sporangium of a Florida fern (Pteris creticd). . 262 



73. Vegetative and spore-bearing fronds of the sensitive 



fern (Onoclea sensibilis) 263 



74. Spores of a club-moss (Lycopodium complanatum) (mag- 



nified) 267 



75. A seedling pine 271 



76. Leaf-cluster and bud-scales of the white-pine (Pinus 



strobus) 275 



77. A spray of the balsam-fir (Abies balsamea) 277 



78. Crosswise section of the trunk of a fir-tree showing 



growth-rings 281 



79. Tracheids of the fir-tree 284 



80. Winged pollen of the fir (much magnified) 287 



