INDEX— (Continued) 



157 



Menzies' Rattlesnake Plantain, 118. 

 Metamorphosis, Goethe's theory, 



XV. 



Moccasin Flower, 10. 

 Miiller, 17. 

 Mycological clubs, v. 



Night insects, 30. 



Nodding Lady's-Tresses, 95. 



Pogonia, 72. 

 Nomenclature, changes in, viii. 



Orchis, 19. 



Key to species, 20. 

 spectabilis, 20. 



Pale-green Orchis, Small, 45. 

 Parts of a flower modified leaves, 



XV. 



Peramium, iii. 



Key to species, 115. 



Menziesii, 118. 



pubescens, 116. 



repens, 115. 

 Pink Lady's Slipper, 10. 

 Pogonia, 65. 



affinis, 76. 



divaricata, 73. 



Key to species, 69. 



ophioglossoides, 69. 



trianthophora, 72. 



verticillata, 74. 

 Prairie White Fringed Orchis, 56. 

 Purple Fringed Orchis, Large, 56. 



Smaller, 59. 

 Puttyroot, 151. 



Ragged Orchis, 54. 

 Ram's-head Lady's-Slipper, 8. 

 Rattlesnake Plantain, iii. 



Reproductive organs, xvii. 

 Rose Pogonia, 69. 

 Round-leaved Orchis, Large, 29. 

 Small, 23. 



"Sabot de la Vierge," 17. 

 Saprophytes, 134. 

 Self fertilisation, 38, 68. 

 Showy Lady's-Slipper, 11. 



Orchis, 20. 

 Slender Lady's-Tresses, 100. 

 Small-flowered coralroot, 140. 



Green Wood Orchis, 43. 



Northern Bog Orchis, 33. 



Pale-green Orchis, 45. 



Round-leaved Orchis, 23. 



Southern Yellow Orchis, 41. 



White Lady's-Slipper, 14. 



Yellow Lady's-Slipper, 17. 

 Smaller Purple Fringed Orchis, 59. 



Whorled Pogonia, 76. 

 Snake Mouth, 65. 

 Southern Small White Orchis, 34. 



Twayblade, no. 

 Spider lurking in blossoms, 55, 62. 

 Sphinx moth, 26. 



day-flying, 62. 

 Spreading Pogonia, 73. 

 Sprengel, xix. 

 Striped Coralroot, 143. 

 Structure of orchids, xvi. 



Tall Leafy Green Orchis, 36, 39. 



White Bog Orchis, 37, 39. 

 Terrestrial roots, xiv. 

 Thoreau, 57. 

 "Three Birds," 72. 

 Tipularia unifolia, 145. 

 Tubercled Orchis, 45. 

 Twayblade, 103, 125. 



