GENERAL I.XDEX. 



157 



Orchis, Feather-leaved, see //. blephari- 

 glottis. 

 Flaming, see H. psycodes. 

 Fringed, 93. 

 '• Gay, see Orchis spcctabilis. 



" Greenish, see //. virescens. 



" Green Fringed, sec//, lacera. 



Large Purple Fringed, sec II. fim- 

 briate. 

 " Large Two-leaved, see H. orbicu- 



lata, Torrey. 

 " Naked-gland, see Gymnadenia. 



'' Northern Green, see //. hyperborea. 



Northern White, sec //. dilatata. 

 " One-leaved, see II. obtusata. 



" Round-leaved, see Orchis rotitndi- 



folia. 

 " Showy, see Orchis spcctabilis. 



" Small Purple Fringed, see H. psy- 



codes. 

 " Small Two leaved, see H. Ilookeri. 



Spring, see O. spcctabilis. 

 " Three-leaved, sec //. tridentata. 



True, 39. 



White Fringed, see H. blcphari- 

 glottis. 

 " Yellow Fringed, see H. Ciliaris. 



Ovary, or Ovarium, explanation of term, 7. 



Papillae, in Cypripedium, c8. 

 Pedicel, Drum-like, 42, 102. 

 Peristylus viridis, 44; illustration. 44. 

 Phancroptcra curvicauda, in. 

 Plantanthera dilatata, see//, dilatata. 



fimbriata, Lindley,sce H. psycodes. 

 /lava. Gray, see H. virescens. 

 holopetala, Lindley, see //. ble- 

 phariglottis. var. holopetala. 

 " Hooker i, see H. Hooker i. 



" Huroncnsis, Lindley, see H. hyper- 



borea. 

 " psycodes, Lindley, see H. lacera. 



" rotundi/olia, Lindley, see Orchis 



rotundi/olia. 

 Platanthera. Richard, 39 ; conspicuousness of 



some species at night, 102. 

 Pogonia, Jussieu, 56 ; development of different 



species, 117. 

 Pogonia affinis, C. F. Austin, 56. 



" ophioglossoidcs, Nuttall, 80-85, IX 7; 



fertilization, 84 ; illustrations, 80, 81. 



" pendula, Lindley, 116; illustration, 



118. 

 " verticillata, Nuttall, 56, 117 ; note, 90 ; 

 illustration, 55. 

 Pogonia, Adder's-mouth, see P. ophioglossoides. 

 " Nodding, see P. pendula. 



" Pendent, same as above. 

 " Snak^-mouth, see P. ophioglossoides. 

 " Whorled, see P. verticillata. 

 Pollen-mass, explanation of term, _?t, 145. 



Pollinium, or pollen-mass with stalk and disc, 



sec above. 

 Preacher in the Pulpit, see Orchis Spcctabilis. 

 Purple Fringed Orchis, see //. fimbriata. 

 Pursh, color of Cyp. acaale, 29 ; Aplectr-ttn 



hyemale. 74 ; on G. ptibescens, 124. 

 Putty-root, sec Aplectrum hyemale. 



Ragged-fringed Orchis, see //. lacera. 

 Ram's-head Lady's Slipper, see Cyp. arieti- 



num. 

 Rattlesnake Plantain, see Goodyera. 

 Rein Orchis, see Habcnaria. 

 Rostellum, explanation of term, 7; in O. vias- 



cztla, 21 ; lacking in Cypripedium, 



27; structure in //. Hooker 7, 41; ini. 



orata, 58-60 ; in H. dilatata, 69 ; 



lacking in P. ophioglossoides, 88 ; 



structure in Spiranthes, 106-109 ; 



in Goodyera, 1 19-120 ; in O. specta- 



bilis, 145; illustrations, 7, 20, 59, 107. 

 Roots of Orchids, 9. 

 Round-leaved Orchis, see O. rotundi/olia. 



Sachs, on Corallorhiza, 73 ; reference to his 

 Text Book, 116 ; on structure of Ne- 

 ottia, 126. 

 Scape, explanation of term, 9, 

 Scrofula-weed, see Goodyera pubescens. 

 Scudder, Dr. Samuel H., on fertilization of P. 



ophioglossoides, 85-88. 

 Seeds, number produced by Orchids, 38. 

 Sesia, species of, fertilizers of //. psycodes, iti, 



,1, 

 Showy Lady's Slipper, see Cyp. speclabile. 

 Small Late Coral-root, see Corallorhiza odonto- 



rhiza. 

 Small Round-leaved Orchis, see O. rotundi- 



folia. 

 Smaller Two-leaved Orchis, sec //. Ilookeri. 

 Smith, S. I., on fertilization of Cyp. spectabile, 



78 ; //. psycodes, in. 

 Snake-mouth Pogonia, sec P. ophioglossoides. 

 Species identical with those of Great Britain. 

 Sphyjzx drupiferartim, with pollen-masses, 



102. 

 Spiranthes, Richard, 65 ; structure of, 106. 

 Spiranthes, ccstivalis, Oakes' Cat., see S. laii- 

 yblia. 

 " autumnalis, 106; illustration, 107. 



" Beckii, Lindley, see S. gracilis. 



" cernua, Richari, 127; structure 



and fertilization, 106-110; illustra- 

 tion, 129. 

 " decipiens, see Goodyera Menziesii. 



" gemmipara, Lindley, see 5". Ro- 



manzoviana. 

 " gracilis, Bigelow, 106-110; illus 



tration, 129. 

 " graminca. Lindley, var. Walteri, 



106 ; illustration, 103. 



