INDEX. 



585 



NICOTIANA. 



tficoti'ana glauca, sleep of leaves, 

 385, 386 



■ , ciioumuutation of leaves, 



386 



Nobbe, ou the rupture of the seed- 

 cuats iu a seedling of Martynia, 

 105 



Ifolana prostrata, movement of seed- 

 lings ill the dark, 50 



— — , cii'oumiratatiou of seedlins, 

 108 ^' 



Nyctitropic movement of leaves, 

 560 



Nyctitropism, or sleep of leaves, 

 281 ; in connection with radia- 

 tion, 286 ; object gained by it, 

 413 



Observati. n, methods of, 6 



CEnotliera niolUssima, sleep of leaves, 

 383 



Opuntia haeilaris, conjoint circum- 

 nutation of hypocotyl and coty- 

 ledon, '14 



• , thickening of the hypocotyl, 



96 



• , circumnutation of hypocotyl 



when erect, ) 07 



, burying of, 109 



Orange, seedling, circumnutation 

 of, 510 



Orchis pyramidalis, complex move- 

 ment of polUnia, 489 



Oxalis acetosella, circumnutation of 

 flower-stem, 224 



, eifects of exposure to radia- 

 tion at night, 287, 288, 296 



■ , circumnutation and nyoti- 



tropiT movement in full-grown 

 leaf, 326 



• , circumnutation of leaflet when 



asleep, 327 



, rate of circumnutation of 



leaflets, 404 



, effect of sunshine on leaflets, 



447 



, circumnutation oi peduncle, 



506 



OXALIS. 



Oxalis acetosella, seed-capsules, only 

 occasionally bmied, 618 



articulala, nocturnal mi,ve- 



ments of cotyledons, 307 



;• {Biophxjtum) sensiliva, !■»■ 



pidity of movement of cotyledoud 

 dming the day, 26 



, pulviuus of, 113 



, cotyledons vertical at night, 



116,118 



bupleurifolia, circumnutation 



of fbliaceous petiole, 328 



, nyctitropic movement of ter- 

 minal leaflet, 329 



cartiosa, circumnutation of 



flower-stem, 223 



, epinastio movements of flower- 

 stem, 504 



, effect of exposure at night, 



288, 296 



, movements of the flower-pe- 

 duncles due to apo;i;totropism 

 and other forces, 503-506 



corniculata (var. cuprea), 



movements of cotyledons, 26 



, rising of cotyledons, 116 



, rudimentary pulviiii of coty- 

 ledons, 119 



, development of pulvinus, 



122 



, eifect of dull hght, 124 



, experiments on leaves at night, 



288 



Jloribunda, pulvinus of coty- 

 ledons, 114 



. nocturnal movement, 118, 



307, 318 



fragrant, sleep of leaves, 



324 



Ortegesii, circumnutation of 



flower steme, 224 



, sleep of large leaves, 327 



, diameter of plant at night, 



402 

 , large leaflets affected by bright 



sunshine, 447 



Plumierii, sleep of leaves, 327 



purpurea, exposure of leaflets 



at night, 293 

 rosea, ciioumnutation of coty 



leduns, 23, 24 



