586 



INDEX. 



OXALT8. 



Oxalit rosea, pulvinus of, 113 



, movement of cotyledons at 



night. 117, 118. 307 



, effect of dull light, 124 



, non - sensitive cotyledons, 



127 



sensitiva, movement of coty- 

 ledons, 109, 127, 128 



, circumnutation of flower-stem, 



224 



, nocturnal movement of coty- 

 ledons, 307, 312 



, sleep of leaves, 327 



tropceoloides, movement of co- 

 tyledons at night, 118, 120 



Valdiviana, conjoint, circum- 

 nutation of cotyledons and hypo- 

 cotyl, 25 



, cotyledons rising vertically at 



night, 114, 115, 117, 118 



, non-sensitive cotyledons, 127 



, nocturnal movement of coty- 

 ledon, 307, 312 



, sleep of leaves and not of co- 

 tyledons, 315 



-, movements of leaves, 327 



P. 



Pachira aquatica, unequal cotyle- 

 dons, 95, n. 

 Pancratium littorale, movement of 



leaves, 255 

 Paraheliotropism, or diurnal sleep 



of leaves, 445 

 Passiflora gracilis, circumnutation 



and nyctitropio movement of 



leaves, 383, 384 

 , apogeotropic movement of 



tendrils, 5 10 



, sensitiveness of tendrils, 550 



Pelargonium zonale, cir^umnutation 



of stem, 203 

 , and downward movement of 



young leaf, 232, 233, 269 

 Petioles, the, rising of, beneficial to 



plant at night, 402 

 Petunia violacea, downward move- 



mcnt and' circummitnlion of very 

 yoang leaf, 248, 249, 269. 



Pfeffer, Prof., on the turgesccnce of 

 the cells, 2 ; on pulviuiof leaves, 

 113, 117; sleep movements "of 

 leaves, 280, 283, 28 1; nocturnal 

 rising of leaves of Mai va, 324 ; 

 movements of leaflets in /V.-xro- 

 dium (lyrans, 358; on PJiyllan- 

 thus Niruri, 388; influence' of a 

 pulvinus on leaves, 3.J6; periodic 

 movements of sleeping leaves, 

 407, 408; movements of petals, 

 414; effect of bright sunshine on 

 leaflets of Robinia, 445 ; effect of 

 light on parts provided with pul- 

 vini, 363 



Phalaris Canariensis, movements of 

 old seedlings, 62 



, circumnutatiou of cotyledons, 



63, 64, 108 



, heliotropic movement and cir- 

 cumnutation of cotyledon towards 

 a dim lateral light, 427 



, sensitiveness of cotyledon to 



light, 455 



, effect of exclusion of light 



from tips of cotyledons, 456 



, manner of bending towards 



light, 457 



, effects of painting with Indian 



ink, 467 



, transmitted effects of light, 



469 



, Literal illumination of tip, 



470 



, apogeotropic movement of the 



sheath-like cotyledons, 497 



, change from a straight up- 

 ward apogeotropic course to cir- 

 cumnutation, 499 



, apogeotropio movement of 



cotyledons, 500 



Phaseolus Hernandesii, nocturnal 

 movement of leaves and leaflets. 

 368 



caracalla, 93 



, nocturnal movement of leavea 



368 



, effect of bright sunshine 02 

 leaflets, 446 



