58-i 



INDEX. 



MLLILOTUS. 



Melihius parriflora, sleep of leaves, 

 317 



Pttitpierreana, leaves exposed 



at night, 291, 296 



, sleep of leaves, 347 



secuiulijiora, sleep of leaves, 



347 



tuaveolens, leaves exposed at 



night, 291 



, sleep of leaves, 347 



sulcata, sleep of leaves, 347 



Taurica, leaves exposed at 



night, 291 



, sleep of leaves, 347, 415 

 Methods of observation, 6 

 Mimosa albida, cotyledons vertical 



at night, 116 



, not sensitive to contact, 127 



, sleep of cotyledons, 308 



, rudimentary leaflets, 3d4 



, nyctitropic movements of 



leaver, 379, 380 

 , circunmutation of the main 



petiole of young leaf, 381 

 , torsion, or rotation of leaves 



and leaflets, 400 



, first true leaf, 416 



, effect of brght sunshine en 



basal leaflets, 445 



maryinata, nyctitropic move- 

 ments of leaflets,* 381 



pudica, movement of coty- 

 ledons, 105 



, rupture of the seed-coats, 



105 

 , circumnutation of cotyledons, 



109 



, pulvini of, 113, 115 



, cotyledons vertical at night, 



116 

 , hardly sensitive to contact, 



127 

 , effect of exposure at night, 



293 

 , nocturnal movement of leaves, 



297 



, sleep of cotyledons, 308 



, circumnutation and nycti- 

 tropic movement of main petiole, 



374-378 

 , of leaflets, 378 



NEPTUNIA. 



Mimosa albida, circumnutation and 

 nyctitropic movement of pinnae, 

 402 



, number of ellipses described 



in given time, 406 



, effect of bright sunshine on 



leaflets, 446 



Mirabilis jalapa and longiflora, 

 nocturnal movements of cotyle- 

 dons, 307 



, nyctitropic movement of 



leaves,' 387 



Mohl, on heliotropism in ten- 

 drils, stems, and twining plants, 

 451 



Momentum-like movement, the nc- 

 cumnlated effects of apogeo- 

 tropi-m, 508 



Monocotyledons, sleep of leaves, 

 389 



Monotropa hypripifys, mode of 

 breaking through the ground, 86 



Mori-en, on the movements of 

 stamens of Sparmanuia and 

 Cereus, 226 



Miiller, Fritz, on Cassia fora, 34; 

 on the circumnutation of Linum 

 usitotissimum, 203; movements 

 of the flower-stems of an Alisma, 

 226 



Mutisia cUmatis^ movement of 

 leaves, 246 



, leaves not heliotropic, 451 



N. 



Natural selection in connection 

 with geotropism, heliotropism, 

 &c., 570 



Nephrodium molle, circumnutation 

 of very young frond, 63 



, of older frond, 257 



, slight movement of fronds, 



509 



Neptunia oleracea, sensitiveness to 

 contact, 128 



, nyctitropic movement of leaf- 

 lets, 374 



, of pinnae, 402 



