584 



INDEX. 



MELILOTCS. 



Melilotus parviflora, sleep of eaves, 

 347 



Petitpierreana, leaves exposed 



at night, 291, 296 



, sleep of leaves, 347 



secundiflora, sleep of leaves, 



347 

 suaveolens, 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 alhida, cotyledons vertical 



at night, 116 



, not sensitive to contact, 127 



, sleep of cotyledons, 308 



, rudimentary leaflets, 364 



, nyctitropio movements of 



leaves, 379, 380 

 , ciicumnutation of the main 



petiole of young leaf, 381 

 , torsion, or rotation of leaves 



and leaflets, 400 



, first ti-ue leaf, 416 



, effect of bright sunshine on 



basal leaflets, 445 



marginata, nyctitropio 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- 

 tropio movement of main petiola, 



374-378 

 , of leaflets, 378 



Mimosa albida, circumnutation and 

 nyctitropio movement of piunoa, 

 402 



, number of ellipses described 



in given time, 406 



, effect of bright sunshine on 



leaflets, 446 



Mirahilis jalapa and Ungiflora-. 

 nocturnal movements of cotyle- 

 dons, 307 



, nyctitropio movement of 



leaves, 387 



Mohl, on heliotropism in ten- 

 drils, stems, and twining plants, 

 451 



Momentum-like movement, the ac- 

 cumulated effects of apogeo- 

 tropi-m, 508 



Monocotyledons, sleep of leaves. 

 389 



Monotropa hypopitys, mode of 

 breaking through the ground, 86 



Morren, on the movements of 

 stamens of Spaimannia and 

 Cereus, 226 



Miiller, Fritz, on Cassia tora, 34 : 

 on the circumnutation of Linum 

 usitatissimitm, 203 ; movements 

 of tlie flower-stems of an Alisma, 

 226 



Mutisia clematis, movement of 

 leaves, 246 



, leaves not heliotropio, 451 



Natural selection in connection 



witli geotropism, heliotropism, 



&c., 570 

 Nephrodium molle, circumnutation 



of very young frond, 66 



, of older frond, 257 



, slight movement of fronds, 



509 

 Neptunia oleracea, sensitiveness to 



conta t, 128 

 , nyctitropio movement of leaf 



lets 374 



, of pinnsB, 402 



