[page 574]

INDEX.

ABIES--AMPHICARPOEA.

A.

Abies communis, effect of killing or injuring the leading shoot, 187 -- pectinata, effect of killing or injuring the leading shoot, 187 --, affected by Aecidium elatinum, 188

Abronia umbellata, its single, developed cotyledon, 78 --, rudimentary cotyledon, 95 --, rupture of the seed coats, 105

Abutilon Darwinii, sleep of leaves and not of cotyledons, 314 --, nocturnal movement of leaves, 323

Acacia Farnesiana, state of plant when awake and asleep, 381, 382 --, appearance at night, 395 --, nyctitropic movements of pinnae, 402 --, the axes of the ellipses, 404 -- lophantha, character of first leaf, 415 -- retinoides, circumnutation of young phyllode, 236

Acanthosicyos horrida, nocturnal movement of cotyledon 304

Acanthus candelabrum, inequality in the two first leaves, 79 --, petioles not arched, 553 -- latifolius, variability in first leaves 79 -- mollis, seedling, manner of breaking through the ground, 78, 79 --, circumnutation of young leaf, 249, 269 -- spinosus, 79 --, movement of leaves, 249

Adenanthera pavonia, nyctitropic movements of leaflets, 374

Aecidium elatinum, effect on the lateral branches of the silver fir, 188

Aesculus hippocastanum, movements of radicle, 28, 29 --, sensitiveness of apex of radicle, 172-174

Albizzia lophantha, nyctitropic movements of leaflets, 383 --, of pinnae, 402

Allium cepa, conical protuberance on arched cotyledon, 59 --, circumnutation of basal half of arched cotyledon, 60 --, mode of breaking through ground, 87 --, straightening process, 101 -- porrum, movements of flower-stems, 226

Alopecurus pratensis, joints affected by apogeotropism, 503

Aloysia citriodora, circumnutation of stem, 210

Amaranthus, sleep of leaves, 387 -- caudatus, nocturnal movement of cotyledons, 307

Amorpha fruticosa, sleep of leaflets, 354

Ampelopsis tricuspidata, hyponastic movement of hooked tips, 272-275

Amphicarpoea monoica, circumnutation and nyctitropic movements of leaves, 365 --, effect of sunshine on leaflets, 445 --, geotropic movements of, 520 [page 575]

ANODA--BRASSICA

Anoda Wrightii, sleep of cotyledons, 302, 312 --, of leaves, 324 --, downward movement of cotyledons, 444

Apheliotropism, or negative heliotropism, 5, 419, 432

Apios graveolens, heliotropic movements of hypocotyl, 422-424 -- tuberosa, vertical sinking of leaflets at night, 368

Apium graveolens, sleep of cotyledons, 305 --, petroselinum, sleep of cotyledons, 304

Apogeotropic movements effected by joints or pulvini, 502

Apogeotropism, 5, 494; retarded by heliotropism, 501; concluding remarks on, 507

Arachis hypogoea, circumnutation of gynophore, 225 --, effects of radiation on leaves, 289, 296 --, movements of leaves, 357 -- rate of movement, 404 --, circumnutation of vertically dependent young gynophores, 519 --, downward movement of the same, 519

Arching of various organs, importance of, to seedling plants, 87, 88; emergence of hypocotyls or epicotyls in the form of an, 553

Asparagus officinalis, circumnutation of plumules, 60-62. --, effect of lateral light, 484

Asplenium trichomanes, movement in the fruiting fronds, 257, n.

Astragalus uliginosus, movement of leaflets, 355

Avena sativa, movement of cotyledons, 65, 66. --, sensitiveness of tip of radicle to moist air, 183 --, heliotropic movement and circumnutation of cotyledon, 421, 422 --, sensitiveness of cotyledon to a lateral light, 477 --, young sheath-like cotyledons strongly apogeotropic, 499

Avena sativa, movements of oldish cotyledons, 499, 500

Averrhoa bilimbi, leaf asleep, 330 --, angular movements when going to sleep, 331-335 --, leaflets exposed to bright sunshine, 447

Azalea Indica, circumnutation of stem, 208

B.

Bary, de, on the effect of the Aecidium on the silver fir, 188

Batalin, Prof., on the nyctitropic movements of leaves, 283; on the sleep of leaves of Sida napoea, 322; on Polygonum aviculare, 387; on the effect of sunshine on leaflets of Oxalis acetosella, 447

Bauhinia, nyctitropic movements, 373 --, movements of petioles of young seedlings, 401 --, appearance of young plants at night, 402

Beta vulgaris, circumnutation of hypocotyl of seedlings, 52 --, movements of cotyledons, 52, 53 --, effect of light, 124 --, nocturnal movement of cotyledons, 307 --, heliotropic movements of, 420 --, transmitted effect of light on hypocotyl, 482 --, apogeotropic movement of hypocotyl, 496

Bignonia capreolata, apheliotropic movement of tendrils, 432, 450

Bouché on Melaleuca ericaefolia, 383

Brassica napus, circumnutation of flower-stems, 226

Brassica oleracea, circumnutation of seedling, 10 --, of radicle, 11 --, geotropic movement of radicle, 11 [page 576]

Brassica oleracea, movement of buried and arched hypocotyl, 13, 14, 15 --, conjoint circumnutation of hypocotyl and cotyledons, 16, 17, 18 --, of hypocotyl in darkness, 19 --, of a cotyledon with hypocotyl secured to a stick, 19, 20 --, rate of movement, 20 --, ellipses described by hypocotyls when erect, 105 --, movements of cotyledons, 115 --, -- of stem, 202 --, -- of leaves at night, 229, 230 --, sleep of cotyledons, 301 --, circumnutation of hypocotyl of seedling plant, 425 --, heliotropic movement and circumnutation of hypocotyls, 426 --, effect of lateral light on hypocotyls, 479-482 --, apogeotropic movement of hypocotyls, 500, 501

Brassica rapa, movements of leaves, 230

Brongniart, A., on the sleep of Strephium floribundum, 391

Bruce, Dr., on the sleep of leaves in Averrhoa, 330

Bryophyllum (vel Calanchoe) calycinum, movement of leaves, 237

C.

Charles Darwin

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