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Show 580 INDEX. EUPHORBIA. Euphm·bia jacquinemflora, nyctitropic movement of leaves, 388 F. Flahault, M., on the rupture of seed-coats, 102-104, 106 Flower-stems, circumnutation of, 223- 226 F1·agaria Rosacea, circumnutation of stolon, 214-218 Frank, Dr. A. B., the t erms Heliotropism and Geotropism, first used by him, 5, n. ; r::tdiclcs acted on by geotropism, 70. n.; on the stolons of Fraga1·ia, 215 ; periodic and nyctitropic movements of leaves, 284; on the root-leaves of plants kept in darkness, 44S ; on pulvini, 485; on natural selection in connection with geotropism, heliotropism, &c., 570 --, on Transversal-Heliotropismus, 419 Fuchsia, eircumnutation of stem, 205, 206 G. Gazania ringens, circumnutation of stem, 208 Genera containing sleeping plants, 320,321 Geotropism, 5 ; effect of, on the primary radicle, 196 ; the reverse of apogeotropism, 512: effect on the tips of radicles, 543 Geranium cinereum, 304: -- End1·essii, 304 -- lbericum, nocturnal movement of cotyledons, 298 -- Richardsoni, 30! -- 1·otundijolium, nocturnal move-ment of cotyledon, 304, 312 -- subcaulescens, 304 Germinating seed, history of a, 54:8 GYMNOSPERMS. G·ithago segetum, circumnutntiou of hypocotyl, 21, 108 --, burying of hypocotyl, lOfl --, seedlings feebly illuminated 124, 128 , --,sleep of cotyledon, 302 --, --- len vcs, 321 Glaucinm lttteum, circumnutntion of young leaves, 228 GleditscMa, sleep of leaves, 3G8 Glycine hispiila, vertical sinking of h,uflets, 366 Glycyn·hiza, leaflets depressed nt night, 355 Godlewski, Emil, on the turcre. scence of the cells, 485 " Gooseberry, effect of radiation, 284 Gossypium (vnr. Nankin cotton), circumnutation of hypocotyl, 22 --, movement of cotyledon, 22, 23 --, sleep of leaves, 324 -- arborettm (?), sleep of cotyle-dons, 303 -- Braziliense, nocturual mt)Vement of lP-avcs, 324· --,sleep of cotyledons, 303 -- heTbaceurn, sensitiveness of apex of radicle, 168 --, radiclcs cauterised tmnsvcrsely, 537 -- maritimum, nocturnal movement of leaves, 324 Gravitation, movements excited by, 567 Gray, Asa, on Delpldninm nndicanle, 80 ; on Megarrhiza Ca~ifontica, 81 ; on the movements m tLe fruiting fronds of Asplenium irichomanes, 257; on the Amphica1 ·prea monoica, 520 ; on the Ipomrea ,Jalappa, 557 Grease, effect ot: on mdiclcs and their tips, 182, 185 Grossner, Dr. H., on tho cotyledons of Cyclamen Persicum, 46, 77; on hypocotyl of the same, 9G Gymnosperms, 38D INDEX. 581 HADERLANDT, H. Haberlandt, Dr., on the protuberance on the hypocotyl of Allium, 59; the importance of tho areh to seedling plants, 87 ; subaerial nnd subterranean cot.ylodons, 110, n.; tho n.rchcd hypocotyl, 55± HtelllattJxylon Oa.mpecllianum, nocturnal movement of leaves, 368, 369 Hedtra helix, cil'cumnutat.ion of stem, 207 Hedysa1·um coronarium, nocturnal movements of leaves, 356 Heliardhemum prost1·aturn, geotropic movement of fluwor-heads, 518 He!ianthus ttnnuus, circumnutation of hypocoty 1, 45 -,arching of hypocotyl, 90 -, nocturnal movement of coty-ledons, 305 Heliotropism, 5 ; uses of, 449 ; a modified form of circumnutation, 490 Helleborus niger, mode of breaking throug!J tho ground, 86 Hensen, Prof., on roots in wormburrows, 72 Henslow, Rev. G., on the cotyledons of J!halaris Oana1·iensis, 62 Hofmeister, on the curious movement of Spirogyra, 3, 259, n. ; of the leaves of Pistia stratiotes, 255; of cotyledons at night, 297; of petals, 414 - and Batalin on the movements of the cabbage, 229 Hooker, Sir J., on the effect of light on the pitchers of Sar1·acenia, 450 Hypocotyl, 5; manner of brenking through the ground, 77 ; emerges under the form of an arch, 553 Hypocotyls und Epicotyls, circum· IPOMCEA. nutation and other movements w~cn arched,D8; power of slraigbtcnmg thomsclvo:;, 100; rupture of tho seed-cortts, 10~-106; illustl ·ation of, 106 ; circumnutation when erect, 107; when in dark 108 ' Hyponasty, 6, 267 I. lbe1·is ttmbellata, movement of stem, '202. IllumiMtion, effect of, on the sleep of leaves, ~98 Imatophyllum vel OU·via (sp. ?), movement of leaves, 255 Indigofem tinctoria, leaflets depro:; secl at night, 351 Inherito.nco in plants, 407, 491 Insocti vorous and climbing plants 110t heliotropic, -150 ; iuiluencc of light on, 488 Ipomwa bona nox, arching of hypocotyl, 90 --, nocturnal position of cotyledons, 306, 312 -- cremlec~ vel Phm·bitis nil, circumnutation of seedliugs, 47 --, movement of cotyledons, 47- 49, 109 --,nocturnal movements of coty-ledons, 305 --, sleep of leaves, 386 --, sensitiveness to light, 451 --, the bypocotyledonous stems heliotropic, 45::1 --, coccinec~, position of coty· leLions at night, aOG, 312 -- leptophylla, mode of breaking through tho ground, 83, 84 --, arching of the petioles of the cotyledons, 90 --, difference in sensitiveness to gravitation in different parts, 509 --, extraordinary manner of germination, 557 |