INDEX. 



581 



HABERLANDT. 



H. 



Haberlandt, Dr., on the protube- 

 rance on the hypocotylof Allium, 

 59 ; the importance of the arch 

 to seedling plants, 87 ; sub- 

 aerial and subterranean cotyle- 

 dons, 110, n. ; the arched hypo- 

 cotyl, 554 



HiBniuti.xylon Campeclianum, noc- 

 turnal movement of leaves, 368, 

 3(J9 



Hedrra helix, circumnutatiou of 

 stem, 207 



Hedysarum coronarium, nocturnal 

 movements of leaves, 356 



Helianthemum prostratum, geotro- 

 pic movement of flower-heads, 

 518 



Hebanihus annuus, circumnutation 

 of hypocotyl, 45 



, arching of hypot-otyl, 90 



, nocturnal movement of coty- 

 ledons, 305 



Heliotropism, 5 ; uses of, 449 ; a 

 modified form of circumnutation, 

 490 



SeUtiborus niger, mode of breaking 

 through the ground, 86 



Hensen, Prof., on roots in worm- 

 burrows, 72 



Henslow, Kev. G., on the coty- 

 ledons of thalaris Canariensis. 

 62 



Hofmeister, on the curious move- 

 ment of Spirogyrn, 3, 259, n. ; of 

 the leaves ot Pistia utrutiotes, 

 255 ; of cotyledons at night, 297 ; 

 of petals, 414 



and B*talin on the movements 



of the cabbage, 229 



Hooker, Sir J., on the effect of light 

 on the pitchers of Sarracenia, 

 450 



Hypocotyl, 5 ; manner of break- 

 ing through the ground, 77 ; 

 emerges under the form of an 

 arch, 553 



Hypocotyls and Epicotyls, circum- 



IPOMOJA. 



nutation and other movements 

 when arched,9S; power of straight- 

 ening themselves, 100; rupture 

 of the seed-coats, 102-106 ; illus- 

 tration of, 106; circuninut.tiion 

 when erect, 107; when in dark, 

 108 

 Hyponasty, 6, 267 



I. 



Iberis umbellata, movement of stem, 

 202. 



Illumination, effect of, on the sleep 

 of leaves, 398 



Imatophyllum vel Clivia (sp. ?), 

 movement of leaves, 255 



Indigofera tinctoria, leaflets de- 

 pressed at night, 354 



Inheritance in plants, 407, 491 



Insectivorous and climbing plants 

 not heliotiopic, 450 ; influence of 

 light on, 488 



Ipomaea bona nox, arching of hypo- 

 cotyl, 90 



, nocturnal position of coty- 

 ledons, 306, 312 



ccerulea vel Fharbitis nil, 



circumnutation of seedli.igs, 



, movement of cotyledons 47 



49, 109 



, nocturnal movements of coty- 

 ledons, 305 



, sleep of leaves, 386 



, sensitiveness to light, 451 



, the hypocotyledonous stems 



heliotropic, 453 



, coccinea, position of coty- 

 ledons at night, 306, 312 



leptophylla, mode of breaking 



through tt.e ground, 83, 84 



, arching of the petioles of the 



cotyledons, 90 



, difference in sensitiveness to 



gravitation in different parts, 

 509 



, extraordinary manner of ger- 

 mination, 557 



