INDEX. 



581 



EASEBLANUT. 



H. 



Haberlandt, Dr., on the protube- 

 rance on the hypoootyl of Allium, 

 59 ; the importauoe of the arch 

 to seedling plants, 87 ; sub- 

 aerial and subterranean cotyle- 

 dons, 110, n. ; the arched hypo- 

 cotyl, 554 



B.3emati,xylon Campediianum. noc- 

 turnal movement of leaves, 3t^8, 

 3B9 



Utd'ra helix, circumnutatioii of 

 stem, 207 



Hedysarum eoronfirium, nocturnal 

 movements of leaves, 356 



Belianthemwm proslratum, geotro- 

 pio movement of flower-heada, 

 518 



Helianlhus annuus, circumnutation 

 of hypocotyl, 45 



, arching of hypocotyl, 90 



, nocturnal movement of coty- 

 ledons, 305 



Heliotropism, 5 ; uses of, 449 ; a 

 modified form of circumnutation, 

 491) 



Uelleborus niger, mode of breaking 

 through the ground, 86 



Heiisen, Prof, on roots in worm- 

 burrows, 72 



Flenslow, Kev. G., on the coty- 

 ledons of i halarii Canariensis, 

 62 



Hofmeister, on the curious move- 

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

 tlie leaves of Piistia straiiides, 

 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 Sarracenia, 

 450 



Hypoootyl, 5 ; manner of break- 

 ing through the ground, 77 ; 

 emerges under the form of an 

 arch, 553 



Hypocotyls and Epicotyls, ciicum- 



nutation and other movemeuta 

 when arched.98; power of straight- 

 ening themselves, 100; rupture 

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

 tratiou of, 106 ; circumnutation 

 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 



Imalophyllum vel Clioia (sp. ?), 

 movement of leaves, 255 



Indigofera tincloria, leaflets de- 

 pressed at night, 354 



Inheiitance in plants, 407, 491 



Insectivorous and climbing plants 

 not heliotiopic, 450; influence of 

 light on, 488 



Ipomoea bona nox, arching of hypo- 

 cotyl, 90 



, nocturnal position of cotv- 



ledons, 306, 312 



cosrulea vul I'liarbitis nil, 



ciicumnntation of seedliigs, 

 47 



, movement of cotvledons, 47- 



49, 109 



, nncturnal movements of coty- 



JeJons, 305 



, sleep of leaves, 386 



, sensitiveness to light. 451 



, the bypocotj'ledonous steins 



heliotropic, 453 



, coccinea, position of coty- 

 ledons at night, 306, 312 



~. leptophylla, mode of bre.iking 



through tie 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 



