582 



INDEX. 



Ipomoea pandurafa, n anner of ger- 

 mination, 81, 557 



purpurea (vel Fharbitis his- 



pida), noetiiTnnl iDovement of 

 cotyledons, 305, 312 



, sleep of leaves, 386 



, sensitiveness to light, 451 



, the hypocotyledouous stems 



heliotropio, 453 



Iris pseuiio-acorus, ciroumnutatlon 

 of leaves, 253 



Irmisch, on cotyledons of Ranun- 

 culus Ficaria, 96 



Tvy, its stems heliotropic, 451 



Kcrner on the bending down of pe- 

 duncles, 414 



H.Iinostat, the, an instrument de- 

 vised by Sachs to eliminate geo- 

 tropism, 93 



Kraus, Dr. Oarl, on tlie underground 

 shoots of Tritioum repens, 189; 

 on Cannabis sativa, 250, 307, 

 312 ; on the movements of leaves, 

 318 



Lactuca scariola, sleep of cotyle- 

 dons, 305 



Lagenaria vulgaris, circumnutation 

 of seedlings, 42 



, of cotyledons, 43 



, cotyledons vertical at night, 



304 



Lathrasa squamaria, mode of 

 breaking through the ground, 

 85 



, quantity of wa(er secreted, 



85, 86, n. 



La&yrus nissolia, circumnuta- 

 tion of stem of young seedling, 

 oA 



, ellipses described by, 107, 



108 



Leaves, circumnutation of, 226- 



2G2 ; dicotyledons, 226-252 ; mo 

 nocotyledons, 252-257 ; nyotitro- 

 pism of, 280 ; their temperature af- 

 fected by their position at night, 

 294 ; nyctitropic or sleep move- 

 ments, 315, 394 ; periodicity of 

 their movements inherited, 407; 

 embryology of, 414 ; so-called 

 diurnal sleep, 445 



Leguminosie, sleep of cotyledons, 

 808 ; sleeping species, 340 



Le Maout and Deoaisne, 67 



Lepidium sativum, sleep of cotyle- 

 dons, 302 



Light, movements excited by 41R, 

 563 ; influence on most vegetable 

 tissues, 486 ; acts on plant as on 

 the nervous system of animals, 

 487 



Lilium auratum, ciicumnutation of 

 stem, 212 



, apogeotropio movement of 



stem, 498, 499 



Linnaeus, ' Somnus Plantarum,' 

 280; on plants sleeping, 320; 

 on the leaves of Sida aJndilon, 

 3li; on Qinothera mollissima, 

 383 



Linum Berendieri, nocturnal move- 

 ment of cotyledons, 298 



usitatissimum, circumnutation 



of stem, 203 



Lolium perenne, joints affected by 

 apogeotropisra, 502 



Lonicera brachypoda, hooking of the 

 tip, 272 



, sensitiveness to light, 453 



Loomis, Mr., on the movements in 

 the fruiting fronds of Asplenium 

 trichomanes, 257 



Lotus aristata, effect of radiation 

 on leaves, 292 



Oreticus, leaves awake and 



asleep, 354 



Gebelii, nocturnal movement 



of cotyledons, 308 



, leaflets provided with pulvini, 



353 



Jacobseus, movements of coty- 

 ledons, 35, 109 



, pulvini of, 115 



