580 



INDEX. 



EUPHORBIA. 



Euphorbia jacqaineseflora, nycti- 

 tropio movement of leaves, 388 



Flaliault, M., on the rupture of 

 seed-coats, 102-104:, 106 



Flower-stems, circumautation of, 

 2<;3-226 



Fragaria Roxaeea, circuranutation 

 of stolon, 214-218 



Fiant, Dr. A. B., Ihe terms Helio- 

 tropism and Geotropism, first 

 used by him, 5, n. ; radicles acted 

 on by geotropism, 70. ».; on tlie 

 stolons of Fragaria, 215; periodic 

 and nyotitropio movements of 

 leaves, 284; on the root-leaves 

 of plants kept in darknes-s, 443 ; 

 on pulvini, 485 ; on natural 

 selection in cnnnectiiin with 

 geotropism, lieliotropism, &e., 

 570 



, on Transversal- Heliotropis- 



raus, 419 



Fuchsia, oircunmut'.ition of stem, 

 205, 20G 



It. 



Gazania ringens, circumnutation 

 of stem, 208 



Genera oontaininj; sleeping plants, 

 320, 321 



Geotropism, 5; eifeft of, on the 

 primary radicle, 19G ; the niverse 

 of apogeotropism, 512 ; effect on 

 the tips of radicles, 543 



Geranium cineream, 304 



Endressii, 304 



Iberiou/m, nocturnal movement 



of cotyledons, 298 



-^— Biehardsmii, 304 



rotendi/oZiwn, nocturnal move- 

 ment of cotyledon, 304, 312 



mhcavlescens, 304 



Germinating seuil, liietory of a, 

 548 



OyMNOSPEIiMS. 



Githago segetum, circumnutation of 

 hypocotyl, 21. 108 



, burying of liypncntyl, 109 



, seedlings feelily illuminated, 



124, 128 



, sleep of cotyledon, 302 



, leaves, 321 



Glaueium luteum, circumnutation 

 of young leaves, 228 



GleditscMa, sleep of leaves. 3C8 



Glycine hispida, vertical sinking of 

 It-aflets, 366 



Glycyrrhiza, leaflets depressed at 

 night, 355 



Godiewskl, Emil, on the turge- 

 scence of the cells, 485 



Gooseberry, effect of radiation, 284 



Gosirypium (vnr. Nankin cotton), 

 circumnutation of hypocotyl, 

 22 



, movement of cotyledon, 22, 23 



, sleep of leaves, 324 



arboreum (?), sleep of ootyle 



dons, 303 



Sraziliense, nocturnal move- 

 ment of leaves, 324 



, sleep of cotyledons, 303 



Jierbacenm, sen-sitiveness of 



apex of radicle, 1 68 



, radicles cauterised trans- 

 versely, 537 



■ maritimum, nocturnal move- 

 ment of leaves, 324 



Griivitation, niovenjcnts excited bv, 

 !567 



Gray, Asa, on Delphinium nudi- 

 caule, 80 ; on Megarrhiza Ciili- 

 fornica, 81 ; on the movements in 

 the fruiting fromls of Asplenium 

 Irichomanes, 257 ; on the Amphl- 

 earpwa mnnoica, 520 ; on the 

 Ipomcea Jalappa, 557 



Grease, effect of, on radicles and 

 their tips, 182, 185 



Gressner, Dr. H., on the cotyledons 

 of Gyelamen Persicum, 46, 77 ' 

 on hypocotyl of the same, 96 



Gymnosperms, 389 



