580 



INDEX. 



EUPHORBIA. 



Euphorbia jacquineze flora, nycti- 

 tiopic movement of leaves, 388 



F. 



of 



Flaliault, M., on the rupture 

 seed-coats, 102-104," 106 



Flower-stems, circumnutation of, 

 223-226 



Fragaria Rosacea, circumnutation 

 of stolon, 214-218 



Frank, Dr. A. B., the terms Helio- 

 tropism and Geotropism, first 

 used by him, 5, n. ; radicles acted 

 on by geotropism, 70, n. ; on the 

 stolons of Fragaria, 215; periodic 

 and nyctitropic movements of 

 leaves, 284; on the root-leaves 

 of plants kept in darkness, 443 ; 

 on pulvini, 485 ; on natural 

 selection in connection with 

 geotropism, heliotropism, &c., 

 570 



, on Transversal- Heliotropis- 



rnus, 419 



Fuchsia, circumnutation of stem, 

 205, 206 



G. 



circumnutation 



Gazania ringens, 

 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 



Endressii, 304 



Ibericum, nocturnal movement 



of cotyledons, 298 



Ricliardsoni, 304 



rotuudifolium, nocturnal move- 

 ment of cotyledon, 304, 312 



subcaulescens, 304 



Germinating seed, history of a, 

 548 



GYMNOSFERMS. 



Gitliago segetnm, circumnutatiou of 



hypocotyl, 21, 108 



, burying of hypocotyl, 109 



, seedlings feebly illuminated, 



124, 128 



, sleep of cotyledon, "02 



, leaves, 321 



Glaucinm luteum, circumnutation 



of young leaves, 228 

 Gleditschia, sleep of leaves 3-'5S 

 Gli/cine hispida, vertical si iking of 



haflets, 3G6 

 Glycyrrhizn, leaflets depressed at 



night, 355 

 Godlewskl, Emil, on the turge- 



scence of the cells, 485 

 Gooseberry, effect of radiation, 284 

 Gossypium (var. Nankin cotton), 



circumnutation of hypocotyl, 



22 



, movement of cotyledon, 22. 23 



, sleep of leaves, 324 



arboreum (?), sleep of cotylo- 



dons, 303 



Braziliense, nocturnal move- 

 ment of leaves, 324 



, sleep of cotyledons, 303 



herbaceum, sensitiveness of 



apex of radicle, 168 



, radicles cauterised trans- 

 versely, 537 



maritimum, nocturnal move- 

 ment of leaves, 324 



Gravitation, movements excited by, 

 567 



Gray, Asa, on Delphinium nudi- 

 caule, 80 ; on Megarrkiza Cali- 

 fornica, 8.1 ; on the movements in 

 the fruiting fronts of Asplenium 

 tricho manes, 257 ; on the Amphi- 

 carpcea monoica, 520 ; on the 

 Ipomoea Jalappa, 557 



Grease, effect of, on radicles and 

 their tips, 182, 185 



Gressner, Dr. H., on the cotyledons 

 of Cyclamen Persicum, 46, 77 ; 

 on hypocotyl of the same, 96 



Gymnosperms, 389 



