580 



INDEX. 



EUPHORBIA. 



Euphorbia jacquinexflam, nycti- 

 tropie movement of leaves, 388 



F. 



Flali ault, M., on the rapture of 

 seed-coats, 102-104, K*i 



Flower-stems, eircumnutation of, 

 223-226 



Fragaria Romcea, eircumnutation 

 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, . ; on tlie 

 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 Trans versal-Helio tropis- 



mus, 419 



Fuchsia, circumnutation of stem, 

 205, 206 



Gazania ringens, circumnutation 

 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 



Richardsoni, 304 



rotundi folium, nocturnal move- 

 ment of cotyledon, 304, 312 



subcaulescens, 304 



Germinating seed, history of a, 

 548 



GYMNOSPERM8. 



Gitlago se.getnm, circumnutation ol 

 hypocotyl, 21, 108 



, burying of hypocotyl, 109 



, seedlings feebly illuminated, 



124, 128 



, sleep of cotyledon, 302 



, leaves, 321 



Glaucium lutemm, civcumnutntion 

 of young leaves, 228 



Gleditschia, sleep of leaves 308 



Glycine Uispida, vertical sinking of 

 leaflets, 366 



Glycyrrhiza, leaflets depressed at 

 night, 355 



Godlewsld, Emil, on the turge- 

 scence of the cells, 485 



Gooseberry, effect of radiation, 28t 



Gossypinm (var. Nankin cotton), 

 circumnutation of liypocolyl, 

 22 



, movement of cotyledon, 22. 23 



, sleep of leaves, 324 



arboreum (?), sleep of cotyle- 

 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 Megarrhiza Cali- 

 f arnica, 81 ; on the movements in 

 the fruiting fronds of Asplenium 

 trichoinanes, 257 ; on the Amphi- 

 carpaea monoica, 520 ; on tlio 

 Ipomcea Jalappa, 557 



Grease, effect of, on radicles and 

 their tips, 182, 185 



Gressner, Dr. II., on the cotyledons 

 of Cyclamen Persicum. 4(1. 77' 

 on hypocotyl of the same, U6 



Gymnosperms, :i-S9 



