756 PLANT RESPONSE 



Anisotropic organs : 



28. Inorganic response of compound strip 



29. Response of plagiotropic stem of Cucurbila 



30. Response of plagiotropic stem of Convolvulus 



31. Response by collapse of bifurcated Allium peduncle 



32. Response by uncurling of Passijlora tendril 



33. Response of spirally cut Allium peduncle by uncurling 



34. Writhing response of spiral tendril of Passijlora 



Longitudinal Mechanical Response 



35. Response of stem of Cuscuta .... 



36. Response of root of Bindweed ..... 



37. Response of style of Datura alba .... 



38. Response of coronal filament of Passijlora . 



39. Effect of age on excitatory contraction . 



40. Effect of season on responsive contraction . 



13 



86 

 87 

 89 

 91 



92 



76 

 77 

 7* 

 7* 

 79 

 80 



Electric Response 



41. Response to direct stimulation ....... 32 



42. Response to transmitted direct stimulation . . . . . . 34 



43. Indirect hydrostatic and true excitatory response .... 37 



44. Electric test of differential excitability . . . . . . 38 



45. Response to moderate stimulation of tip of growing organ . 517 



46. Response to strong stimulation of tip . . . . 517,518 



47. Response to direct stimulation of growing region . . . .518 



48. Response to moderate transverse stimulation 519 



49. Response to strong transverse stimulation . . . 519, 522 



Electro tactile Response 



50. Electrotactile response in Mimosa stem . . . . . . 260 



Death-response 



51. Determination of death-point by electrical method 



52. Determination of death-point by spasmodic lateral response 



53. Determination of death-point by spasmodic movement of uncurling 



54. Determination of death-point by sudden volumetric contraction 



55. Determination of death-point from critical point of thermo-mechanical 



inversion .......... 



56. Constancy of critical point of inversion ..... 



57. Modification of thermo-mechanical curve showing effect of age . 



58. Thermo-mechanical curve of Mimosa ..... 



59. Duplication of rigor-point in Afimosa by chemical agents 



60. Translocation of death-point by unfavourable weather . .17 



61. Translocation of death-point by poisonous solution . 



62. Translocation of death-point by fatigue ..... 



149 

 150 

 155 

 156 



168 

 169 

 170 

 172 

 179 

 176 

 180 

 185 



