MANUAL OP BOTANY 



CHAPTER XI. 



The Respiration of Plants , 



The absorption of oxygen by the plant 



The nature of respiration 



Relation of respiration to catabolism 



TAG K 



465 



465 

 466 

 469 



CHAPTER XU. 

 Gbowth . 



Nature of growth .... 

 Distribution of growth . 

 Growth of a cell . • . 



Grand period of growth 

 Growth of a multicellular organ 

 Variations of turgidity during growth 

 Hyponasty and epinasty . 

 Nutation and circumnutation 

 Tensions set up by growth 



470 



471 

 472 

 472 

 474 

 474 

 475 

 475 

 476 

 477 



CHAPTER XIII. 



Influence of the Envieonment on Plants . . 478 



Peculiarities of aquatic phanerogams . . . . 478 



xerophilous plants .... . 480 



Alpine plants . .... 480 



epiphytes . . . . . 481 



parasites ... . . 482 



insectivorous plants . . ... 48.S 



CHAPTER XIV. 



The Relation op the Plant to its Envieonment — 



Ihritability . . . 484 



Conditions under which irritability is manifested . . . . 484 



Phototonus ... ... . 484 



Relation of plants to light . .... 435 



Paraheliotropism ... ..... 486 



Epistrophe and apostrophe . . . . 437 



Nyctitropic movements . . . 48;) 



Relation of plants to temperature 49O 



