688 



INDEX. 



Corenwinder 



on absorption of carbon dioxide by 

 growing plants, 82 



on absorption of nitrates by roots, 

 127 



Cork, 19 



Cornu, on Monoblepharis, 620 



Corpusculum, 615 (Fig. 71) 



Corvisart, on conversion of starch into 

 sugar, 268 



Coumarin, 236 



Cramer 



on starch-grains in chlorophyll- 

 corpuscles, 141 ; 



on crystalloids in Floridese, 171 



Crocus, opening and closing of flowers 

 of, 404; under influence of heat, 378 



Cross, on aromatic substances, 233 



Cross-fertilisation, 646 



Crystalloid, 170, 184 



Cunningham, on effect of starvation on 

 Fungi, 218 (Fig. 30) 



Cupressineae, calcium oxalate in cell- 

 walls of, 22; reproduction of, 616 

 (Fig. 71) 



Curcumin, 239 



Curve, of daily period of growth (Fig. 

 45), 401 ; of heliotropic effect of rays 

 of different refrangibility (Fig. 50), 

 434; of nyctitropic movement of 

 Averrhoa (Fig. 58), 540; of retarding 

 effect of light on growth (Fig. 43), 395 



Curvature of organs, mechanism of, in 

 multicellular organs, 579; in uni- 

 cellular organs, 581 



Cuscuta, formation of haustoria of, 411 ; 

 positive heliotropism of stem of, 517; 

 sensitiveness of climbing stem of, 



49 1 * 5" 

 Cuticle, 17, 1 8 

 Cuticular transpiration, 107 

 Cutin, 19 



Cutleria, reproduction of, 609 

 Cuttings, reproduction by, 598, 662 

 Cyanophycere, reproduction of, 604 

 Cynareoe, irritable stamens of, 545, 559, 



568 



Cystocarp, 614 

 Cystolith, 22; (Fig. 6), 15; (Fig. 34), 



249 



Cytinu Adami (graft hybrid), 651 

 Cytoplasm, 658 

 Cystoseira barbata, extrusion of polar 



body in, 641 



Daily periodic movements of leaves, 539 

 Daily periodicity, of growth (Fig. 45), 

 356; 401, 408; of root-pressure, 95, 

 407; of tension of tissues, 405, 543 

 Daily variation in bulk, 408 



Darkness, effect of, on growth of leaves, 



380; of stems, 380, 385 (Fig. 42) 

 Darlingtonia, pitcher of, 247 

 Darwin, C. 



on absorption of carbon com- 

 pounds by leaves, 124 



on advantages of cross-fertilisation, 

 649 



on aggregation, 564 



on circumnutation, 363 



on crosses, 650 



on development of adhesive discs 

 of tendrils, 411 



on diageotropisin, 463 



on diaheliotropism, 449 



on graft-hybrids, 651 



on heterostyled plants, 648 



on insectivorous plants, 547 



on localisation of geotropic irrita- 

 bility, 467 



on localisation of heliotropic irrita- 

 bility, 438 



on localisation of hydrotropic irrita- 

 bility, 479 



on nyctitropic movements (Figs. 

 58, 60), 539 



on pangenesis, 653 



on paraheliotropism, 551 



on sensitiveness of roots to contact, 

 492 



on significance of nyctitropic move- 

 ments, 593 



on twining of climbing stems, 508 



on twining of tendrils, 484 



on transmission of varietal charac- 

 ters, 652 



on variation, 675 

 Darwin, F. 



on aggregation, 564 



on diaheliotropism of leaves, 448 



on geotropism of decapitated roots, 

 468 



on growth in darkness of negatively 

 heliotropic organs, 440 

 Darwinian curvature, 492 

 Dasycladus, reproduction of, 608 

 Davy, on use of silicon in plants, 137 

 Death, cause of, from high temperatures, 



283 



Detrain- 

 on absorption of oxygen by roots, 78 



on absorption of oxygen by plants, 

 197 



on decomposition of carbon dioxide 

 in artificial light, 258 



on evolution of carbon dioxide by 

 plants, 199, 207, 276 



on gaseous interchange during ger- 

 mination, 206 

 Derivative hybrids, 651 



