SUBJECT INDEX 



451 



Plants— Continued. 



protein formation in, (31) 224. 

 rarer elements in, (.3S) 409. 

 ratio of tops to roots in, (31) 628. 

 regeneration, law of, (40) 224. 

 regenerative processes in, (27) 829. 

 relation — 



between phyllotaxis and stem growth i n 

 (30) 725. 



between structure and physiological char- 

 acters, (31) 32. 



to humus, (30) 122. 



nutritive elements of soil, (27) 721. 

 reaction of nutrient solution, (40) 324. 

 salt spots, (29) 422. 

 soils, (29; 212; (31) 617, 791. 

 resistance to — 



cold, (30) 333; (32) 139; (39) 525. 



hot water, (34) 843. 



injurious influences, (35) 6.36. 



insect attack, (29) 653. 



wilting, (39) 731. 

 respiration, gee Respiration, 

 response to — 



light, (40) 519. 



selective screening, (39) 825. 



stimuli, (32; 222. 

 rest period in, (28) 639; (33) 223, 520; (35) 221; 



(36) 224; (38) 640; (40) 511. 

 rest period in, shortening, (27) 220, 221; (28) 427, 



435; (35) 436. 

 resting portions, life processes in, (30) 725. 

 reversible removal of salts and bases from, (36) 



224. 

 role of— 



calcium and strontium in, (30) 523. 



catalase in, (27) 526. 



hydrocyanic acid in, (28) 128. 



magnesia in, (27; 332. 



respiration pigments in, (27) 426, 632. 



water in, (27; 531. 

 root cuttings, chimeras, and sports, (37) 434. 

 root systems of, (31) 514, 733, 8.30; (33) 526. 

 rye stalk disease affecting, (26; 546. 

 salt water, heredity in, (36) 27. 

 sand, behavior on lime soils, (31) 425. 

 sap extraction from by pressure, (39) 224. 

 seashore, as affected by water supply, (37) 27. 

 seed, of Vermont, (33) 330. 

 seedling, tin cans v. pots for, (29) 236. 

 self-protection against Cuscuta, (35) 460. 

 self-sterile, behavior in intercrosses, (37) 820. 

 self-sterile, self-fertility in, (38) 226. 

 self-sterility in, (38) 426, 823. 

 senile changes in, (35) 222. 

 sensitiveness to lime, (35) 430. 

 sex cycle, (38) 525. 

 sex development in relation to nutrition, (34) 



824. 

 sex evolution in, treatise, (32) 725. 

 sex reproduction in, (34; 526. 

 shipping to America, (32) 833. 

 shortening vegetative period of, (30) 725. 

 smoke injured, microscopic analysis, (26) 532. 

 smoke injury to, (34) 744; (37) 130. 

 sodium rer4Uirements, (28) 730. 

 solution culture experiments, technique, (40) 



817. 

 spore-bearing, hybridization in, (31) 823. 

 starch formation and plastids in, (28) 524. 

 starch formation in, (34) 627. 

 starch-yielding, (40) 339. 

 statolith apparatus in, (36) 729. 

 stem constrictions of, (31) 343. 

 sterile, producing viable seed from, (28) 837. 

 sterility and inconceptibility, (39) 632. 

 sterilization, (29) 408. 

 stimulation — 



by electricity, (28) 326, 529. 



by poisonous substances, (27) 131. 



in, (36) 525. 



treatise, (27; 331. 



with nonessential elements, (39) 730. 

 stomatal movement in, (26) 627. 

 structure terminology, (29) 665. 

 submerged land, photosynthesis in, (32) 329. 

 succulent — 



as aflected by light, (26) 430. 



automatic movements in, (35) 27. 



behavior under desiccation, (36) 327. 



Plants — Continued. 



succulent— continued. 



chemiatry of, (40) 710. 



desiccation and respiration, (40) 29, 223. 



desiccation and starvation eiperiments. 

 (34) 430. 



gas interchange, (40; 29. 



rate and course of growth, (40) 30. 



water balance, (26; 227. 

 sugar formation in absence of oxygen, (39; 732. 

 sugar translocation in, (38) 224. 

 sugar utilization, (36; 125; (39; 224. 

 susceptibility to smoke, (31) 628. 

 swelling in, as aflected by bog and swamp 



waters, (40; 520. 

 sjrmbiosis in, (29) 323. 

 symbiosis with bacteria, (26; 545. 

 synthetic processes in, (28; 127; (35) 431. 

 temperature of different parts, (28; 126; (30) 80. 

 tolerance toward — 



acidity, (39; 122. 



sodium salts, (29; 625; (40) 221. 



toxic inorganic salts, (30) 130. 

 toxic excreta, (27) 30. 

 toxins in, formation, (31) 627. 

 transmission of acquired characters in, (28) 531. 

 transpiration, see Transpiration, 

 transplanting, (32; 494. 

 transplanting lath for, (37) 836. 

 treatise, (27; 821; (29; 420. 

 tropical — 



and bacteria, symbiosis, (28) 35. 



and subtropical, treatise, (31) 235. 



bark beetles affecting, (30) 660. 



culture, (32) 45. 



culture eiperiments, (28) 142. 



guide, (28; 435, 820. 



insects affecting, (32) 340. 



periodicity in, f28; 39. 



rusts affecting, (28; 645. 



treatise, (33; 221. 

 tumors in, (36; 46. 

 twining of, (35; 431. 

 types of segregation in, (39) 123. 

 urease in, (27) 6.33. 

 useful, textbook, (33) 96. 

 utilization of— 



fertilizers and soil nutrients by, (32) 747. 



insoluble phosphates by, (26) 321; (28) 52». 



nitrates by, (35; 28. 



phosphates by, (31; 823. 



solar energy by, (31) 221. 



sulphur by, (34) 331. 

 variegated, anatomy of, (3.3; 724. 

 varieties, grouping, (28; 6-39. 

 velocity of transmission of excitation in, (34) 29, 

 water — 



absorbing power, (39) 731. 



absorption and evaporation, (40) 27. 



culture experiments, (36; 731. 



culture, new method, (33) 628. 



gas exchange in, (35; 431. 



nitrogen fixation by, (38) 419. 



relations, (30; 223; (32; 429. 



relations, biocolloid exhibiting, (40) 28. 



relations, representation, (28) 37. 



requirements, (29) 82,5; (31) 327, 729; (32> 

 127; (33) 726; (34) 521, 522; (38) 226, 228. 



transfer in, (36; 29. 



transpiration in, (27) 223; (32) 426. 

 watering experiments, (37) 325. 

 wild economic, of South Kamenin, (30) 239. 

 wild, in cookery, (35) 859. 

 wild, use as food, (33) 461. 

 wild, use as food by Indians, (35) 470. 

 wUting, (34) 728; (36) 320; (40) 427. 

 wilting — 



and incipient drying, (38) 522. 



coefficients, (26) 628; (27) 223; (28) 823^. 



drying, and returgescence, (34; 825. 



points, (35) 21. 



studies, (27; 515; (29) 523; (31) 522, 729. 

 winter botany, (39; 628. 

 winter characters, (39; 628. 

 woodland, emergence of aerial organs, (37) 525. 



anatomy, (37) 821. 

 annual growth of, (35) 841. 

 bibliography, (26) 240; (34) 435; (39) 245 

 cambial activity, (37) 127. 



