INDEX 



Closing of flowers, 871, 872, 873. 



Clover, root tubercles, 788. 



Coat, seed, gos^ 907, 909, prj, 932. 



Cobaea, tendrils, 652. 



Cocain, 626. 



Cocklebur, fruit, 024; fruit section, Q32. 



Codiaeum, pollen, 831, 



Coenocyte, 520, 697, 750. 



Coleus, epidermis, S7i; flowers, 82g, 846- 



Collateral bundles, 683. 



CoUenchyma, 6g7, 6gg. 



Colony, rbizome, 671. 



Color, 527, 528, 708, 845, 847, 898, 925. 



Columella, 811. 



Columnar strength, 704. 



Commensal; commensalism, 752, 753. 



Companion cells, 681, 682. 



Compass plants, $47- 



Competition, 487. 



Complementary tissue, 661. 



Compositae, flowers, 856, 862. 



Compound bundles, 682 ; leaves, 544, 546, 

 550, 60s, 652, 676, 783. 



Compression strength, 704. 



Concentric bundles, 683. 



Conduction of carbohydrates, 694. 



Conductive bundles, 530, S3^, 533^ 534- 536, 

 581, 617, 621, 680, 682, 683, 684, 686, 

 687, 688, 69s, 701, 702, 703; elements, 

 67g, 680, 681; parenchyma, 682; tissue, 

 513, 551, 630, 638, 63g, 678, 67g, 680, 

 681, 682, 683, 684, 685, 686, 687, 688, 

 689, 6go, 692, 693, 76g. 



Conduplicate vernation, 937. 



Cone, fruit, g38; tree, 648. 



Congenital structures, 951. 



Conidia, 811. 



Conifers, 648. 



Connective, 840. 



Contact pollination, 862. 



Contraction, root, 504, 505. 



Convoluta, 803. 



Convolute vernation, 937. 



Cord grass, rhizomes, 66g. 



Cork, 661, 70s, 706, 707; cambium, 661, 

 70s; cortex, 70s; wound, 707. 



Corm, 67s, 676. 



Cornus, stem, 730. 



Corolla, 731, 82s, 826, 828, 82g, 83s, 840, 

 841, 846, 854, 8S7, S59, 87s. 



Corona, go2. 



Correlation, 486, 509, 747. 



Cortex, 76g, 782; cork, 705. 



Coiylus, flowers, 834. 



Corymb, 828, 846. 



Cosmopolitan plants, 927. 



Cottonwood, absciss layer, 5*3; twigs, 

 736^ 



Cotyledon (plant), leaf section, fep. 



Cotyledon (seed leaf), 4gi, 601, gas, go6, 



935, 936. 

 Crab apple, spines, 73g. 

 Crataegus, 655; root propagation, 50 j ; 



spines, 73g. 

 Creation, special, 947. 

 Creeping stems, so't ^7^- ^73' 

 Creosote bush, roots, 50(5. 

 Cross pollination, 829, 836, 852, 854, 8S9, 



866, 867. 

 Croton, pollen, 831. 

 Crown, go2. 

 Crustose lichens, 615. 

 Crumpled vernation, 937. 

 Crystal aggregates, 625; sand, 625. 

 Crystals, 62s, 723; protein, 912, 915. 

 Cucumber, tendrils, 6s2. 

 Cup, acorn, 92s- 

 Cuphea, pollen, 831. 

 Cupule, 808. 

 Currant, leaf veins, 639, 

 Cuscuta, habit, 768; haustoria, 769. 

 Cushion plants, 611, 738. 

 Cuticle, S32, 535, 55S, 567, 568, 569, 570, 



623, 63g, 642, 6g7. 

 Cuticular layer, s68 ; transpiration, 564. 

 Cutin; cutinization, 557, 568, 569. 

 Cuttings, propagation by, 637. 

 Cyanic colors, 845. 

 Cydanthera, tendril sections, 699. 

 Cycloloma, 922. 

 Cyme, 82s, 828, 829. 

 Cynara, bud, 642. 

 Cynipid galls, 782. 



Cypress knees, 507, 308, 509 ; swamp, S08. 

 Cystolith, 626. 



Dandelion, flower, 8s7 ; inflorescence move- 

 ments, 872; roots and stems, 677; varia- 

 tion, S99: 



Date, seedling, 933. 



Dead tissues, advantage, 693. 



Death, 587, 910. 



Deciduous herbs, 712, 713; trees, 583, 584, 

 649, 7 ID. 



Decussate phyllotaxy, S42, S43, 549, 641, 

 647. 



Dehiscence, anthers, 829, 830; fruits, 919, 

 g2o. 



Delayed germination, 932. 



Deliquescent trees, 3^4, 649, 650. 



Dependent plants, 752. 



Desert plants, soS, 63s, 944 (see also 

 Xerophytes). 



Desiccation, 587, 700. 



Determinate inflorescence, 823, 828. 



Determinative factors, 931. 



Dextrorse twiners, 632. 



Dextrose, 914. 



