144 



INDEX 



Bullifonn cells, in leaf epidermis 



of Zea, 127 

 Buttercup, study of root of, 134- 



136 



CALAMOVILFA, ontogeny of 



tracheae in, 85 

 Calcium oxalate, in crystals, 4-5 

 Callus, definitive, 97 



cylinders, in sieve-plates, 97 

 Calyptrogen, jjroduces root cap, 



26 

 Cambial activity, effects on pri- 

 mary tissues, 106-107 

 initials, 27-28, 106 

 wall, use of term, 9-10 

 zone, use of term, 106 

 Cambium (see also vascular or 

 cork cambium) 

 characteristics of, 86-87 

 origin and activity of in roots, 

 133-134 

 Camellia, astrosclereides in leaf 



of, 71 

 Carrot, chromoplasts of, 3 

 Cariia, astrosclereides of, 70-71 

 Casparian strips, of endodermis 



of root, 134-135 

 Cedriis, structure of shoot ajiex, 



25 

 Celery, structure and ontogeny of 

 eoUenchyma, 63-64 

 vessel development in, 84 

 Cell, application of term, 2 

 ergastic substances in, 4-6 

 Hooke's use of term, 1 

 modern use of term, 1 

 jilastids of, 3 

 ])rotopIast of, 1-6 

 plate, relation to intercellular 



layer, 9 

 saj"), in hail- cells, 2 

 theory, 1 



types, tabulated sununary of, 

 40-43 



Cell wall, absence in certain 

 cells, 7 

 criteria for layers of, 9 

 gross layers of, 8-11 

 in sieve-tube elements, 97-98 

 reversible changes in, 10 

 use in classifying cell types, 7 

 Cellulose, in secondary wall, 10, 75 

 Chlorojilasts, in guard cells, 47 

 in leaf cells of Elodea, 3 

 in mesophyll of leaf, 125 

 of Pellionia, 4 

 Chromoplasts, in Da tic us, 3 



obscure role of, 3 

 Closing layers, of lenticels, 108 

 Coenocytes, relation to "Cell 



Theory," 1 

 Collateral vascular bundle, in corn 



stem, 118 

 Collenchyma, air spaces in, 64 

 functions of, 62, 64 

 material for study of, 64-65 

 occurrence of, 62 

 ontogeny of, 63-64 

 regressive differentiation of, 62 

 shape of cells in, 62 

 structure and composition of 



walls of, 62-63 

 types of wall-thickening of, 62- 



63 

 use of term, 62 

 Colleters, structure and occurrence 



of, 52-53 

 Companion cells, in ])hIo(Mii of 

 Ci(ci(rhif(i, 9!) 

 origin aiul sti'ucfui'e of, 93 

 Comi)lementarv tisssue, of lenti- 

 cels, 108 

 Composite cylinder, fornialion of 



by selereides, 68-69, 120 

 Coiii])onnd middle lamella, studv 

 of, 11 

 use of term, 10 

 sieve-plate, use of term, 96 

 Cork (see also 2)liclleiii) 



