474 



THE ANATOMY OF WOODY PLANTS 



Climate in relation to evolution of plants, 

 4i7, 423 



Coal, sectioning of, 461 



Collateral protostele, 165 



Collateral siphonostele, 165 



Collodion, 449 



Color screens, 464 



Color-sensitive plates, 463 



Companion cells in angiosperms, 118 



Comparative anatomy, canons of, 234 



Coinpositae: illustrative of general prin- 

 ciples of anatomy, 433; organization of 

 stem in, 400, 402, 404 



Compound ray, origin of, 82, 181 



Concentric bundles in monocotyledons, 

 i95 



Concentric protostele, 162 



Concentric siphonostele, 163 



Coniferales, 317; genealogical tree of, 

 355; subtribes of, 355 



Conifers, phylogeny of, 355 



Conservative organs, 238; leaf, 238; re- 

 productive axis, 238; root, 240 



Cordai tales, 305; leaf in, 203, 309; rays 

 of, 66; stem in, 306; transfusion tissue 

 of, 208, 308; transition region in, 309; 

 wood of, 15, 28, 66, 305, 308, 419 



Corrosive sublimate, 445 



Cortex, 10 



CrystaHogenous cells, 118 



Cupressineae, 339; marginal tracheids of, 

 34i 



Cupressinoxylon, 349 



Cuticle, 128 



Cycadales, 297; centripetal wood of leaf, 

 300, of cone axis, 299; supernumerary 

 zones in, 298 



Cycadofilicales, 292 



Cycas: cortical bundles in, 201; leaf 

 bundle of, 199; leaflet of, 200 



Cynara Scolymus, distribution of oil 

 canals in, 436, 439, 443 



Cystoliths, 127 



Dammar, 460 



Dandelion, root of, 435 



Depressed segments: in Aster, 405; in 



Clematis, 179; in Quercus, 180 

 Developing reagents, 468 

 Diagram of distribution of oil canals in 



artichoke, 443 



Dicotyledons: characteristics of, 375; 

 degenerate vessels of, 373, 380; modifi- 

 cations of tracheids in, 381; parenchym- 

 atous elements of, 381; phylogeny of, 

 384; wood rays of, 382 



Diffuse ray, origin of, 82, 89 



Distribution of amphivasal bundles in 

 monocotyledons, 412 



Duramen or heartwood, 56, 57, 58 



Ectokinetic sporangium, 216 



Electrical current for photomicrography, 



465 



Endarch, 23, 167 

 Endodermis, 10, n, 12 

 Endokinetic sporangium, 217 

 Ephedra, 357; rays of, 174, 358; stem of, 



i?3, 358; tracheids of, 31; wood of, 94 

 Epidermis, 126; multiple, 127; water 



tissue, 127 

 Equisetaceae, 269; course of bundles in, 



273 



Equisetales, 250, 264; stem of, 272 

 Equisetum, 269; bundles of, 270; cone of , 



274; leaf trace of, 274; medulla of, 2 72; 



primary wood of, 270; root of, 275; 



stem of, 269; types of stem in, 271 

 Erianthus, bundle of, 195 

 Ersatzfasern, 34 

 Exarch, 23, 167 



F 



Fagus, tracheids of, 32 

 Ferns, 277; root of, 150; stem of, 278 

 Fiber tracheids, 31; tylosis of, 106 

 Fibers: libriform origin of, 32; mucilagi- 

 nous, 33; septate, 34; substitute, 34 

 Filicales, 277; leaf of , 280; stem of, 278; 



root of, 20, 150 

 Fixing reagents, 445 

 Fundamental tissues, 132 

 Fusiform rays: in Cedrus, 74; in Pinus, 



etc., 69 



G 



Geinitzia, 355 

 Ginkgo: absence of parenchyma in, 424; 



alternate pitting in, 312; leaf of, 313; 



opposite pitting in, 311; secondary 



wood of, 311; sporangia and sporo- 



phylls of, 314; tangential pitting of, 



423 

 Ginkgoales, 310; relation of, to Abie- 



tineae, 337 



