968 
INDEX. 
Datura, i6i, 6i6. 
Daucus, 493. 
Davallieae, 442. 
Decussate, 189, 198. 
Dedoublement, 549,605,645. 
Definite inflorescence, 596. 
Degradation of chlorophyll, 
47. 
Degradation-products, 705. 
Dehiscent fruits, 615. 
Delesseria, 289. 
Delphinium, 578, 579, 608. 
Dentaria, 640. 
Deposits in the cell-wall, 36. 
Derivative hybrid, 919. 
Dermatogen, 147, 500, 590, 
591, 592, 952 (Figs. 114, 
122, 125). 
Descent, Theory of, 940. 
Desmanthus, 883. 
Desmidiese, 252, 258, 260. 
Desmodium, 757, 881, 884. 
Deutzia, 36. 
Development of Sexuality, 
901. 
Development of the mem- 
bers of a branch-system, 
176. 
Diageotropism, 854. 
Diagonal plane, 600. 
Diagram of Shoot, 188, 189, 
191, 192, 193, 194, 196 
(Figs. 146, 148, 149, 150, 
151, 152, 153). 
Diagrams, Floral, 601 (Figs. 
147, 406-414). 
Development of Varieties, 
928. 
Diaheliotropism, 854. 
Dialypetalae, 659. 
Diandrse, 658. 
Dianthus, 540, 917. 
Diastase, 708. 
Diatomaceae, 47, 244, 252, 
260, 956. 
Diatomine, 260. 
Diatoms, 36, 260. 
Dicentra, 604. 
Dichasium, 179, 597 (Fig. 
.135)- 
Dichogamy, 906. 
Dichotomese, 391, 460. 
Dichotomy, 169, 177, 178, 
- 460 (Figs. 133, 134, 137, 
138). 
Diclinous, 490, 500, 907. 
Dicotyledons, 13, 14, 129 
133, 486, 498, 555, 590, 
633. 
Dictamnus, 92, 175, 563, 601, 
605, 856 (Figs. 76, 77, 131, 
388, 389, 414, 485). 
Dictyostelium, 262. 
Dictyota, 177 (Fig. 133). 
Dictyoteae, 283, 956. 
Dicyclic, 601. 
Didymium, 262 (Fig. 172). 
Differentiation of cell-wall, 
32. 
Differentiation of tissues, 138. 
Digitalis, 599, 917. 
Dilleniacege, 136, 646, 653, 
657, 950. 
Dimorphism, 907. 
Dioecious, 490, 500. 
Dioscism, 905. 
Dion, 502, 
Dionaea, 769, 894, 962. 
Dioscore^, 632, 952. 
Diosmeae, 660. 
Diospyrineae, 659. 
Diplostemonous, 600. 
Dipsacaceae, 658. 
Dipterocarpeae, 660. 
Directions of growth, 202, 
206. 
Discomycetes, 308. 
Discophorae, 661. 
Displacement, 219. 
Diurnal and nocturnal posi- 
tions of organs, 881. 
Divergence, Angle of, 188. 
Dorsiventral, 854, 954. 
Dorstenia, 221, 656. 
Doubling of the flower, 542. 
Draba, 605. 
Dracaena, 127, 128, 621, 629 
(Fig. 104). 
Draparnaldia, 281. 
Dried substance of plants, 
695. 
Drimys, 651. 
Drosera, 161, 597, 894. 
Drupe, 616. 
Dryadeae, 221, 662. 
Dudresnaya, 292. 
Dwarf males, 279, 280, 899 
(Figs. 163, 183). 
Ebenaceae, 659. 
Echeveria, 197,597. 
Echium, 598, 614. 
Ectocarpese, 283. 
Ectoplasm, 40. 
Egg-apparatus, 580. 
Elaeagnaceae, 662. 
Elaeagnus, 559 (Fig. 384). 
Elaeis, 54. 
Elaphomyces, 315. 
Elasticity, 779, 784. 
Elater, 23, 344, 345, 350, 
352, 403, 404 (Figs. 18, 
236, 238, 240 bis, 246, 
286). 
Elatineae, 662. 
Electricity, 768, 962. 
Elementary constituents of 
the food of plants, 695. 
Eleutheropetalae, 655, 659, 
Eleutheropetalous, 539. 
Eleutherophyllous, 539. 
Eleutherosepalous, 539. 
Elodea, 750. 
Embryo of — 
Dicotyledons, 634. 
Monocotyledons, 618. 
Embryo-sac, 486, 492, 498, 
506, 520, 529, 576, 900, 
959 (Figs. 397-401). 
Embryology of — 
Angiosperms, 587, 959. 
Coniferae,525 (Figs.354, 
355). 
Cycadeae, 506. 
Dicotyledons, 590 (Figs. 
403-405). 
Equisetum, 395 (Fig. 
277). 
Ferns, 425 (Figs. 296- 
298). 
Gnetaceae, 958. 
Hepaticae, 351,353, 355, 
360, 957 (Figs. 237, 
238, 240, 246). 
Isoetes, 472. 
Monocotyledons, 589 
(Figs. 402, 404). 
Mosses, 375, 957 (Figs. 
257, 264). 
Ophioglosseae, 412. 
Rhizocarpeae, 447 (Figs. 
311, 313-315)- 
Selaginella, 471 (Figs. 
331, 332). 
Embryonal tubes, 529. 
Emergences, 161. 
Empetraceae, 662. 
Empetrum, 570. 
Empirical diagram, 602. 
Empusa, 277. 
Emulsin, 708. 
Enantioblastae, 625, 632. 
Encephalartos, 501. 
Endocarp, 594, 615. 
Endocarpon, 329. 
Endogenous formations, 162, 
170, 359, 400. 
Endophyllum, 330, 331. 
Endoplasm, 40. 
Endosmotic force, 672. 
Endosperm, 472, 486, 492, 
495j 497, 498, 506, 521, 
529, 585, 618, 633, 715, 
900 (Figs. 124, 331, 346, 
348, 354j 355, 400j 40ij 
419? 434j 435)- 
Endospore, 32, 344, 404, 421, 
437- 
Endostome, 570. 
Endothecium, 375, 556. 
Energy of growth, 821. 
Entomophilous, 494, 908. 
