INDEX. 



943 



Dasyoladefle, charaoteristica, ii. 647. 

 Dasylirion, habitat, 1. 438. 



— leaf, teeth and apex, i. 438. 

 Dasytes, honey-suoker, ii. 179. 



— pollen devourer, ii. 167. 



Date Palm. See Phcenix dactyli/era. 

 Date-plum. See Diospyros Lotus, 

 Datura, opening and cloaing, ii. 116. 



— Bcent, i. 202. 



Datura ceratocaula, size of flowera, ii. 185. 

 Datura Knightii, size of flowers, ii. 186. 

 Datura Metel, time open, ii. 213. 

 Datura Stramonium, fruit protection, ii. 442. 



inequality of leaves and use, i. 422. 



leaf-mosaic, i. 411. 



night Tisitors, ii. 196. 



odour, i. 431. 



opening of flower, ii. 212, 213. 



protection of pollen, ii. 113. 



Dauous, peripheral flowers, ii. 186. 



— umbel, day and niglit positions, i. 531. 

 Daucus Carota, downward pull of roots, i. 767. 

 protection of stomata from moisture, 



i. 295. 



root, i. 760. 



Daughter-cells, i. 578. 



DavaUia, protection of sporangia, ii. 13. 



— sorus and indusium, ii. 706. 

 Day-lily. See Memerocallis Jlava. 



Deadly Nightshade. See Atropa Belladonna. 

 Dead Sea, blueness, i. 389. 

 De Candolle, i. 15. 



table of classification, ii. 603. 



Decay, putrefactive, a necessary condition 



of Ufe, i. 264. 

 Deciduous Cypress. See Tacoodium di&- 



Deciduous leaves, i. 347. 

 change of colour, i. 485. 



— shrubs, anthocyanin, i. 520. 



— stipules, i. 351. 

 Decurrent, leaf, i. 596. 



— leaves, transpiration, i. 336. 

 Decussate leaves, i. 398. 



Definitive nucleus, and endosperm forma- 

 tion, ii. 421. 



DefoHation, i. 361. 



Dehiscence of anthers in Grasses, ii. 91, 140. 



Dehiscent dry fruit, ii. 429. 



Deilaphila Euphorbiee, victim of Ajaujia, ii. 

 260. 



De Jussleu, A. L. and B., natural system of 

 classification, ii. 602. 



De I'Ecluse, Charles (1526-1609). See Clumis. 



Delphinium, foliage and light, i. 412. 



— foUicle, ii. 430. 



— iutegument of oviile, ii. 81. 



— morphological value of ovule, ii. 82. 



— possible cause of doubling, ii. 554. 



— preservation of colour in Egyptian graves, 



i. 262. 

 Delphinium Ajacis, effect of mutilation, ii. 



517. 

 Delphinium cashmirianum, antholysis, ii. 



78. 

 Delphinium elatum, antholysis, ii. 83. 



re-erection of inflorescence, i. 744. 



Delphinium nudicaule and D. cashmirianum, 



colour of flowers and hybrid, ii. 5G7. 

 Delpino, and difference of pollen in hetero- 



styled flowers, ii. 405. 

 Dendrobium, ii. 738. 



— fimbriatum, discharge of pollinia, ii. 269, 



270. 

 Denizen, application of term, i. 243. 

 Dentaria, peripheral flowers, ii. 186. 



— scaly stem, i. 652. 



— waxy coating, ii. 237. 



Dentaria bulbifera, bulbils, ii. 460, 461. 



habitat, ii. 110. 



rhizome and light, i. 484. 



Dentaria digltata, Sec, leaf and light, i. 286. 



habitat, ii. 110. 



Dentaria enneaphyllos, habitat, ii. 110. 

 Dentate, i. 233. 



De Plantis Libri, by Cesalpino, ii, 601. 

 Deposition of pollen, ii. 280. 



Derbesia, zoosporangia and zoospores, ii. 



645. 

 Derivatives, of hydro-carbons, i. 454. 

 Dermatogen, and leaf origin, i. 649. 

 Dermestes, and Dracunculus vulgaris, ii 



165. 



— and indoloid scents, ii. 207. 

 Dermestes tmdulatus, and Dracunculus 



Oreticus, ii. 165. 

 Dermogloea, ii. 621, 

 De SausBure, discovers red-snow, i. 38. 

 Deserts, annual and perennial plants in, i. 



556. 

 Desiccation, protection from, by salt incrusta^ 



tions, i. 236. 



— protection of fruits from, ii. 449. 

 Desmanthus natans, swimming apparatus, 



i. 669. 



Desmid, division, ii. 655. 



Desmids and specific constitution of proto- 

 plasm, ii. 492. 



— cell-division, PI. I., i. 576, 581. 



— conjugation, ii. 55. 



— habitat, i. 76 ; ii. 655. 



— nutritive cycle, PI. I., i. 466. 



— sculpturing of wall, i. 577. 



— striae of cell-walls, i. 568. 



— swarms of, i. 585. 



— various species, i. 492. 



— zygospores, ii. 492. 



Desmodiiunpenduliflorum, leaf, diurnal posi- 

 tions, i. 534. 



Desmoncua, spathe, i. 641. 

 Desmoncus polyanthus, shoot apex, i. 676. 

 Deterrent substances, i. 461." 

 Development, highest, views concerning, ii. 

 598. 



— of individual, and phyllogeny, ii. 608. 

 Dew, accxunulation on under surface of 



leaves, i. 291. 



— and diurnal positions of leaves, i. 535. 



— carbonic and nitric acid in, i. 370. 



— on steppes and deserts, i. 235. 

 Dew-cup. See A Ichemilla. 

 Dew-leaf. See Drosophylhtm. 

 Dextrin, from starch, i. 465. 



— from sugar, i. 506. 



— osmotic behaviour of, i. 59. 



— percentage composition, i. 454. 

 Diacalpe, protection of sporangia, ii. 13. 

 Diadromous venation, i. 633. 

 Dialypetala, of Endlicher, ii. 604. 

 Diandrse, andrcecium, ii. 736. 

 Diandria, Linnean class, ii. 86. 

 Dianthcecia albimacula, poUinating Silene 



nutans, ii. 155. 

 Dianthus, sestivation, ii. 210. 



— and ancient crossing, ii. 555. 



— and Campanula, colour-contrast, ii. 193. 



— double-flowered hybrids, ii. 576. 



— double flowers, ii. 80. 



— favoured guests, ii. 230. 



— honey protection, ii. 238. 



— hybridization and flower colours, ii. 568. 



— hybrids, ii. 584. 



autogamous propagation, ii. 579. 



— massing of flowers, ii. 186. 



— nectaries, ii. 176. 



— of Mediterranean, waxy bloom of leaves, 



i. 312. 



— pollen-grains, ii. 99, 102. 



— propagation by cuttings, i. 251. 



— substratum, ii. 498. 



— transition from stamens to petals, ii. 86. 

 Dianthus alpinus and D. superbus, hybrid 



of, ii. 563. 



cultural experiments, ii. 513. 



Dianthus Carthusianorum, pollen-grains, ii. 



98. 



thermal constants, i. 559. 



Dianthus Caryophyllus, mechanical tissue 



arrangement, i. 730. 



possible cause of doubling, ii. 554. 



scent, ii. 200. 



Dianthus deltoides, cultural experiments, 



sources of error, ii. 513. 

 Dianthus glacialis, aestivation, ii. 210. 



Dianthus glacialis, autogamy, ii. 337, 364. 



distribution of sexes, ii. 298. 



Dianthus inodorus (sylvestris), elevation and 



coloration, ii. 511. 

 Dianthus neglectua, lestivation, ii, 210. 



autogamy, ii. 364. 



Dianthus CEnipontanus, hybrid, ii. 563. 

 Dianthus plumarius, possible cause of doub- 

 ling, ii. 554. 



scent, ii. 200. 



Dianthus polymorphua, PI. VI. 



Dianthus prolifer, distribution of sexes, ii. 298, 



duration of flowering, ii. 213. 



Dianthus superbus, scent, ii. 200. 

 Dianthus viscidus, source of specific name, 



ii. 235. 

 Diapensia Lapponica, Aictic, absence of 



hairs, i. 316. 

 DiapensiaccEe, ii. 768. 

 Diastase, action on starch, i. 459, 465. 



— distribution in plant, i. 483. 

 Diastole. See Vacuole. 



Diastrophus Scabiosse, hud-galls on Cen- 



taurea, ii. 543. 

 Diatom, description, i. 261; ii. 625. 

 Diatom-deposits, ii. 627. 

 Diatom-earth, ii, 614. 

 Diatomacese, as prey of Aldrovandia, i. 153. 



— cell-membrane of, i. 40. 



— conjugation, ii. 55. 



— epiphytic, non-parasitic, i. 77, 160. 



— geographical distribution, ii. 626. 



— movements of, i. 39 ; ii. 626, 



— preparation of sfliceoua akeletons, 1. 67 



— propagation, &c., ii. 626. 



— resistance to cold, i. 542. 



— silicic acid in, i, 67, 70. 



— social groups, i. 585. 



— some attached, some free, i. 40. 



— structure and Ught, i. 388. 



— swarms and filaments, i. 585, 586. 

 Diatomin, pigment of Diatoms, ii. 625. 

 Diavolezza, Switzerland, soil and air tem- 

 peratures, i. 525. 



Dichogamous fiowers, ii. 307, 310. 

 Dichogamy and hybridization, ii. 314. 



— in Saxifraga rotundifolia, ii. 308. 



— natiu^ of, ii. 134, 309. 

 Dicksonia, aerial roots, i. 753. 



— caudex, it. 705, 714. 



— sorus and indusium, ii. 708. 

 Dicksonia antarctica, aerial roots, i. 714. 

 Diclines irregulares, of de Jussleu, ii. 602. 

 Dicotyledones, ii. 728. 



— definition of, earlier subdivisions, i. 15. 



— distinctive characters, ii. 748. 



— of de Jussieu, ii. 602. 



— sub-classes, ii. 748. 

 Dicotyledons, ii. 617. 



Dicranodontium aristatum, vegetative pro- 

 pagation, ii. 458. 



Dicranodontium longirostre, habitat, 1. 109. 



Dicranum, absorptive felt, i. 86. 



Dicranum congestum, habitat, i. 109. 



Dicranum elongatum, habitat, i. 113. 



Dicranum Sauteri, exclusive habitat, i. 119. 



Dicranum scoparium, habitat, i. 109. 



Dictamnus, stamens as insect platform, il. 

 225. 



Dictamnus fraxinella, scent, ii. 203. 



Dictydium cemuum, sporangia, ii. 491, 618. 



Dictydium umbilicatum, life-history, i. 572. 



Dictyodromous, venation, i. 630. 



Dictyonema form, of Cora, ii. 695. 



Dictyopbora phalloidea, ii. 691. 



Dictyosphserium, life-cycle, ii. 636. 



Didymiimi, i. 573. 



Didymodon ruber, parthenogenesis, ii. 464. 



Diervilla, twisting of internodes, i. 417. 



Diervilla Canadensis, erect and pendent 

 twigs, i. 417. 



Diervilla rosea, ovules and attraction of pol- 

 len-tubes, ii, 414. 



Diffusion, through membrane and free, i. 59. 



Digestion, by Nepenthes pitcher, i. 135. 



— in Aldrovandia, i. 153. 



— of prey, by Dionaea, i. 150. 



