INDEX. 



979 



Tomelia fragrans^Philodcmlrou pertusum. 



temperature nitltin siuitlie, i. 501. 



Torsiou, and phyllotaxis, i. 407. 



— ami twining, i. 6S3. 



— of climbiDg stem, i. <"S^. 



— of fibrous strands iu nutating stems, i. 6S3. 



— of leaf-stalks, i. 417, 41S. 

 Torus. See Floral rectptncte. 

 Tournefort, synoptical clas-sification. ii. GOl. 

 Tournefortta, buds on leaf -cuttings, ii. 43. 

 Toiicodcndrou. distribution of sexes, ii. 297. 

 Tozzia alpina, stamen, ii. 91. 

 Trabecula;, of Isoetes sporangia, ii. 717. 

 Tracheae, name of wood-vessels given from 



erroneous view of function, 1. 276. 

 Tracbeides, function of. i. 277. 



— mode of sap conduction, &c., i. 277. 



— oamo of wood-cells given from erroneous 



view of function, i. 276. 



— nature of wall, i. 277. 



— of Conifene, Ii. 720. 

 Trachyte, i. 83. 



— mountains, sand at hnse, i. 82. 

 Tradescautia, absorbeut cells, i. 600. 



— allurement by petals, ii. 171. 



— antbocyanin, i. 520. 



— cotyledon in germination, i. 606. 



— edible stauunal hairs, ii. 170. 

 Tradescantia crassula, cross-fertilization, ii. 



308. 



duration of blossom, ii. 214. 



Tradescantia Virgiuica, cross- fertilization, 



Ü. 308. 



duration of blossom, ii. 214. 



germinating seed, i. 599. 



opening and closing, ii. 212. ,-' 



Tragacanth bushes. See Astragalus. 

 Tragacanth -shrubs, spiny, i. 435. 

 Tragacanth acei, geographical distribution, 



habitat, spines, i. 447. 

 Tragopogon, lestivation, ii. 210. 



— capitula closing and pollination, i. 741. 



— flowers after pollination, ii. 286. 



— geitonogamy, ii. 319. 



— laticiferous tubes, i. 470. 



— time of closing, ii. 221. 

 Tragus. See Bock. 



Trailing Azalea. See Azalea procumhens. 

 Trametes, nutrition, attacks cell-walls, i. 167. 

 Trametesnidiciperda.SeePo^yponwannoyiiÄ. 

 Transference of pollen, by explosive appa- 

 ratus, ii. 265. 



by percussive apparatus, ii. 262. 



Transformation, of reserve substances, i. 601. 

 - progressive, by inherent forces, ii. 596. 

 "Transitional forms" of Viola really hybrids. 



it 534. 

 Transmission of water, centrifugal, i. 94. 



centripetal, i. 94. 



Transpiration, and fall of leaf, i. 355. 



— and growth, i. 513. 



— and root-pressure, i. 282, 366. 



complementary and supplementiiry 



action of. i. 281. 



— and vascular tissue, i. 347, 362. 



— by cortex of stem. i. 330. 



— cessation for lengthened periods, i. 304. 



— conditions of, in tho case of plants with 



rolled leaves, i. 305. 



— contrivances for aiding, in placts with 



rolled leaves. L 303. 



— cnrrent, i. 274. 

 path of, i. 276. 



— effect on cell -content«, general considera- 



tiona, i. 274. 



— extent of action, i. 282, 



— factors in, i. 326. 



— form and position of organs of, i. 325. 



— knowledge of conditions regulating, ncoes- 



sary for cultivation, i. 310. 



— leaf movementa in relation to, i. 338. 



— mechanism of, compared to suction-pump, 



i, 281. 



— neceasity for diminution, in high Alpine 



plants, i. 315. 



— necessity for means of increasing, in float 



ing leaves, i. 288. 



Transpiration of cladodes, i. 334. 



— of Lianes, i. 347. 



— protection of stomata, i. 290. 



— regulation, i. 284. 

 by stomata, i. 309. 



-in deciduous leaves, 1. 347. 



— seasonal, i. 347. 



— signification of, i. 283. 



— shape in relation to, i. 327. 



— substitute for, in certain plants, i. 282. 

 Transplanting, of plants, with symbiotic 



mycelia, i. 250. 

 Transport, of food materials, i. 466. 



— of water, i. 366. 

 Trapa, air-bladders, i. 425. 



— cotyledon.^, ii. 421. 



— floats, i. 638. 



— fruit anchoring, i. 617. 



— heterophyllous, i. 6(58. 



Tmpa natans, calyx and fruit, ii. 434. 



direction of roots on germination, i. 90. 



resting of seeds, i. 563. 



Trapella sinensis, hooked fruit, ii. 872. 

 Traps, advantage of, i. 158, 



— animal, of Dioniea, i. 149. 

 of Lathnea, i. 136. 



of Lathrsea and Pinguicula, i. 137 



— of Bartsia, i. 138. 



— of Utricularia neglecta, i. 121. 

 Traveller's Joy. See Clematis. 

 Traveller's Tree. See liavenala Madagas- 



carUnsis. 

 Tree, habit, i. 718. 



— phylogenetic, thallophj-tic part, ii. 620. 

 "Tree constrictors", i. 704. 

 Tree-ferns, ii. 473. 



aerial roots, i. 714, 753. 



caudei, i. 714. 



mode of growth, i. 659. 



root-hairs of. i. 224. 



tropical, delicacy of outer wall of epi- 

 dermal cells in certain, i. 284. 

 Tree of Chastity. See VUex Agnus-castus. 

 Tree of Life. See Arbor vita. 

 Trees, age, i. 720. 



— and struggle for existence, ii. 515. 



— characteristics of inflorescences, i. 745. 



— tables of dimensions, i. 722. 



— trimming of. on transplanting, i. 92. 



— various, and cold resistance, i. 544. 

 Tremella mesenterica, ii. 687. 

 Trentepohlia, structure, ii. 652. 

 Trentepohlia lolithus, scent, ii. 653. 

 Trentepohlia spongophila, Sumatra, and 



sponge, ii. 653. 

 TrentepohHa umbrina, and Lichen-fungi, ii. 



653. 

 Treub, and chalazogamic fertilization, ii. 616. 

 Trianon, Botanic Gardens, and natural 



system of classification, ii. 602. 

 Tribulus Orientalis, spinöse fruit, ii. 875- 

 Triceratium Favus, ii. 626. 

 Trichia clavata, spore-dispersal, ii. 813. 

 Trichoblasts, of Mangrove stilt-root«, i. 701. 

 Trichochne. pericarp mucilage, i. 615. 

 Trichocolea tomentella. stem, i. 591. 

 Trichodesmium Erythraium, and "Flowers 



of the Sea", ii. 621. 



reddening of sea, i. 389. 



Trichogyne, of Dudresnaya, ii. 53. 



— of rioridea;, ii. GO. 

 Trichomanes Lyallii, ii. 707. 



fronds and sorus, ü. 11. 



Trichomes, dead, restrictive of tranepiraiion, 



1. 313. 

 Trichophllus. in hair« of a Sloth, ii. 627, 653. 

 Trichophyton tonsurans, cause of Herpes, i 



169. 

 Trichoatomum tophaceum, lime-incrusted, i. 



260. 

 Tricyrtes pilosa, flower, 11. 181. 



flower and autogamy, ii. 361. 



honey concealment, ii. 182. 



nectaries, ii. 176. 



Tridactylites. autogamy, ii. 337. 



Trientalis Europa;*, difficulty of cultivation. 



i. 113. 



Trifolium, behaviour to own and foreign 

 pollen, ii. 407. 



— corollas after fi-rtilization, ii. 286. 



— floral change of colour, ii. 191. 



— insects and keel movements, ii. 252. 



— leaf, diurnal positions, i. 534. 



— movements of cotyledons, i. 532. 



— scent, ii. 203. 



Trifolium agrarium. fruit, ii. 433. 

 Trifolium badium. fruit, ii. 433. 



inflorescence, ii. 184. 



seed-diapcrsal, ii. 855. 



Trifolium frngiferum. creeping stem, i. 662. 

 Trifolium hybndun», change of colour, ii. 191. 

 Trifolium nidificum, seed-dispersal, ii. 854. 

 Trifolium prateuse, downward pull of roots, 



i. 767. 

 Trifolium repens, antholysis, ii. 83. 



creeping stem, i. 662. 



shade and growth, ii. 506. 



TrifoUum resupinatura, scent, ii. 203. 



scent during day, ii. 209. 



Trifolium spadiceum, change of colour, ii. 192. 

 Trifolium stellatum, creeping fruits, ii. 843, 



844. 

 TrifoUum tomentosum, wind-dispersal, ii. 



848. 

 Triglochiu, dichogamy, ii. 135. 



— dichogamy and cross-fertilization, ii. 314. 



— pollen storing and <bspersion, ii. 148. 

 Triglochin Barellieri, flower, i. 646- 

 Triglochin palustre, flowers, ii. 149. 



hooked fruits, ii. 874. 



Trigouellafoenum-grsecum, tubercles on root- 

 fibres, ii. 521. 



Trillium, autogamy, ii. 332. 



— duration of flower, ii. 214. 



— protogj'nous, ii. 311. 



Trillium grandiflorum. scent, ii. 202. 

 Triopteris bifurca, seed-tlispersal. ii. 853. 

 Triopteris brachypteris, pollen-grains, ii. 99. 

 Trioza Khamni, scroll-gall on Rhamnus 



catharticus, ii. 531. 

 Tripoli, construction through plants, i. 261. 

 Tripoli powder, and diatoms, ii. 614. 

 Tritelia. pollen -grains, ii. 98. 

 TrJtlirinai aculeata. aerial root spines, i. 433, 

 Triticum and .JÜgilops. hybridization, ii. 583. 



— and Elymus, hybridization, ii. 583. 



— and Puccinia graminis, ii. 636. 



— polUnation, ii. 142. 



Triticum caninum, arched leaf. i. 430. 

 Triticum repens, boring scale-leaves, i. 653. 

 Triticum vulgare, absorbent cells, i. 6üO. 



grain, scutellura, &c.. i. 599. 



TriumfettaPlumieri, hooked fruit, ii. 873. 

 Trixago, pollen sprinking, ii. 272, 

 Trixago apula, autogamy, ii. 353. 

 Trollius, colour of sepals, ii. 183. 



— movements of stamens, ii. 250. 



— nectaries, ii. 179. 



— protection of pollen from wet, ii. 109. 

 Trollius Euro pajus, effect of mutilation, ii. 517. 

 flower, section, ii. 249. 



scent, ii. 201. 



sheltering of pollen, ii. 110. 



Troineolimi. cotyledons, i. 608; ii. 421. 



— fading of flower, i. 743. 



— leaf-stalk tendrils, i. 692. 



— nectary, ii. 177. 



— pollen-grains, ii. 98. 



— ringed tendrils, i. 694. 



— Venation, i. 632. 

 Tropa-'olum majus. seedling, i 607. 

 Truflle. See Tubfr. 

 Truftle-fruit, ii. G78. 



Trumpet hyphtu. of Laminaria. ii. 662. 

 Trumpet Tree. See Catalpa syriiujtr/oUti. 

 T8chitscherb<iden, interior of Istria. absence 



of Heaths, i. 307. 

 Tsuga Douglasii, Intermediate characters, ii. 



725. 

 Tuber, morphological value, ii. 6. 



— nature of, i. 651. 



Tul>er mclauosporum, ii. 681. 

 Tuberaceaj, description, ii 678. 

 Tubercle, of PhylIoglo8«um, ii. 715. 



