INDEX. 



967 



Pholivnopeis Schilleriaim, clinging roots, i. 



754. 



Iw^Uinatiou, ii. 227. 



Fbalahä arumliimcvii, jtrotcctiou of stouinta 

 from moisture, i. 2W. 



wfftther-cock leaves, i. 427. 



Phallus, siiriTeliiiig through loss of water, i. 



216. 

 Phallus cauinus, sphere-crystals, i. 457. 

 Phallus impudicus, ii. 691. 



spore-<lispersal, it 827. 



Phftiierogamia, absence of fossil connecting 



links with lower groups, iL 613. 



— alternation of generations, ii. 478. 



— analogies with Rhizocarpe» and Sela- 



ginelle» in female reproductive organs, 

 Ü. 69. 



— aquatic mode of attachmeut, i. 77. 



— corrosive power of roots, experimental 



illustration, i. 258. 



— discussion of true nature of partheno- 



genesis, ii. 467. 



— embryo dififerentiation, ii. 450. 



— fertilized in the air, ii. 71. 



— general characters, ii. 717. 



— homologies of reproductive organs, ii. 717. 



— mechanical action of roots, i. 265. 



— number and grouping in Genera Plaut- 



arum of B. and H., ii. 604. 



— pollen and water, ii. 106. 



— pollen-sac arrangement, iL 89. 



— saprophytic, in meadows, t 112. 



— sub-phylla, iL 719. 

 Phanerogamic ovaries, ii. 77. 

 Phaseolus, leaf movements, i. 339. 

 Phaseolus vulgaris, nutation, L 683. 

 Philadelphus, separation-layer, i. 361. 

 Phillyrea, pollination, iL 138. 

 Philodendron, leaves cover air-roots, i. 225. 

 Philodeudron bipinnatifidum stem, ii. 745. 

 Philodendron imbe, L 365 ; iL 744. 

 Philodendron Lindenii, root-hairs, i. 224. 

 Philodendron pertusum, L 365; iL 744. 

 aerial roots, i. 366. 



Philosophia Botanica, of Linnaeus, definition 



of varieties, ii, 514. 

 Phleum. pollination, ii. 142, 

 Phlomis, bairiness, i. 317. 

 Phlox, honey protection, iL 241. 



— protection of pollen from wet, ii. 111. 

 Phoenix dactylifera, absorbent end of coty- 

 ledon, i. 600. 



germination, i. 607. 



mechanical tissue arrangement, i. 729. 



vitality of spermatoplasm, iL %. 



Phosphorescence and light of Fungi, L 503, 



^ of sea, caused by Dinoflagellata, ii. 625. 



Phosphoric acid, ferment action, i. 465. 



Pbosphonis, in ash of plants, i. 66. 



~ necessary for nitrogen compounds, L 67. 



Phragmites communis, ash constituents, i. 

 68. 



mechanical tissue arrangement, i. 731. 



spreading of, ii, 798. 



"Phr>-gana", of Theophrastus, i.e. semi- 

 shrubs, i. 444. 



Phrjgian form, produced by animals, i. 445. 



Phycocyanin, pigment of Cyanopbyces, iL 

 621. 



Phycoerythrin, L 460. 



— fiuoreacence, i. 379, 390, 



— function, i. 390. 

 Phycomycetes, characters, iL 668. 

 Pbycopbaein, pigment of PbEeophycco;, ii. 



661. 

 Phygelius, protogj'nous, iL 311. 

 Phygelius capensis, flower, ii. 18L 



flowers and autogamy, ii. 384. 



Pbyllanthus, pbyllocladous plant«, L 334. 

 Phyllanthua cyclanthera, anthers, ii. 90. 

 Phyllanthus speciosus, L 335. 

 Phyllobium dimorphum, life-history, fi. 638. 

 Pbylloclades, in Chenopodiacese, ii. 749. 



— leaf-branches, i. 333. 



— of Colletia, Ac, L 334. 

 Phyllmle, nature of, i. 335. 



— of Acacia, i. 637. 



I'hyllodes, distribution of stomata on, i. 281. 

 Phylloglossuni, general structure, ii. 715. 

 IMiyllosiphoo arisari, life-cycle, iL 643. 

 Phyllostacbys bambusoides, protection of 



stomata from moisture, i, 294. 

 Phyllutaxis, and sliape of leaves, i. 408. 



— determination of, L 403. 



— of stamens, ii. 85. 



— plan of whorled, i. 397. 



— plans of spiral, L 400. 



— various series, i. 404. 

 Phylocladia, luminosity, L 388. 

 i'lijlogenetic tree, iL 620. 

 Phylogeuy, of plants, iL 607. 

 Physalis, corolla and autogamy, iL 366. 



— guides to honey, ii. 249. 



— protection of pollen, ii. 118. 



Pbysalis Alkekeugi, calyx and fruit, ii. 434. 



red pigment, L 461. 



Pbyscia cUiaris, apotheciuui, ii. 681. 

 Physcia parietina, Foliose Lichen, iL 694. 

 Physianthus albens. See Aranjia atbens, 

 Physocytium, life-cycle, ii, 636. 

 Phyteuma, nectary concealment, ii. 181. 



— opening of flower, ii. 211. 



— storing of pollen on style, iL 359. 

 Phyteuma orbiculare, autogamy, ii. 362. 

 bud-galls of Cecidomyia phyteumatis, 



iL 544. 

 Phyteuma spicatum, autogamy, iL 362. 

 Phytolaca decandra, seed and embryo, ii. 



422. 

 Phytophthora omnivora, on seedlings, ii, 



G70. 

 Phytoptus and fasciations in Ash, iL 549. 



— and formation of double flowers, ii, 459. 

 Pit'meut, chlorophyll-protecting, L 392. 



— of Floridew, L 388. 

 Pigments, fluorescing, i, 379. 



— from bacterial activity, L 506. 



— of plants, i. 460. 



Pilacraceaj, distinctive features, ii. 687. 

 Pilea microphylla, ejection of pollen, ii. 137. 

 PUeus, of Agarics, ii. 491, 689. 



— of Hymcuomycetes, ii. 688. 



Pilobolus cristalliuus, dispersal of spores, ii. 

 825. 



Pilostyles, distribution, i. 204. 



Pilostyles Haussknechtii, mycelium-like tis- 

 sue in host, L 200. 



PUularia, leaves and sporocarps, ii. 711. 



Pimpernel. See Anagallis. 



Pimpinella magna, anthocyanin, L 522, 



scent, ii. 202. 



Pimpinella saxifraga, periodically pendulous 

 umbels, i. 530. 



Pine. See Pinus. 



Pine-apple. See Ananassa saliva. 



Pine-cone, phyllotaxis, L 402. 



Pioguicula, autogamy, ii. 356. 



— capturing apparatus, i. 137. 



— habitat, L 140. 



— nectary, ii. 178. 



— number of species, &c., L 140. 

 Pingnicula alpiuu, leaf section, L 137. 

 Piuguicula vulgaris, capsule iu dry and wet 



weather, ii. 448. 



— stamen, L 91. 

 Pink. See Dianthui. 

 Pinus, ii. 721. 



— and resistance to cold, ii. 489. 



— and Witches' Broom, ii. 527. 

 -~ branch, section, i. 22. 



— cone protection, iL 442. 



— egg-cella, ii. 419. 



— green cotyledons, L 622. 



— moncecious, ii. 297. 



— mutilation by niminnnts. ii. 515. 



— mycorhiza Fungus, ii. 678. 



— ovuliferous and bract scales, ii. 440. 



— protection of ovules, ii. 72. 



— specific value of leaf anatomy, ii. 565. 



— stomata on leaves, i. 280. 



— Bubdiviftion, ii, 725. 

 Pinus Cembra, iL 727. 

 age, i. 722. 



cold resistance, L 543. 



Pinus Cembra, dimensions, i. 722. 



pollen-grains in atiow-duat, i. 38, 



protective re.siu of cones, ii. 446. 



seed-coat, iL 43'J, 



Piuus excelsa, cold resistance, L 543. 

 Pinus Holepensis and cold, i. 543. 

 Pinus humilis, habit, habitat and snow, i. 

 M8. 



Tyrol, i. 549. 



Pinus Pinea, and cold, L 543. 



seed-coat, ii. 439. 



Pinus PumiHo, female flower, ii. 722. 



male and female cones, ii. 144. 



pollen-gralna, iL 98. 



pollen storing and dispersion, iL 145. 



Pinus serotina, branch and cone, iL 443. 

 Pinus Strobus and Pcridermiuiu ,Strobi, iL 



527. 

 Pinus sylvestris, age, i. 722. 



and Coleosporium seuecionis, ii. 686. 



dimensions, L 722. 



ovule, 8tructiu*e, ii. 418. 



ovuliferous scale, ii. 441, 721. 



seed protection and disi>ersal, ii. 449. 



Piper, root-forming leaves, i. 772. 



— roots from leaf -cuttings, L 88. 

 Piperacete, cause of white spots on leaves, L 



285. 



— collective fruits in, ii. 436. 

 Piper Betle, collective fruit, iL 437. 

 Pisonia and galls of Pemphigus cornicuhirius, 



iL 535. 

 Pisonia aculeata, sticky fruit, ii. 870- 

 Pistacia, pollination, ii. 138. 

 Pistacia Lentiscus and Witches' Broom, iL 



527. 

 Pisteic, characteristics, iL 745. 

 Pistia, adaptation to change of habitat, L 76. 

 Piston-apparatus, pollen distribution, ii. 260. 

 Pisum, fruit protection, ii. 446. 



— keel movements and pollen brush, ii. 252. 

 Pitcher of Frullania, iL 698. 

 Pitcher-plants, digestion of prey, i. 124. 

 Pitchers, i. 127. 



— alluring, Ä:c., contrivances, i. 134. 

 Pitfalls, advantage of, i. 158. 



— structure, &c., in Genlisea, i. 124. 



— various shapes, i. 130. 

 Pith-galls, appearance, ii. 537. 



Pits, bordered, of trachcides and tracheae, L 

 276. 



structm-e of, L 45. 



Pitted vessel, i. 469. 

 Placenta of ovary, L G44; iL 81. 

 Plagiotheciura nekeroideum, alisorption - 



cells, i. 85. 

 Plains, type of community, iL 888, 892. 

 Plan of whorled phyllotaxis, L 397. 

 Plane-tree. See Platanns. 

 Plant, adaptation, i. 567, 



— biennial, L 658. 



functions of roots, i. 751. 



roots, L 760. 



— cycle of development and climatology, L 



564. 



— division of labour, i. 367. 



— fanciful comparisons of Natu re -philoso- 



phers, i. 12. 



— monoecious, iL 298. 



— spines and prickles, i. 433. 



— typical, Goethe's, i. 12. 

 Plantaginacero, iL 771. 

 Plantago, pollination, iL 135. 



— protection of pollen, ii. 123. 



— seed-cement, L 615. 

 Plantago cretica, dispersal, iL 849. 

 Plantago major und animals, i. 432. 

 Plantago media, &c., leaves and rain conduc- 

 tion, i. 95. 



spikes and radiation, \. 530. 



Plantago recurvaia, spikes and nocturnal 



radiation, i. 530. 

 Plantain. See JXiw« imradlsiaca. 

 Plant-body, nature of, i. 590. 



simplest form, i. 591. 



Plant communities, IL 885. 

 type» of, iL 887. 



