954 



INDEX. 



Hermaphrodite flowers, and wind fertiliza- 

 tion, ii. 134. 



crossing in, ii. 301. 



Linnean view, ii. 291, 



Herminium, scent, ii. 202. 



Herminium Monorchis, pollination, ii. 256. 



Herniaria glabra, perennial, ii. 453. 



Herpes tonsurans, due to Tricophyton ton- 

 surans, i. 169. 



Hesperides, of Braun, ii. 605. 



Hesperis matronalis, attraction of pollen- 

 tubes by foreign ovules, ii. 414. 



opening of flower, ii. 212, 221. 



scent, ii. 201, 209. 



Hesperis tristis, night visitors, iL 197. 



opening of flower, ii. 212. 



perfume, ii. 201, 208, 242. 



Heterochromatisro of flowers, ii. 569. 



Heteroecism, of Uredineae, ii. 686. 



Heterogamy, and autogamy, ii. 340, 390. 



— various forms, and origin of species, ii. 



595. 

 Heteromorphism, application of term, ii. 



469. 

 Heterophyllous plants, i. 66S. 

 Heteropogon, fruit, i. 620. 



— moncBcious, ii. 297. 

 Heterosporous Lycopoflinse, ii. 477. 

 Heterosporous Pteridophyta, ii. 704. 

 Heterospory, In Equisetales, ii. 711. 



— of Hydropterides, ii. 709. 

 Heterostyled flowers, ii. 302, 396, 398, 405. 

 Hibernating shoots, of Potamogeton crispus, 



i. 551. 

 Hibiscus, stigma, ii. 281. 

 Hibiscus ternatns, pollen-grains, ii. 99. 

 Hibiscus Trionum, autogamy, ii. 355. 



— — floral markings, ii. 190. 



opening and closing, ii. 212. 



vitality of spermatoplasm, ii. 96. 



Hieracium, autogamy, ii. 372, 374. 



— capitula closing and poUination, i. 741. 



— geitonogamy, ii. 319. 

 ~ hybrids, ii. 585. 



— indumenta of hybrids, ii. 564. 



— leaves and light, i. 410. 



Hieracium aurantiacum and H, pilosellaa- 



forme, hybrid, ii. 558. 

 Hieracium Auricula, stolons, ii. 663. 

 Hieracium gymnocephalum, Balmatia, i. 



319. 

 Hieracium murorum, and bud-galls of 



Aulaz Hieracli, ii. 543. 

 Hieracium Pilosella, and gall of Psyllodes, 

 ii. 532. 



anthocyanin in florets, ii. 220. 



procumbent, i. 661. 



protection of pollen, ii. 112, 114. 



rolling up of leaves, i. 314. 



stolons, i. 663. 



Hieracium staticefollum, flowers after 



pollination, ii. 286. 

 Hieracium stolonlflorum, hybrid of H. 



aurantiacum x H. piloaellffiforme, ii. 586. 



mean cross, ii. 558. 



Hieracium sylvaticum, and bud-galls of 



Aulax Hieracii, ii. 543. 

 Hieracium tenuifolium, anthocyanin, i. 520. 

 Hieracium tridentatum, and bud-galls of 



Aulax Hieracii, ii. 543. 

 Hieracium umbellatum, autogamy, ii. 361. 

 Hieracium villosum, protection of stomata 



by hairs, i. 292. 

 Hierocbloa, hermaphrodite and staminate 



flowers, ii. 297. 



— scent, ii. 201. 



Hierochloa australis, dichogamy, ii. 312, 

 High Alpine plants, autogamy in, ii. 399. 

 Higher plants not derived from lower, ii. 



614. 

 Hilar caruncle, &o., ii. 425- 

 Hildebrand, and anatomical characters of 



Oxalls hybrids, ii. 565. 

 Hildenbrandtia, cell arrangement, I. 577. 

 HildenbrandtiaNardl and rosea, incrusting, 



i. 425. 

 Hilum, of starch-grain, i. 460. 



Himalayas, Edelweiss of, i. 316. 



— sun and' shade temperatures, i. 525. 

 Himanthalia, thallus differentiation, ii. 664. 

 HimantoglosBum and Orchis, hybridization, 



ii. 583. 

 Hippoorepis, pollen expulsion, ii. 260. 

 Hippophae, dioecious, ii. 300. 



— hair-scales, i. 324. 



— perianth and androecium, ii. 752. 



— pollen storing and dispersion, ii. 148, 150. 



— radical shoots, ii. 27. 



— weaving stem, i. 672. 



Hippophae rhamnoides, pbyllotaxis, i. 400. 



protection of pollen from wet, ii. 109. 



spines, i. 443. 



Hippuris, atrial and submerged leaves, il. 

 505. 



— integument of ovule, ii. 81. 



— stamens, ii. 86. 



Hips, of Roses, dispersal, ii. 444. 

 Historia naturalis, Pliny, ii 1. 

 Historiaplautarum, use of term, ii. 1. 

 Holcus, hermaphrodite and staminate 

 flowers, ii. 297. 



— pollination, ii. 142. 

 HoUy. See Jlex Aqmfoliwn. 

 Holosericeus, texture, i. 320. 

 Homochromatism of flowers, ii. 569. 

 Homogyne, hermaphrodite and pistillate 



flowers, ii. 297. 

 Homogyne alpina, geitonogamy, ii. 321. 

 Homogyne discolor, i. 303. 

 Homologies, danger of establishing, ii. 615. 

 Homosporous, ii. 478. 

 Homosporous Pteridophyta, ii. 704. 

 Honesty. See Imnwria. 

 Honey, alluring, i. 461. 



— concealment, ii. 180, 181. 



— guidance to, Ii. 248. 



— in Nepenthes pitchers, i. 134. 



— secretion, ii. 172, 173. 

 Honey-bee, colour preference, ii. 195. 

 Honey - indicators, name applied to floral 



markings, ii. 190. 

 Honey-leaves of Berberidaceae, ii. 178, 



of Droseraceae, ii. 178. 



of Ranunculacese, ii. 178. 



Honeyless alluring contrivances, ii. 167 et seq. 

 Honey protection by intra-floral hairs, ii. 239. 

 various devices, ii. 241. 



— scent, ii. 202, 207. 

 Honeysuckle scent, ii. 201. 



Hooke, Bobert, confirms Leeuwenhoeck's 



observations, i. 21. 

 Hooked seeds, rare, ii. 870. 



— tendrils of Cobsea, i. 697. 



Hooker, Bentham and, Genera Flantarum, 

 ii. 604. 



— HimsJayan Journal on scandent trees, i. 



704. 



— monograph on Welwitschia, ii. 726. 

 Hookeria splendens, leaf structure and 



greenness, i. 387, 590. 

 Hop. See Sum/alvs lupuVm. 

 Hop-hornbeam. See Ostrya ca/rpvn^olia. 

 Hordeum, glumes, ii. 434. 



— host of TJstilago segetum, ii. 675. 



— pollination, ii. 142. 

 Hormidium, cromatophore, ii. 650. 



— habitats, ii. 650. 

 Hormidium murale, habitat, i. 105. 

 Horminum, honey protection, ii. 241. 

 Hormomyia, gaUs caused by, ii. 529, 537, 538, 



639. 

 Hormosipbon aroticus, habitat, ii. 621. 

 Hornbeam. See Carpmvs. 

 Hornblende, i. 83. 



— and hme in slate, ii. 496. 

 Homwort. See CeTatoph,ylVwm. 

 Horse-chestnut. See .^oulvs. 

 Horae-shoe Vetch, See Hippocrepis, 

 Horsetails. See M^isetaceoB. 

 Hortensia, of horticulturists, ii. 187. 

 Hortus siccus, i. 5. 



Host, action of Bacteria on, i, 162. 

 i — and parasite, intimacy of connection 

 between, in Lophophytum, i. 194. 



Host, appearance after death of Mistletoe, i 



210. 

 — application of term, i. 161- 



— behaviour towards parasites, i. 167. 



— effect of Euphrasia on, i. 179. 



— how attacked by Cuscuta, i. 174. 



— of Lathraea squamaria, i. 181.^ 



— partial destruction by fungi, i. 168. 

 Hosfc-root, effect of Langsdorfifia tubercle ou, 



i. 187. 



how affected by Orobanche, i. 183, 185. 



Hosts, contrivances for protection, L 164. 



— of Bartsia, i. 180. 



— of Cynomoiium, chiefly maritime plants, 



i. 198. 



— of Lathrsea, i. 182. 



— of Viscum album, i. 205. 

 Hottonia, food-absorption, i. 765. 



— heterostyly, ii. 302. 



— pollen dispersion, ii. 105. 



— protective isolation by water, ii. 234. 

 Hottonia palustris, roots absent, i. 76. 

 House-leek. See Sempervivum. 

 Houstonia, pollen-grains, ii. 99. 

 Hovenia dulcis, pedicel and fruit, ii. 435. 

 Hoya camosa, aids to chmbing, i. 687. 



propagation by leaf-cuttings, ii. 41. 



Humble-bee, and pollen, ii. 167. 



and Salvia glutinosa, ii. 262. 



colour preference, ii. 195. 



Humble-bees, as honey stealers, ii. 239. 



Humic acid, produced by decay, i. 101. 



some properties of, i. 101. 



Humidity, continued, of atmosphere, injuri- 

 ous effect on plants, i. 283. 



Humming-birds and honey, iL 180. 



and lateraUy-directed flowers, ii. 225. 



and poUen-sprinkling flowers, ii. 271 



Humous acids, and preservation of fossil 

 plants, i. 262; ii. 612. 



Humulus, dioecious, ii. 299. 



— pollen dispersion, ii. 143. 



— pollination, ii. 133. 



— prickles, i. 687. 



Humulus Lupulus, attacked by Sphserotheca 

 Castagnei, ii. 60. 



dextrorse twining, i. 685. 



fruit-protecting glands, ii. 447. 



nutation, i. 683. 



protogyny, ii. 313. 



seed-dispersal, ii. 854. 



shoots and climbing hooks, L 688. 



stem with Cuscuta, i. 175. 



twining, i. 6ffi2. 



Humus, constitution and facies of vegeta- 

 tion, ii. 498. 



— limitation of availability to plants, i. 113. 



— moisture retention, i. 775. 



— nature of, i. 84. 



— retention of mineral substances, ii. 499. 

 Hundred Years' Aloe. See Agava ameficana. 

 Hungarian plains, hairiness of plants, i. 318. 

 scarcity of Mosses and Perns, ii. 457. 



— uplands, protected vegetation, i, 451. 

 Hura crepitans, detonation, ii. 839. 

 Hutchinsia alpina, autogamy, ii. 339. 



&c., favourite soil, ii. 496. 



Hutchinsia petr^ea, anthocyanin, i. 521. 

 Hyacinthus, ii. 731. 



— alluring petals, ii. 170. 



— epiphyllous buds, ii. 43. 



— leaf-bud, emerging from soil, i, 640. 



— leaves, and rain conduction, i. 94. 



— roots, i. 753. 



— scent, ii. 200, 



Hybridization, formative importance of cyto 

 plasm, ii. 494. 



— general discussion, ii. 317. 



— nature of, ii. 301. 



— realization of factors in, ii. 573. 

 Hybrids, and origin of species, ii. 583. 



— and reversion, ii. 580. 



, — and season of flowering, ii. 574. 



— and "transitional forms", ii. 584. 

 : — artiflcial, number of, ii. 555. 



— change in sexual conditions, ii. 575 



— colours in, ii. 566. 



