Hybridization (cozt.)— 
Double flowers—production of (illust.), i, 
63. 
Evolution of horticulture — influence of 
hybridism, i, 58. 
Examples of hybrid plants in wild state 
and as raised by cross-fertilization 
(illust.), 1, 62. 
Ferns—treatment of, i, 64. 
Improvements due to judicious treatment, 
i, 58; extracts from reports on apple 
and pear culture, ii, 48, 101; plums, 
illusts. of hybrid forms, &c., ii, 151- 
153. 
Isolation and self-fertilization to fix varie- 
ties, i, 62. 
Orchids—mode of procedure for crossing 
and hybridization (illust.); descript. of 
wild hybrid forms, i, 61, 62. 
Process of—explanation and directions for 
dealing with various types of flowers, 
1, 55, 59, 60; emasculation of anthers, 
i, 60; appliances and details for prac- 
tical work, i, 60. 
Sports or bud-variations, appearance and 
origin of, i, 55, 65 
Hybrids—descript. and examples (illusts.), 
1, 55, 64. 
Hydrangea —calendarial directions, i, 5, 8, 
12, 14; pruning H. paniculata, i 1, 256; 
hardy sess: &c., descript., cult., 
and illusts., 1, 304, 305; H. Hortensia 
as greenhouse plant, i, 537; forcing 
forms and directions, 1, 622. 
Hydrogen—combination with free nitrogen 
and the formation of ammonia, i, 143. 
Hylemyia nigrescens — descript. and 
remedies, 1, 112. 
Hylotoma—(illust.), descript. and treat- 
ment, i, gt. 
Hymenanthera crassifolia — (illust.), 
descript. and cult., 1, 305. 
Hymenocallis—species, &c., descript. and 
cult:; 1; 552- 
Hymenophyllum—stove and ereeiouse 
species, &c., descript. and cult., i, 594, 
595; hardy. ferns, descript. and cult., 
1, 605. 
Hyophorbe—species of, descript. and cult., 
ih (ae 
Hypericum—descript. and cult. of hardy 
ornamental species, &c., 1, 305, of hardy 
herbaceous perennials, ‘i 362; forcing 
kinds and directions, 1, 623; summer- 
bedding sorts, i, 632. 
Hypocotyl—formation (illust.) and use of, 
1, 34, 35- 
Hypolepis — species, 
cults 1, 595- 
Hyponomeuta Padellus — (illust.), 
script. and treatment, i, 94, 95. 
Hyssop—descript., uses, and cult., ii, 448; 
foreign names of, ii, 527; calendarial 
directions, il, 535, 541. 
Hyssopus officinalis—(see Hyssop). 
&c., descript. and 
de- 
I 
TIberis—calendarial directions, i, 16; descript. 
and cult. of perennial species, &c., 
i, 362, of annual species, 1, 392. 
TIce-house--(illust.), construction and man- 
agement of, 1, 215, 216. 
Iceland poppy—descript. of, i, 368. 
Ichneumon flies —(iliust.), as garden 
friends, 1, 120, 121. 
Idesia polycarpa—descript. of, i, 305. 
Ilex—species,&c., descript., cult., and illust., 
i, 305, 306; winter-bedding vars., 1, 647. 
Impatiens—hardy annuals, descript., cult., 
and illust., i, 392, for summer-bedding, 
i, 635; stove species, &c., descript. 
AnGleult. 15/55 1- 
Implements Weed in gardens—(see Tools). 
Inarching, propagation of—directions 
and illusts., 1, 245-247. 
Incarvillea—species, &c., descript., 
and illust., i, 362, 363. 
cult., 
INDEX. 
Incurvaria capitella—(illust.), descript. 
and remedies, i, 113. 
India-rubber plants—descript. and cult., 
1, 559. 
Indian bean tree—descript. of, i, 294. 
Indian corn — descript., illust., uses as 
table vegetable and field crop, direc- 
tions for cooking, cult. in America and 
England, &c., li, 448, 449; foreign 
names of, ll, 527. 
Indian cress—(see Nasturtium). 
Indian fig plant—descript. and cult., i, 
620. 
Indian pink—(illust.), descript. and cult., 
1, 374, 391. 
Indigofera Gerardiana — descript. 
1, 305. 
“Individual plant”—botanical meaning 
of term, 1, 66. 
Inflorescence—growth of (illust.), i, 47- 
Insect Agency on Formation and Life 
of Plants— 
Contraction of leaf of insectivorous plant 
caused by contact of insects (illust.), 
iy, Bille 
Conveyance of pollen by insects and parts 
of flowers adapted for access of insects 
(illust.), 1, 51, 54, 59. 
Insect and other Plant Enemies— 
Bark enemies—descript. (illusts.) and reme- 
dies, i, 67-71. 
‘Biting ” and ‘‘sucking” insects—descript. 
of groups, 11, 43. 
Bud and flower enemies—descript. (illusts. ) 
and remedies, i, 71-74. 
Conifers, hardy—descript. and treatment 
of insect pests oa, 1, 328. 
Fruit and seed enemies—descript. (illusts. ) 
and remedies, 1, 74-79. 
Leaf enemies—descript. (illusts.) and reme- 
dies, 1, 79-99. 
Protectors against slugs—pots, &c., for 
(illust.), i, 191, 192. 
Root enemies—descript. (illusts.) and reme- 
dies, i, 99-112. 
Sprayers for distribution of insecticides, 
a —illusts. and use of, i, 188; il, 40- 
of, 
Spring fruit-trees (see that title). 
Stem borers—descript. (illusts.) and reme- 
dies, 1, 112-114. 
[t'or special insect or pest, see its title; 
for insect pests, &c., of particular 
plant, fruit, or vegetable, see name of 
plant, fruit, &c.] 
Insect garden friends — (illusts.), 
script. and uses of, 1, 114-122. 
special insect, see its name.) 
Insecticides—sprayers for distribution of 
(illust.), 1, 188, ii, 40-42; application of 
on fruit-trees, li, 42, 43. (For remedy 
of special insect pest, &c., see name 
of insect.) 
Instruments— 
Garden tools, &c. (see title Tools and 
Instruments; special instrument, see 
its name). 
Meteorological—(illust. ),descript., manage- 
ment, and prices, 1, 21-25. 
Intermediate house —calendarial direc- 
de- 
(For 
tions for management of, 1, 2, 4, 6, 7, 
Gyles Tas 
Inula—species, &c., descript. and cult., i, 
362. 
iochroma—species, &c., descript. and cult., 
1, 537: 
Ipomoea — descript. and cult. of annual 
species, &c., 1, 392, of stove plants, 
1, 55I- 
Iresine—calendarial directions, i, 15; sum- 
mer-bedcing directions, i, 633, 635. 
Iris — marsh plants, descript., cult., and 
illust., i, 385, 386; popular garden 
plants—descript. and division of. genus 
into sections, i, 452, authorities on 
culture, i, 452, illusts. of garden at 
Kew and of flag and Spanish irises, 
i, 452, cultural “systems and lists of | 
best vars. (illusts.) of each section, 1, 
452-456; forcing sorts and directions, 
1, 626. 
587 
Iron essential to formation of the chloro- 
phyll of plants, i, 43. 
Iron sulphate solution— 
1, 130. 
Isolation and self-fertilization of plants to 
fix varieties, 1, 62. 
Isoloma, Tydza, and Negelia — con- 
fusion of genera in gardens, i, 456, 
descript., cult., and lists of vars., i, 
450, 457, illust. of Negelia, i, 457. 
a fungicide, 
| Isosoma orchidearum or I, Cattleye— 
descript. and treatment, i, 102. 
Isotoma axillaris—for summer-bedding, 
1, 635. 
Itea virginica—descript. and culkt., 
forcing directions, i, 623. 
Ivy— influence of light on growth, i a 32; cover- 
ing for arbours, &c., i, 276 ; descript. 
and cult. a vars., &c., 1, 304, Cape ivy 
ee ), 1, 542, winter- bedding forms, 
1, 647. 
Ixia— palendaccl directions, i, 19; descript. 
and cult. of, 1, 537- 
Ixiolirion—species, &c., descript. and cult., 
1, 362. 
Ixora—calendarial directions, 1, 4, 7, 10, 15; 
descript. and cult: of, i, 552. 
J 
Jackdaw—as garden friend, i, 117. 
Jacobea elegans—(see Senecio). 
Jacobinia—species, &c., descript. and cult., 
i, 552. 
Jacob’s ladder—descript. and cult., i, 370. 
Jacquemontia violacea—asa stove plant, 
1, 552. 
Jam-making—extent of industry, ii, 344, 
fruit suitable, directions, appliances 
(illusts.) and essentials for making j jam, 
li, 346-348, 358; routine work in a 
factory, ll, 346, 347; packing and stor- 
ing jam, li, 348. 
Jamesia americana—descript. of, i, 306. 
Japanese cedar—(illust.), descript. of, i, 
320. 
Japanese hops—descript. and cult., i, 3902. 
Japanese maples—descript. and cult., 1, 
529- 
Japanese persimmon — see Date plum). 
Japanese plums— (see title Plums and 
Damsons). 
Japanese water iris— oo ee and illust., 
1, 306, 
i, 385, 386, cult., 1, 452, 454. 
Japanese 4 nee ene of, i, 319. 
Jasione—species, descript. and cult., i, 363. 
Jasmine—(see Jasminum). 
Jasminum —calendarial directions, i, 11, 15; 
descript. and cult. of hardy species, &c., 
i, 306, of greenhouse shrubs, i, 537, of 
stove shrubs (illust.), 1, 552 , of 7. nudi- 
florum for forcing, i i, 623. 
Jelly-making — fruit suitable, directions 
and appliances for, ii, 340, 350. 
Jerusalem artichoke— illust.), descript., 
uses, directions for cooking and cult., 
ll, 449, 450; foreign names of, li, 
calendarial directions, ii, 532, 
packing, ii, 561. 
Jerusalem sage—descript. of, i, 312. 
Joss lily—cult. of, i, 472. 
Judas-tree—descript. of, i, 205. 
Juglans—hardy ornamental species, &c., de- 
script. of, 1, 306; cult. of J. regia illust. ) 
for fruit, ii, 257. 
Julus guttatus, J. a and J. 
. descript. and 
remedies, i, 106. 
Juncus spiralis, J. zebrinus—descript. 
and cult., 1, 386. 
June-berry—descript. of, i, 288. 
Juniper-tree—formation of sheqel 
angium on branch of (illust.), i, 12 
(See also Juniperus. 
Juniperus—species, &c., descript.and cult., 
i, 330, 331, for w inter-bedding, i, 647. 
Jussiza grandiflora—descript. oF i, 381. 
