278 
GENERAL INDEX. 
Honeysuckles, planted in masses, and kept 
dwarf, 138 
Hovea ilicifolia, 262 
— trisperma, 94 
Humus, in soils, increase of, 230, 249 ; nature 
of its offices, in the nutrition of plants, 249 ; a 
source of carbonic acid, 250 
Hybridization, theory of, 202 
Hydrangea hortensis, suitable for planting in 
groups, 138 
— japonica, 262 
— several species of, 262 
I. 
Impregnation of seeds, philosophy of the, 202 
Indian azaleas, different ways of treating, 160 
Indian-cress, Mr. Lobb's, 271 
Inflorescence, structure and economy of, 201 
Inga pulcherrima, 147 ; suitable mode of cul- 
ture, 148 ; sensitive properties of the leaves 
of, 148 
Ipomsea crassipes, 43 
— Hardingii, 217; how to obtain good 
specimens of, 218 
— Krusensterni, 213 ; 
Isochilus carnosseflora, 213 
Ixora acuminata, 190 
J. 
Jacaranda mimossefolia, 151 ; most approved 
plan of management, 152 ; to obtain dwarf 
flowering specimens of, 152 
Juanulloa parasitica, 236 
Justicia venusta, 213 
Justicia JlavU} 210 
K. 
Kalmia latifolia, eligibility for planting in 
groups, 138 ; for standards, 19 
Kennedya monophylla, var., 94 
L. 
Lacuna bicolor, 211 
Lacticiferous tissue, office of, 107 
Lselia majalis, 140 
— peduncularis, 165 
— superbiens, 97 ; way to treat, 98 
Lateral growths, the necessity of removing 
them early to obtain upright developments, 
17 
Laurestinus, as a standard shrub, 19 
Layering, a means of inducing dwarfness, 41 
Leaves, structure of, 81 ; venation of, 84 ; 
functions of, 153, 177, 251 ; substances pro- 
duced in, 153 
Lepanthes sanguinea, 211 
Leucocoryne alliacea, 101 ; its culture, 101 
Leucothoe floribunda, valuable for planting in 
masses, 138 
Lime, in its natural state, 228 
Lindleya mespiloides, 116 
Linum trigynum, 51 
Liquid manures, hints concerning, 111 
Lisianthus glaucifolius, 238 
Lissochilus macranthus, 43 
Lissochilus roseus, 43 
Loam, description of, 228 ; formation of, 228 ; 
requisites in, 186; to improve the texture 
of, 185 
Loasa lucida, 214 
Lobelia fulgens, var., 214 
Loeselia coccinea, 238 
— Mexicannm, 238 
Lomatia tinctoria, 211 
Lonicera diversifolia, 140 
Loudon, the late Mr., 48 
Luculia gratissima, method of treating, 231 ; 
severe pruning recommended for, 232 ; 
cultivation in pots, 232 ; in conservatory 
borders, 233 ; wood-ashes and charcoal use- 
ful to, 234 
Lupines, observations of the treatment of a 
few species of, 179 ; planted in masses, 180 ; 
as isolated specimens, 181 
Lupinus arvensis, 43 
— pubescens, 214 
Luxemburgia ciliosa, 3 ; treatment required 
by, 4 
Lycaste Skinneri, 1 ; its management, 2 
— a new species of, 142 
M. 
Macleania longiflora, 117 
Mahonia aquifolia, for winter gardens, 254 
Mammillaria tetracantha, 23 
Manures, on economising, 108 ; on their use 
in a liquid state, 111; nature and offices of, 
249 ; hints on the period of applying, 259 
Martynia lutea, 149; suggestions on culti- 
vating, 150 
Mechanism of plants, each portion per- 
fect, 178 
Medullary processes, origin of, 36, 131 
Melastoma sanguinea, 238 
Microstylis histionantha, 187 
Mignonette, trained as a standard shrub, 1 9 
Miltonia cuneata, 70, 94 
Minorca Box, for small flower-beds in winter, 
253 
Morina longifolia, 141 
Morphology disclaimed, the doctrine of, 201 ; 
its groundless principles, 204 
Myosotis Azorica, 263 
— palustris, for flower-beds, 113 
N. 
Natural mode of training Climbers, 207 
Nelurabium Caspicum, 91 
Nematanthus chloronema, 91 
Neottia speciosa, 46 
Nephelium longan, 165 
Nerium oleander, var. Rayanot, 53, 96 ; way 
to treat it, 54 
Nolana, a new species of, 190 ; see Alona 
Novelty, the desire for, and effects of in gar- 
dening pursuits, 15 
Nutrition of plants, the philosophy of the, 227 
Nymphsea rubra, 190, 266; causes of failure in 
cultivating, 267 
