386 
Mountain Fetter-bush, Pieris, 328, 
333 
Mountain Rose Bay, Rhododendron, 
5 
Mourning Cloak, 163 
Mulberry, Jforius, 212, 291 
Mulching, 67, 77, 80, 175, 177, 334 
Mullein, 325 
Murrill, A. W., on “Shade Trees,” 
117 nole 
Muriate of potash, 149 
Mycelium, 41-43, 56, 112, 124; See 
also Fungi 
Myrica, Wax Myrtle, 328, 362, 
369-373 
Nannyberry, Viburnum, 340, 366 
Nason, Prof. F. L., referred to, 145 
role 
National parks, 186 
Needle-shaped leaves, see Coniferous 
trees 
Neillia, see Spirea 
Nettle Tree, Celézs, 211, 279, 365 
New York State, winter of 1903-04, 
66; Forest Preserve of, 186 
Nitrogen, deficiency in soil, 62, 79 
Nomenclature, 207, 208 
North American species, number of, 
202 
Nozzles, 139, 147 
Nursery stock, 169, 209 
Nuthatches, 130 
Nyssa, Tupelo, 212, 291, 371% 
Oak, Quercus, 16, 59, 65, 85, I12, 
154; 150, 162-164, 172, 192, 193, 
213, 228, 306, 371, 372; Basket, 
308; Black, 307-309, 365; Bur- or 
Mossy-cup, 308; California, 310, 
366; Chestnut, 308; Chincapin, 
311, 366; Cow, 308; English, 310,* 
312, 366; Italian, 312,* 313; Live, 
307; Over-cup, 308; Pin, 309, 371} 
Post, 308; Quercitron, Red, 308, 
364, 365; Rock, 308; Scarlet, 300, 
364; Scrub, Bear, 311, 366; Shingle, 
309, 365; Spanish, Willow, 300, 
371; Swamp, 61, 308; Turkey, 
311,* 313; Water, 309; White, 
307, 371; Yellow Chestnut, 308 
Oak-carpenter, 163 
Oak-pruner, 154 
Index 
Old age in trees, 121 
Olea, see Osmanthus 
OLEACEAE, Olive family, 341, 365 
Olive family, OLEACEAE, 341 
Opulaster, see Spirea 
Orange trees, 151 
Oregon Pine, 228 
Ornamental planting, 198 
“Ornamental Shrubs,” by L. DN. 
Davis, quoted, 326, 333 
Ornamental trees, values, 200, 202; 
in Washington, 206; foliage, 207; 
classification, 207; see also Lawn 
trees; Shade trees; Street trees; 
and Lists, pp. 365-373 
Orthoptera, 150 
Osage Orange, Toaylon, 213, 320 
Osmanthus, 212, 291, 366, 370 
Osmosis, 18 note 
Osirya, Hop Hornbeam, Ironwood, 
212, 293, 365, 367 
Outlines of trees, 204 
Oxydendron, Sorrel Tree, 212, 293 
Oxygen, see Air 
Pagoda Tree, Sophora, 263 
Palm trees, 8 
Paradise Apple, Pirus, 295 
Paradise Plant, Daphne, 358 
Parasites, causes of disease, 32, 37, 
44; see also Fungi; Insect pests; 
Mistletoe 
Paris, tree guards in, 83, 118, 110, 
121 
Paris Green, 127, 135, 137, 147, 148, 
153, 155, 164 
Park, Woodland, versus pleasure 
park 188; location, outline, 
composition, 190; classification of 
species in, 192; permanency, 193; 
selection of materials, 194, 198; 
dealing with insect pests, 195 
Park planting, degrees of light in- 
tensity needed, 25 
Parks, see Adirondack Forest Pre- 
serve; Bronx Park, N. Y. City; 
Forest Park, St. Louis; Soldiers’ 
Home, Washington 
Parry, nurseryman, 243 
Paulownia, 212, 293 
Paul’s Double Scarlet Hawthorn, 285 
Pea, type-shape, 325 
Pea family, LEGUMINOSAE, 345 
