388 
Pruning — continued 
neglected wounds, 111; time for, 
111; for scales, 151, 153, 1555 
while transplanting, 169, 171; for 
form out of place in forest, 189; 
shrubs, 325 
Prunus, Cherries, Peaches, Plums, 
212, 302~306, 366, 368, 369, 371; 
72 
Psondolarix, Golden Larch, 210, 213, 
229, 2307; see also Larix 
Pseudotsuga, Bastard Hemlock, 210, 
228; see also Douglas Fir; Tsuga 
Pulse family, Acacia, 210, 247, 249; 
Albissia, 24.7, 249; Gleditschia, 210, 
247, 249, 365; Robinia, 211, 247, 
248, 305 
Purple Fringe, Rhus, 262 
Pyrus, time for pruning, III 
Prussiate of potash, 126 
Pumps, see Spraying machinery 
Pyrenees, 240 
Quercus, Oak, 213, 228, 306-309, 
310," 311," 312," 313, 364-366, 
371, 372 
Quick lime, see Lime 
Quince, 294 
Quince, Japanese, Pirius, 297 
Racemes, 324 
Ragweed, 37 
Raupenleim, 145 
Rear-horse, see Walking-stick 
Recuperative power, 26-28, 32, 36, 
171, 172, 201, 306 
Red Bud, Cercis, 111, 211, 280, 367 
Red Gum, Liguidambar, 212, 288, 
305 
Red Osier, 283 
Redwood, Sequoza, 210, 215, 222 
Resin, covering a wound, 91, 92, 166 
Respiration, importance of, 20; 
affected by season, 34 
Retinspora, see Chamecyparis 
Reversion to type, 208 
Rhamnus, Buckthorn, 213, 313, 314, 
368, 369, 372 
Rhododendron, 60, 175, 192, 228, 
277, 203, 328, 331, 334-336, 365, 
368, 370, 372 
Rhodora, 330 
Rhodotypus, 328, 348 
Index 
Rhus, Sumach, 211, 261, 262, 368, 
379-372 
Rives, Flowering Currants, 328, 362, 
363, 368, 369, 371, 372 
Road system of the forester, 187 
Rock gardens, shrubs for, 373 
Root-hairs, 17, 168, 172 
Root-lice, 151 
Root pests, see Cutworms; Wire- 
worms; Clicking-beetles; Phyl- 
loxera 
Root rot, 43, 56, 128 
Root stock, how to kill, 50 
Root system, development, 15; 
types and characteristics, 16; 
root-hairs, 17; relation to foliage, 
18, 19, 27; respiration, 20; adap- 
tation to change, 20; requisites 
for life, 21; annual rejuvenation of 
rootlets, 29; conditions in city 
streets, 33; insect injury to, 49; 
conditions causing disease, 52; 
loss by winter-killing, 66; effects 
of gas leakage, 70; injury by gra- 
ding, 80; equilibrium between root 
and crown necessary, 82; pruning 
crown to balance with, 99; injury 
in transplanting, 168, 169; advan- 
tage of nursery stock, 170; shrubs, 
323 
Rosa, Rose, 325, 328, 348, 349, 367, 
368, 370-372 
Rose, Rosa, 325, 328, 348, 367, 368, 
370-372; Memorial, 349; Native 
Wild, 349; Prairie, 349 
Rose family, ROSACEAE, 347; see 
also Spirea 
Rose of Sharon, Hibiscus, 361 
Rosemary, Wild, Andromeda, 330 
Rot, 31, 37, 51, 86, 112; see also 
Root rot 
Rot fungi, 40, 55 
Rowan Tree, Sorbus, 263 
Rowan Tree, Virburnum, 341 
Russian Olive, Ele@agnus, 342 
Rusts, 37 
st. John’s Wort, Hypericum, 327 
301, 368-372 
St. Louis, smoke nuisance in, 70; 
Forest Park, 186 
Salix, Willows, 213, 314-316, 365, 
371 
