176 MISCELLANEOUS PUBLICATION NO. 725, U.S. DEPARTMENT OF AGRICULTURE 
Pinus elliottii--SEE Pine, slash 
Pinus jeffreyi--SEE Pine, 
Jeffrey 
Pinus lambertiana--SEE Pine, 
sugar 
Pinus peuce--SEE Pine, Balkan 
Pinus ponderosa--SEE Pine, 
ponderosa 
Pinus ponderosa var. scopu- 
lorum--SEE Pine, Rocky 
Mountain ponderosa 
Pinus pumila--SEE Pine, Japa- 
nese stone 
Pinus resinosa--SEE Pine, red 
Pinus rigida--SEE Pine, pitch 
Pinus strobus--SEE Pine, east- 
ern white 
Pinus sylvestris--SEE Pine, 
Scotch 
Pinus taeda--SEE Pine, loblolly 
Pinus virginiana--SEE Pine, 
Virginia 
Pinyon blister rust, 884 
fungus--SEE Cronartium 
occidentale 
resistance, ribes, 695, 696, 
698 
Planera aquatica--SEE Planer- 
tree 
Planertree 
Ceratostomella ulmi, 
Planetree 
canker stain, 507, 1087, 
1333, 1474, 1550, 2094, 
Z095;, 2097, 2096) 2009, 
2103,"Z105> 2100, 2rur 
fungus--SEE Endoconidio- 
phora fimbriata f. platani 
transmitted in wound 
dressings, 2104 
SEE ALSO UNDER Planetree, 
London, and Sycamore 
diseases, 1088, 1099, 1100 
wound dressings, 2096 
Planetree, London 
bacterial infection and decay 
following winter injury, 365 
canker stain, 192 
SEE ALSO UNDER Planetree 
and Sycamore 
rosy canker, 1357 
Platanus--SEE Planetree and 
Sycamore 
Platanus x acerifolia--SEE 
Planetree, London 
Pleurotus ostreatus, 1556 
Plowrightia morbosa, 2149 
1739 
Plunkett; ©. “Al T2702 
Plywood 
decay resistance, 488 
delamination by molds and 
bacteria, 272 
Poles 
decay, 1048 
preservation, 2038 
use of blight-killed chestnut, 
1480 | 
Polyembryony 
Arceuthobium spp., 2152 
Polyporaceae, Montana, 2173 
Polyporus amarus, 106 
new species, 846 
Polyporus anceps, 21], 22, 24, 
255 26 
Polyporus berkeleyi, 2147 
Polyporus carneus, 2026 
Polyporus dryadeus, 1230, 1231, 
1258,-'2189 
Polyporus dryophilus, 909 
Polyporus ellisianus--SEE 
Polyporus anceps 
Polyporus farlowii, 1268 
Polyporus fraxinophilus, 2043 
Polyporus glomeratus, 241, 242 
Polyporus guttulatus, 401 
Polyporus hispidus, 1731 
Polyporus juniperinum, new 
species, 2026 
Polyporus nigricans, 240 
Polyporus obtusus, 1768, 1796 
Polyporus paragamenus, 
biology, 1552 
Polyporus pini-ponderosae, 
new species, 1246 
Polyporus pseudo-sulphureus, 
new species, 1246 
Polyporus rigidus, 1261 
Polyporus rimosus, 2027 
Polyporus schweinitzii, 123, 
264, 546, 886, 2137, 2190, 
2274a 
Polyporus spraguei, 2199, 2204 
Polyporus tulipiferus, 1579 
Polyporus versicolor 
carbon dioxide production, 
1649 
temperature, effect, 1649 
wood properties, effect, 1648 
Polystictus, decay in living 
trees, 2197 
Polystictus versicolor, 1678 
Poplar (and hybrids) 
Cytospora canker, 1247 
diseases, Europe, 636 
