ben 
4. BULLETIN 1262, U. S. DEPARTMENT OF AGRICULTURE. 
developed during storage several large yellow-colored mushrooms, 
tentatively determined as a species of Pholiota. Later, a block of 
the rotted wood was placed in the humidity room and kept moist. 
In about a month several typical sporophores of Pholiota adiposa 
were produced (Pl. II). Typical sporophores have also been pro- 
duced on malt-agar cultures. 
The third lot of infected logs consisted of a carload shipment of 
Douglas fir (Pseudotsuga taxifolia) and incense cedar (Libocedrus 
decurrens) shipped by Dr. J. S. Boyce from Oakridge, Oreg. The 
Douglas fir logs contained rots caused by 7’rametes pini, Polyporus 
schweinitzii, and Fomes laricis. The incense-cedar logs contained 
the rot caused by Polyporus amarus. The shipment consisted of 32 
logs each 16 feet long, the total scaling 7,790 feet, board measure. 
A few logs of Alnus oregona, intended for pulping experiments 
but rejected when found infected with Polystictus hirsutus and Poly- 
stictus versicolor, were also used in the study, as well as some miscel- 
laneous material listed on the following pages. 
List of fungi and hosts. 
Shipment from Port Edwards, Wis. : 
Polystictus hirsutus Fr. in northern white spruce (Picea canadensis ( Mill.) 
ype dee 
Polyporus anceps Pk. in northern white spruce. 
Lenzites sepiaria Fr. in northern white spruce. 
Trametes carnea Nees. in northern white spruce. 
Polystictus abietinus Dicks. in northern white spruce. 
Trametes pini (Thor.) Fr. in northern white spruce. 
Fomes pinicola Swartz in northern white spruce. 
Miscellaneous material: 
Polyporus anceps Pk. Murr. in western yellow pine (Pinus ponderosa 
Laws.). 
Polystictus hirsutus Fr. and P. versicolor lr. in red alder (Alnus oregona 
Nutt.). 
Blue stain in Liquidambar styracifiua L. 
Aliernoria sp. in Pinus rigida Mill. 
Trametes pint in Pinus banksiana Lamb. 
Shipment from Neopit, Wis.: 
Trametes pini in larch or tamarack (Larig laricina. (Du Roi) Koch). 
Brown cubical rot in white pine (Pinus strobus L.). 
Ceratostomella pilifera Fr. and Torula ligniperda, (Willk.) Sace. in white 
pine. 
Brown cubical rot in northern white cedar (Thuja occidentalis L.). 
Blue stain in northern white cedar. 
Brown ring-rot in northern white cedar. 
Fomes pinicola in hemlock (Tsuga canadensis (L.) Carr.). 
Torula ligniperda (Willk.) Sace. in hemlock. - 
Brown cubical rot in hemlock. 
Ganoderma tsugae Murrill in hemlock. 
Fomes fomentarius Fr. in paper birch (Betula papyrifera Marsh.). 
Fomes igniarius (l.) Gillet in white elm (Ulmus americana L.). 
Trametes pini in white pine. 
Brown cubical rot in northern white cedar. 
Fomes igniarius in red maple (Acer rubrum L.). 
Trametes pins in larch (Larix laricina). 
Pholiota adiposa Fr. in basswood (Tilia americana L.). 
Polyporus borealis in sugar maple (Acer saccharum Marsh.). 
Shipment from Oakridge, Oreg. : 
Trametes pini in Douglas fir (Pseudotsuga tarifolia (Lam.) Britt.). 
Polyporus amarus Hedg. in incense cedar (Libocedrus decurrens Torr.). 
Polyporus schiweinitzii Fr. in Douglas fir. 
Fomes laricis (Jacq.) Murr. in Douglas fir. 
