180 



Mycologia 



4. Family Hydnaceae 



72. Hydnam ochraceum Pers. 



On Douglas fir stump, Corvallis. August. Frequent. No. 1806. 



73. Hydnum erinaceus Bull. 



On Douglas fir log, Philomath. October. Frequent. No. 2135. 



74. Hydnum auriscalpium Linn. 



On cones and needles of Pseudotsuga taxifolia, Corvallis. November 

 to January. Frequent. Nos. 2138, 2221. 



75. Hydnum repandum Linn. 



In open woods, various localities in western Oregon. November. 

 Frequent. Nos. 2136, 2193. 



The western plants are a deeper orange than the pale buff plants I 

 have collected in the middle west. 



76. Hydnum subfuscum Peck. 



On coniferous bark, Mary's Peak trail. October. Frequent. No. 1724. 



77. Echinodontium tinctorum Ellis. 



A resupinate specimen found on Abies grandis, Corvallis. April. 

 Frequent. No. 1912. 



78. Irpex lacteus Fries. 



On cherry stumps or causing heart rot of living trees from large 

 pruning cuts. Fall and spring. Frequent. No. 1824. This is the most 

 common heart rot of sweet cherry in western Oregon. 



79. Odontia fragilis Karst. 



On oak, Corvallis. August. Infrequent. No. 1848. 



80. Radulum Owensii Lloyd. 



On oak, Corvallis. March and April. Frequent. Nos. 1907, 1932. 



5. Family Boletaceae 



81. Boletus chrysenteron With. 



In mixed woods, Corvallis. Comes with the early fall rains and per- 

 sists until November. Common. .. 



82. Boletus luridus Schaeff. 



Under conifers, Oregon Agricultural College campus, Corvallis. . Sep- 

 tember. Infrequent. No. 2058. 



Although this plant has been reported from Washington and California, 

 it had no~t previously been reported from Oregon. 



83. Boletus luteus Fries. 



Under conifers, Oregon Agricultural College campus, Corvallis. No- 

 vember. Common. No. 2035. This is a very common plant from early 

 fall until the first freeze. It is always to be found under conifers in 

 season. 



84. Boletus scaber Fries. 



Under various- frees, Oregon Agricultural College campus, Corvallis. 

 September. Infrequent. No. 2059. 



If this were to be referred to one of Peck's varieties it perhaps would 

 come nearest to fuligineus. Variety testaceus has also been observed in 

 this locality. 



