Zeller : Contributions to Oregon Fungi 



179 



63. Coniophora cerebella Pers. 



This very active wood-destroying~brganism was found near Philomath, 

 on the charred bark of Thuja plicata, Pseudotsuga taxifolia and Tsuga 

 heterophylla. Although known from Washington and California Coni- 

 ophora cerebella has not been previously reported from Oregon. Nos. 

 1795, 1796, 1797. 



64. Cyphella marginata McAlpine. 2 



On twigs of peach, apple and almond, Marion, Benton, and Douglas 

 Counties. May to July. Frequent. Nos. 1830, 1831, 1922, 1940, 2102. 



Previously this fungus has been reported from Australia only. There 

 is no record of the importation of nursery stock which would carry this 

 fungus from Australia into Oregon. The fungus is inconspicuous and is 

 perhaps of little, if any, economic importance. In Australia McAlpine 

 observed this fungus on dead twigs of peach but in Oregon it is abundant 

 on " die-back " twigs of peach and apple and has been found in one 

 locality on almond. The cupules are minute', resembling fuzzy, gray or 

 ochraceous goblets. They are peziza-like in appearance, about 0.5-1 mm. 

 in diameter. 



65. Peniophora glabra (B. & C.) Burt. 



On Douglas fir, Corvallis. September. Infrequent. No. i860. 



66. Peniophora glebulosa Bres. 



On decayed wood in mixed woods, Corvallis. August. Infrequent. 

 No. 1813. 



67. Peniophora incarnata (Fries) Cooke. 



On oak, Corvallis. March. , Infrequent. No. 1906. 



68. Peniophora cinerea Fries. 



On alder, Philomath-Alsea road on Alsea Mountain. November. In- 

 frequent. No. 2230. 



69. Hymenochaete spreta Peck. 



On alder and Douglas fir, Corvallis. August and February. Infre- 

 quent. Nos. 1852, 1896. 



70. Aleurodiscus subcruentatus (B. & C.) Burt. 3 



On Pseudotsuga taxifolia and Abies grandis, Corvallis. August and 

 September. Frequent. Nos. 1722, 1809, 195 1. 



According to Dr. Burt this was " described from a collection made in 

 Japan about 60 years ago by the U. S. Northern Pacific Exploring Ex- 

 pedition." Since the publication of his monograph of the genus Aleuro- 

 discus he has " received Oregon collections and collections from Japan 

 and California. This is not recorded as turning up before since the 

 original collection." 



71. Aleurodiscus amorphus (Pers.) Robh. 



On fir bark, Corvallis. November. Frequent. No. 1791. 



2 McAlpine, D. Fungous diseases of stone-fruit trees in Australia 120- 

 122. 1902. 



s Burt, E. A. Thelephoraceae of North America. XII. Stereum. Ann. 

 Mo. Bot. Gard. 7: 237. 1920. 



