100 



Mycologia 



albellus on Abies grandis, Polyporus elegans on Tsuga hetero- 

 phylla, Schizophyllum commune on Tsuga heterophylla, Trametes 

 carnea on Arbutus Menziesii, Trametes hispida on Pseudotsuga 

 taxifolia, Trametes serialis on the aspen, and Trametes varii- 

 f or mis on Betula occidentalis. 



Two very important matters discussed at the recent scientific 

 meetings at Pittsburgh were: (i) the problem of disease control 

 in order to increase crops, and (2) the establishment of a Botan- 

 ical Abstracts Journal. The first has been taken up with zeal by 

 the phytopathologists under Professor H. H. Whetzel, and the 

 second is in the hands of a representative committee, which hopes 

 to begin such a journal this year, under the editorship of Pro- 

 fessor B. E. Livingston. Of the one thousand scientists in at- 

 tendance at Pittsburgh, about two hundred were botanists. 



Sparassis radicata is a new species described by J. R. Weir in 

 the June number of Phytopathology from Idaho, where it occurs 

 parasitically on the roots of several western conifers. This 

 species is chiefly distinguished by its thin lobes and an unusually 

 large perennial rootstalk, which is of the nature of a sclerotium 

 and from which new sporophores are developed from year to 

 year. The mycelium attacks the bast of the roots and later the 

 wood, producing a yellow or brown, carbonizing rot. The species 

 has been found in British Columbia, Washington, Oregon, Idaho, 

 and Montana. 



It is reported by Trumbull and Hotson in the December number 

 of Phytopathology that the very attractive forestry building of 

 the Alaska-Yukon-Pacific Exposition at Seattle, which was built 

 of green logs of Douglas fir and western hemlock, has been 

 seriously attacked by Pomes ungulatus, and that many of the 

 sporophores of this fungus have appeared on the logs used in the 

 building. A heating system was installed to dry the timbers and 

 impregnation of the wood with fungicides was tried, but without 

 result. Roentgen rays were then experimented with, but the 

 effects observed on the fungi were negative. 



