yellow, which one would hardly suspect from the dried specimen, 

 for they become brownish with age. Though quite familiar with 

 museum specimens, I did not recognize it at first and the only time I 

 ever collected it. The distribution is peculiar, fairly frequent in 

 Europe, absent from the United States, and it occurs in Japan. Fomes 

 odoratus is generally known as Trametes odorata, and the reasons for 

 the change are stated under Fomes "Trametes" below. 



Illustrations. There is no good colored plate. Schaeffer, t. 106, is supposed to represent it; 

 but if so, very poor. 



Specimens. A number from Europe. None from the United States. One from Japan, J. 

 Umemura. 



NOTE. Trametes odora is an unfortunate name in our literature, for it is liable to be confused 

 with a real name, "Trametes" odorata. Trametes odora is supposed to be white, and similar to 

 Trametes suaveolens. excepting in having minute pores. It is current in the traditions of England 

 and W. G. S. measured its spores, but I doubt if any one ever saw a specimen. Patouillard also gives 

 a drawing of it with white context and brown pores. It requires more faith than I have to believe 

 that there is any such species. 



SECTION 70. CONTEXT BROWN. SPORES HYALINE. SETAE PRESENT. 

 FOMES PUTEARIUS. Pileus thin, conchate, with deep brown 

 surface lighter on the margin. Often it is resupinate or with reflexed 

 margin. Context color, light brown. Pores minute, concolorous. 

 Setae slender. Spores hyaline, globose, 6-7. 



Fig 607. 



Wood rot caused by Fomes putearius. 



This is very close to Fomes conchatus, so close that I was at first 

 dubious as to its difference. It differs, however, in its host and it 

 produces an entirely different "rot." The spores slightly larger, the 

 spines fewer, and the surface with a slight resinous appearance. It 

 is known only from our Western States on various species of acerous 

 trees. It produces a characteristic rot (Fig. 607) full of pockets. It 

 was named and figured in J. A. R. Vol. 2, 1914, by James R. Weir. 



SECTION 70. FOMES "TRAMETES." 



There are two perennial species which have been classed (in error) in Trametes 

 that should be transferred to Fomes. These are the two species generally known as 

 Trametes pini and Trametes odorata. We dislike to propose a name change for 

 plants as well established and as generally known as Trametes pini, but as they are 

 classed as Trametes from a mistaken idea of their characters, they should be cor- 

 rected. Fries had the impression that they did not. have stratified pores "sed nulla 

 strata distincta," and for that reason put them in Trametes. This is a mistake. 

 The pores are as distinctly stratified as any other Fomes (Fig. 608), and there is no 

 reason why they should not be classed as Fomes. 



274 



