of the book, as it was doubtful to us. Mr. Burnham's collection first 

 locates it definitely. Polyporus paluster is a pure white plant and dries 

 white. The surface is rather smooth, the flesh hard and the spores about 



Fig. 1014. 



3 x 10, are cylindrical, mostly pointed at both ends. It grows on 

 pine and is quite close to Polyporus albidus (on Abies) in Europe, but 

 differs as noted above, and chiefly in its larger spores. We are very 

 glad indeed to locate definitely another species in this puzzling white 

 Apus section. 



STEREUM SENDAIENSE, FROM PROF. A. YASUDA, 

 JAPAN (Fig. 1015). As named by Yasuda, I believe it is a good 

 species. I find nothing in 

 my photographs or notes 

 like it. To the eye it is the 

 same as Stereum membra- 

 naceum, a common plant of 

 the tropics, same color and 

 habits. But the "struc- 

 ture" is different. It has Fi ^- 1015 - 

 no metuloids. A section shows a very loose, hyaline basal layer on 

 which reposes a more compact and thicker, hyaline layer (the hyphae 

 bearing abundant conidia) and a thin, colored, hymenium layer. I 

 do not make out basidia nor spores. Surely the basidia are not in a 

 palisade layer like the usual Stereum. If some day it should turn 

 out to be an "Eichleriella" like Stereum Leveillianum I should not 

 be at all surprised. That is one advantage of modern classification, 

 no one but a basidial expert can tell the genera now with any security. 

 If one does not find basidia in his specimen, and on certain classes of 

 plants they are very difficult to find, he can no longer refer them to 

 a genus even. The old fellows w^ere not bothered with that, and the 

 new ones are having their troubles. Witness the case of Bresadola 

 with ' Radulum Kmetii" or Burt with "Septobasidium spongiosum" 



680 



