Notes and Brief Articles 177 



somewhat poroid and otherwise abnormal. This peculiarity is 

 often exhibited by Tricholoma personatum and certain other wild 

 agarics. 



Dr. C. L. Shear visited the Garden on February 3 to consult the 

 library and mycological collection. He then went with Professor 

 J. C. Arthur to Philadelphia to examine the Schweinitz collection 

 of fungi to determine how it might be made more available to 

 American mycologists. Dr. Shear and Dr. Arthur are members 

 of a committee appointed for this purpose by the American 

 Phytopathological Society. 



Mel T. Cook and G. W. Wilson have been investigating the 

 effect of tannin on the growth of the chestnut canker fungus and 

 they find that 0.8 per cent, or more causes a retardation of 

 germination, which is frequently followed by an abnormal stimu- 

 lation of the growth of the aerial mycelium. It was found that 

 tannin is utilized by Endothia parasitica, the fungus being able to 

 remove as much as 2 per cent, from the substratum. 



Professor Ellsworth Bethel, of the State Museum, Denver, 

 Colorado, has recently sent in a specimen of Scutiger crypt opus, 

 which is the first I have seen from Colorado, the species having 

 been found heretofore in Kansas and Nebraska, attached to dead 

 grass roots in sandy pastures. The specimen sent by Professor 

 Bethel grew in a field at Boulder, Colorado. Other specimens 

 sent at the same time included Lentodium squamosum, Polyporus 

 elegans, and P. arcularius. 



Mr. E. D. Merrill; of the Bureau of Science, Manila, has re- 

 cently sent to the Garden 'specimens of Pachyma hoelen Fries, 

 purchased in a Chinese drug store in Hongkong by Mr. Tutcher, 

 Director of the Hongkong Botanic Garden. This fungus is ex- 

 tensively cultivated on pine trees in central China. The follow- 

 ing description by Fries was based on Hoelen of Rumphius, which 

 was described from Chinese specimens. 



" 3. Hoelen. Sinensium. Oblongum, cortice rugoso, extus in- 

 tusque sordide flavescens. 



