96 



Mycologia 



February 3, 19 10. Several new genera and new species are 

 published in this part. 



Professor Bruce Fink, of Oxford, Ohio, has begun a study of 

 the Graphidaceae, and wishes to see as much newly collected 

 material from tropical regions as can be secured. He would be 

 glad to receive such collections for determination or to corre- 

 spond with collectors in any tropical or subtropical regions. 



Some Problems in the Evolution of the Lower Fungi " 

 (Annales Mycologici 7: 441-472. 1909), by Professor G. F. 

 Atkinson, recently appeared as Publication 43 of the Botanical 

 Society of America, being the address of the retiring president 

 delivered at the Baltimore meeting in 1908. The author ad- 

 vances a number of strong arguments in support of the theory 

 that the lower fungi are derived from unicellular organisms, 

 either colorless or chlorophyll-bearing, rather than from the 

 confervoid or siphonaceous algae. 



Dr. W. A. A/[urrill returned from Mexico January 29 with 

 2,000 specimens of fleshy and woody fungi, collected at various 

 elevations from the vicinity of Cordoba and Jalapa on the east 

 to Colima and Tecoman on the west. Accompanying the col- 

 lection are 120 colored illustrations of the more perishable 

 species, drawn by Mrs. Murrill. Many interesting original 

 photographs were also secured. A full account of this expedi- 

 tion will appear in the Journal of the Garden for March. 



The gray squirrels in the Hemlock Grove have found the 

 severe winter very trying without their accustomed store of 

 chestnuts. Mr. E. W. Humphreys recently observed one of 

 them making a meal on Stereum hirsutum, a leathery fungus 

 occurring commonly on dead wood, which would seem unpalat- 

 able to the last degree. During the summer, squirrels are very 

 fond of species of Russula, and other fleshy forms appearing 

 on the forest floor, and red squirrels in Alaska have been known 

 to carry fleshy forms into the trees and preserve them for 

 future use ; but I believe this is the first instance recorded where 

 a tough form like Stereum has been so used. 



