14 



Prof. W. D. Hoyt, Washington & Lee University, Lexington, 

 Va. 



Dr. Rudolph A. Konnerth, New York City. 



Dr. L. O. Overholtz, Pennsylvania State College, State Col- 

 lege, Pa. 



Mr. Frank H. Rossiter, New York City. 



Prof. T. G. Yuncker, De Pauw University, Greencastle, Ind. 



The resignation of Mr. Arthur H. Thomas, Haverford, Pa., 

 was read and accepted. 



The first paper of the scientific program was a discussion of 

 "Variation in Pedia strum'' by Professor R. A. Harper. The 

 speaker showed photomicrographs illustrating the range of 

 variation in several species of Pediastrum. The form of the cell, 

 though changing with age, is the most constant and dependable 

 character in determining species. The number of cells in a 

 colony is dependent on food and light conditions and colonies 

 that look as if they belonged to difi^erent species or genera may 

 be essentially the same when the characters of the individual 

 cells are considered. 



Dr. Marshall A. Howe, under the title of "Remarks on a 

 Collection of Chinese Algae," reviewed previous contributions 

 to the subject and reported upon a small collection of fifteen 

 species made at Peitaiho by N. H. Cowdry in 1919. This 

 collection includes what appears to be a new genus of red algae 

 and besides extending the list of known Chinese algae is of 

 interest on account of including several species that occur also 

 on the Atlantic coast of the LInited States. 



Dr. Arthur Hollick spoke of a "A New American Fossil 

 Hepatic, " showing the specimen, which came from Florissant, 

 Colorado, and an enlarged photograph. The organism, evidently 

 a bryophyte, was probably a member of the family Junger- 

 maniaceae, the first member of this family to l)e reported from 

 fossil remains in America. A new generic as well as a new 

 specific name was suggested. 



Dr. W. A. Murrill mentioned the fact that Efifoloma albidum, 

 a species originally described by him from Stockbridge, Mass., 

 had been reported by Dr. H. D. House as the cause of violent 

 illness when eaten by a family of five in Albany, N. Y., late in 

 August, 1921. Specimens had been submitted to Dr. Murrill 

 for identification. Entoloma lividiim, of Europe, is dangerously 



