141 



antheridia and oogonia on different plants are spoken of as "dioeci- 

 ous homothallic" while on page 21 Phacotus is described as a 

 "colourless unicell." It is highly doubtful that any motile cells of 

 Botrydium have only one flagellum as they are figured in 83b. It is 

 regrettable that Juller's (1937) important work on Stigeoclonium 

 is not referred to in the discussion of that genus, nor is it considered 

 in the general discussion of life cycles in the Chlorophyceae. 



The last chapters on ecology and geographical distribution of 

 algae represent more or less of an innovation in phycological texts 

 in English, and the author is to be congratulated for having intro- 

 duced this material as well as a discussion of aspects of algal 

 physiology. Finally, the analysis of the derivation of the generic 

 names of the types described will be a helpful feature to many stu- 

 dents. Harold C. Bold 



Barnard College, 



Columbia University 



FIELD TRIPS OF THE CLUB 



Trips of April 26 to Bush kill Falls, Pennsylvania 



Thirteen members and guests of the Torrey Botanical Club 

 gathered at Bushkill Falls in the soft haze of an unusual morning 

 that in its warmth seemed like midsummer, but in its fragrance and 

 in the delicate green tracery of the new leaves it was definitely a 

 morning of early spring. Only the red maples in the low wet 

 grounds and the oaks on the drier hillsides faintly echoed the final 

 fanfare of the reds of autumn in the color of their expanding buds. 



The group was honored this year by the presence and participa- 

 tion of Dr. Fulford, who contributed much to the study of the rich 

 Bryophyte flora of this area. 



Many of the liverworts and mosses have been found and re- 

 corded on previous Torrey Club trips to this region (Torrey a 

 40: 175-177; 41: 136-137). However, each year additional species 

 are collected, and a thorough search would undoubtedly yield very 

 many more. We had never identified Frullaria Asagrayana, with its 

 midrib-like ocelli, before; nor had we ever noticed the common 

 Chiloscyphus riviilaris, which was growing in great abundance in 

 one of the small tributary streams. Not far away, also flourishing, 



