II 



In the sloughs themselves, Scirpus olneyi A. Gray (fourteen 

 to eighteen atmospheres), Juncus balticus Willd., Eleocharis 

 palustris (L.) Roem. and Schultz, and Scirpus paludosa A. Nels., 

 are conspicuous. Small areas of the grass Phragmites communis 

 Trin. (about eighteen atmospheres) are found near the margin of 

 the densely vegetated areas, and extend as very dwarfed in- 

 dividuals into the moister saline and largely sterile surrounding 

 areas. Where the salinity of the soil has been much increased 

 by evaporation, the salt-grass Distichlis spicata (L.) Greene and 

 some other grasses occur. 



The extremely limited area occupied by T. angustifolia in 

 this locality may be due to its inability to compete under the 

 conditions of this habitat with Scirpus, Juncus and Eleocharis or 

 it may indicate a recent and successful introduction in regions in 

 which conditions are not generally suitable for its growth. T. 

 angustifolia is typically a brackish water form often found in 

 maritime rharshes. It is interesting to note that the very 

 dwarfed plants of this colony had an osmotic concentration of 

 their tissue fluids of about fifteen atmospheres, whereas collec- 

 tions of T. latifolia taken in water of lower osmotic concentration 

 (about 1.2 atmospheres) in high valley marshes near Moroni, 

 Utah, had an osmotic concentration of their leaf tissue fluids 

 of about ten atmospheres. 



University of Minnesota, 

 Minneapolis, Minn. 



PROCEEDINGS OF THE CLUB 

 Meeting of October 27, 1926 



The meeting was held at the Museum Building of the New 

 York Botanical Garden. The minutes of the meeting of October 

 12 were read and approved. The following were elected to 

 membership in the Club : 



Mrs. Inez M. Haring, Woodland, Ulster Co., New York. 



Mr. Samuel Hirschberg, 1215 42 St., Brooklyn, New York. 



Mr. Edward D. Lehrer, 1519 55 St., Brooklyn, New York. 



After some discussion it was unanimously voted that the 

 last monthly meeting in November, on the Wednesday before 

 Thanksgiving Day, be omitted, and a committee on the time and 



