13 



2. The number of manubria and primary capitula often varies. 

 As many as 12 manubria and 16 primary capitula have been found 

 in a single antheridium. 



3. The antheridial filaments may often branch, sometimes as 

 many as five times. 



4. Irregular partitioning of the antheridial filaments is not 

 uncommon. Septa may be formed parallel, diagonal and at 

 right angles to the long axis of the filament. 



5. Variations in the number of antheridial filaments borne on 

 each secondary capitulum occur. In Chara fragilis the number 

 may vary from one to nine. 



6. The tertiary, secondary and primary capitula, and the 

 manubria may often produce bud-like outgrowths which some- 

 times are cut off by transverse septa. 



7. The number of cells in the antheridial filament varies to a 

 considerable degree. In a single species the variation may range 

 from 5 to 150 cells. 



8. Inequalities in the size of cells and nuclei occur in the 

 antheridial filaments as a result of irregularities in the dis- 

 tribution of the chromosomes during mitosis. The large and 

 small cells, nevertheless, develop into germ cells, thus forming 

 large and small antherozoids. 



Arthur H. Graves 



Secretary. 



Meeting of November 9, 1926 



This meeting was held at the American Museum of Natural 

 History. Miss Mary E. Hopper, Barnard College, New York 

 City, was unanimously elected to membership in the Club. 

 Professor Oliver P. Medsger, Head of the Science Department 

 of the Jersey City Schools, gave an illustrated lecture entitled 

 " Flora of the Catskills. " The lecturer said in part: 



' ' The tops of many of the Catskills are covered with red spruce 

 and balsam fir. Years ago the hemlock and white pine were 

 probably the most abundant species of trees in the Catskills, but 

 the pines were cut for lumber and the hemlocks for tan bark. 

 The logs of the latter were left to decay on the ground. Hard 

 woods, especially the yellow birch, have taken the place of these 



