Geological and Natural History Survey of Minnesota. 

 Conway MacMillan, State Botanist 



Minnesota 

 Botanical Studies 



Contents 



I. Observations on Egregia menziesii ', Francis Ramaley - i 



II. Observations on Trichoglcea lubrica, Fred. K. Butters - 1 1 



III. Observations on Pelvetia, F. L. Holtz 23 



IV. Petalonema alatum in Minnesota, Daisy S. Hone - - - 47 

 V. Observations upon some algae which cause "water bloom," 



N. P. B. Nelson - - - - 51 



VI. Some observations on the staining- of the nuclei of fresh- 

 water algaa, Catherine Hillesheim 57 



VII. Observations on Dictyosphceria, Caroline M. Crosby - - 61 



VIII. Stapjia cylindrica in Minnesota, Charles J. Brand - - 71 



IX. Observations on some calcareous pebbles, Chalmer Powell • 75 



X. Nitella batrachosperma in Minnesota, Gene Lilley - - - 79 



XI. Catalog of Minnesota grasses, W. A. Wheeler - - - - 83 



Third Series 



Part I - - March 21, IQOJ 



MINNEAPOLIS, MINN. 

 1903 



