A method for obtaining algal chromosomal preparations is described employing the Fuelgen method for DNA staining, Fe-propionocarmine as an enhancing stain, and cupra-ammonium to remove cell wall material. Fe-propionocarmine applied as a gradient to the slide provides cells stained with the Feulgen s...

The construction and use of pottery units designed for algal culture studies involving the transplanting of laboratory initiated stock is examined. Several types are described, either for direct attachment to shore rock or supporting vehicles. Pottery units are inexpensive, simple to construct, dura...

A method is described employing a primary pottery unit for seeding and growing C. crispis Stackhouse and a secondary concrete platform for support and protection. The combined units facilitate long-term studies where frequent removal of plants for observation is required and where field conditions a...