1943a Helianthus maximiliani Schrad. Sandusky. A single plant along railroad tracks. R. F. Griggs.
COLLECTING AND PRESERVING MICROSCOPIC PLANTS.
Small plants like Desmids, Diatoms, etc., may be preserved in water, in homeopathic vials, provided a drop of carbolic acid is added to each bottle of material. In this way they will keep for a long time with very little change of color and contents.
J. H. S.
Ohio State University
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