National Geographic : 1926 Apr
IQ) Iational teograpnic society Fainting trom litebyWilliam Crowder PHYSARUM LATERITIUM RESEMBLES CLOSELY THE FAMILIAR "PUFFBALL" The plasmodium of slime molds (see under Color Plate V) shows marked "irritability," avoiding strong light and seeking moisture and food. It frequently surrounds soft organic substances and completely digests them. Physarum lateritium isacosmopolitan species, being equally at home in New York, Pennsylvania, Colorado, Ceylon, Java and Brazil. The species ismagnified 50diameters inthis painting.