The scanning-electron microscope was used to examine the cortical surface of 123 species of lichens in 12 genera of the lichen family Parmeliaceae. Two general types of cortex were found, one ...
On a cool August morning at Fort Snelling State Park, the bright songs of crickets drifted up from tall grasses. In the background, the din of hundreds of cars vibrated on nearby Hwy. 5 and Hwy. 55, ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results