Symbiosis is a new term applied by vegetable physiologists to a condition in which plants live together, and aid each other, in contradistinction to parasitism in which one lives upon one and on another. For instance, in those curious occurrences known as " Fairy rings," the mycelium of fungus spreads from a common center, forming a circle several feet in diameter, It attaches itself apparently to the roots of grasses or other vegetation, and so prepares nitrogen. But the grass on the edge of the circle is always more vigorous and of a more fertile green than the grass which the fungus has not yet reached. It is further believed that those singular plants, like our Monotropa, once supposed to be parasites, but since they are not found attached to living roots called saprophytes, are really living in symbiosis with fungi, which prepare food for them, as plants would have to do for true parasites. The matter has been followed up by German and Russian botanists who are now inclined to believe that the silky threads or fungus mycelia so common on the young seedlings of oaks, beeches, and other trees used in forestry planting, are rather friendly aids than deadly enemies as heretofore supposed.

There have however, been so many evidences of the truly parasitic nature and injurious character of some of these instances to make these generalizations safe - but enough has really been made certain to give "symbiosis" a good place in the field of botanical exploration. - Independent.

We have often called attention to the excellent effects in landscape gardening of grouping trees or shrubs in order to enhance the effects of each kind. Those plants which flower before the leaves, like the Judas tree or Golden Bell, when planted with pines or spruces for a background, give a wonderfully pretty charm to the whole group.