Flowers - Minute, greenish yellow, clustered on a cylinder-like, fleshy spadix about 1 in. long, partly enfolded by a large, white, oval, pointed, erect spathe, the whole resembling a small calla lily open in front. The solitary "flower" on a scape as long as the petioles of leaves, and, like them, sheathed at base. Leaves: Thick, somewhat heart-shaped, their spreading or erect petioles 4 to 8 in. long. Fruit: Red berries clustered in a head. Preferred Habitat - Cool Northern bogs; in or beside sluggish water. Flowering Season - May-June. Distribution - Nova Scotia southward to Virginia, westward to Minnesota and Iowa. At a glance one knows this beautiful denizen of Northern bogs and ditches to be a poor relation of the stately Ethiopian calla lily of our greenhouses. Where the arum grows in rich, cool retreats, it is apt to be abundant, its slender rootstocks running hither and thither through the yielding soil with thrifty rapidity until the place is carpeted with its handsome dark leaves, from which the pure white "flowers" arise; and yet many flower lovers well up in field practice know it not. Thoreau, for example, was no longer young when he first saw, or, rather, noticed it. "Having found this in one place," he wrote, "I now find it in another. Many an object is not seen, though it falls within the range of our visual ray, because it does not come within the range of our intellectual ray. So, in the largest sense, we find only the world we look for." Now, the true flowers of the arum and all its spadix-bearing kin are so minute that one scarcely notices them where they are clustered on the club-shaped column in the center of the apparent "flower." The beautiful white banner of the marsh calla, or the green and maroon striped pulpit from which Jack preaches, is no more the flower proper than the papery sheath below the daffodil is the daffodil. In the arum the white advertisement flaunted before flying insects is not even essential to the florets' existence, except as it helps them attract their pollen-carrying friends. Almost all waterside plants, it will be noticed, depend chiefly upon flies and midges, and these lack aesthetic taste. "Such plants have usually acquired small and inconspicuous separate flowers," says Grant Allen; "and then, to make up for their loss in attractiveness, like cheap sweetmeats, they have very largely increased their numbers. Or, to put the matter more simply and physically, in waterside situations those plants succeed best which have a relatively large number of individually small and unnoticeable flowers massed together into large and closely serried bundles. Hence, in such situations, there is a tendency for petals to be suppressed, and for blossoms to grow minute; because the large and bright flowers seldom succeed in attracting big land insects like bees or butterflies, while the small and thick-set ones usually do succeed in attracting a great