Every one must have noticed the abundance of low-growing spring flowers in deciduous woodlands, where, later in the year, after the leaves overhead cast a heavy shade, so few blossoms are to be found, because their light is seriously diminished. The thrifty adder's tongue, by laying up nourishment in its storeroom underground through the winter, is ready to send its leaves and flower upward to take advantage of the sunlight the still naked trees do not intercept, just as soon as the ground thaws. But the spring beauty, the rue-anemone, bloodroot, toothwort, and the first blue violet (palmata) among other early spring flowers, have not been slow to take advantage of the light either. Fierce competition, therefore, rages among them to secure visits from the comparatively few insects then flying - a competition so severe that the adder's tongue often has to wait until afternoon for the spring beauty to close before receiving a single caller. Hive-bees, and others only about half their size, of the Andrena and Halictus clans, the first to fly, the Bombylius frauds, and common yellow butterflies, come in numbers then. Guided by the speckles to the nectaries at the base of the flower, they must either cling to the stamens and style while they suck, or fall out. Thus cross-fertilization is commonly effected; but in the absence of insects the lily can fertilize itself. Crawling pilferers rarely think it worthwhile to slip and slide up the smooth footstalk and risk a tumble where it curves to allow the flower to nod - the reason why this habit of growth is so popular. The adder's tongue, which is extremely sensitive to the sunlight, will turn on its stalk to follow it, and expand in its warmth. At night it nearly closes. A similar adder's tongue, bearing a white flower, purplish tinged on the outside, yellow at the base within to guide insects to the nectaries, is the WHITE ADDER'S TONGUE (E. albidum), rare in the Eastern States, but quite common westward as far as Texas and Minnesota. YELLOW CLINTONIA (Clintonia borealis) Lily-of-the-valley family Flowers - Straw color or greenish yellow, less than 1 in. long, 3 to 6 nodding on slender pedicels from the summit of a leafless scape 6 to 15 in. tall. Perianth of 6 spreading divisions, the 6 stamens attached; style, 3-lobed. Leaves: Dark, glossy, large, oval to oblong, 2 to 5 (usually 3), sheathing at the base. Fruit. Oval blue berries on upright pedicels. Preferred Habitat - Moist, rich, cool woods and thickets. Flowering Season - May-June. Distribution - From the Carolinas and Wisconsin far northward.