Nothing of the spring approaches the mystery of this flower. Late in autumn the straggling Witch Hazel bushes, standing about a pool of dark water in front of bare woods, lift their full tawny leafage and evasive pale golden bloom against the lavender twiggery, and purple-gray sky, filling the air with their strange fragrance. Their seeds ripen during the following summer; they are brown, and nut-like, and the pods will burst with a subdued “pop-pop” if taken into a warm room. [Illustration: WITCH HAZEL: Hamamelis Virginiana.] EVENING PRIMROSE FAMILY. ONAGRACEÆ. *Day and Night Primrose.* _Œnothera pumila._ Found in June on sandy banks and dry pastures. Its single leafy stalk, from 12 to 15 inches in height, is very slightly hairy, and somewhat shining. It is pale in color, inclining to dull pinkish. The root-leaves are round at the tip, tapering to the base, and set on long stems; the upper leaves are long, and narrow, with stem-like bases; the margins are entire, the texture close and velvety to the touch; in color dull green, the foot-leaves pinkish slightly. Set near together, and alternately. The 4 petals of the flower are heart-shaped, and spreading with a shallow curve, of a thin texture, which shows the veins, and in color a beautiful clear yellow; the calyx-tube is about a half-inch long, the part which contains the seed-box is thick, grooved, and green, the upper part is slender, and tinged with red: the 4 calyx-divisions are dry and pale. The flowers are set in the angles of the upper leaves. According to Dr. Gray the blossoms of this plant which open in early sunlight do not go to sleep until eleven o’clock at night. For a space beneath the flowers the close-set leaves cease and the somewhat curving stalk is bare. [Illustration: DAY AND NIGHT PRIMROSE: Œnothera pumila.] *Common Evening Primrose.* _Œnothera biennis._ Found in pastures and roadsides, beginning to bloom in July and continuing until frost-time. The stout and leafy stalk grows from 1 to 4 feet high; it is woody-fibred, hairy, and light green in color. The narrow, lance-shaped leaf tapers at each end, and has a strong midrib, an irregular margin, and a very downy surface; in color green. The upper leaves clasp the stalk by a stem-like base, the lower ones with a strong, little foot-stem; they are alternately placed. The 4 large heart-shaped petals, of a fine, thin texture, are a pure light yellow color; the 8 stamens are orange-tipped, and the 4 divisions of the calyx are pale yellow; they turn back upon its tube with a twisting gesture. This calyx-tube is over an inch in length, the lower half, which contains the seed-box, is enlarged, grooved, sticky to the touch, and shining green; the upper part is slender, smooth, and not sticky, and pale yellow in color. The flowers are set close on the stalk in the hold of the leaves.