MILKWEED FAMILY. ASCLEPIADACEÆ. *Four-leaved Milkweed.* _Asclepias quadrifolia._ Found during June and July, in shady places, on dry uplands. The stalk is leafy and slender, round, and tough fibred, and 1 or 2 feet high; it is downy with soft hairs; in color light green, with an indication of pink at the joints. The oval leaf has a broad base and a sharp-tapering point; the margin is entire or slightly scalloped and wavy or ruffled, the ribs are prominent and hairy underneath, the texture is thin, and the surface is downy above; light green, with a whitey bloom,--pale underneath. The leaves, on slender short stems, are arranged in pairs, or in whorls of 4 of which 2 are smaller than the others; they occur at a considerable distance apart. The flower is small and delicate in form and texture; its crown, of 5 tubes and 5 little horns, is tinted pale lilac, the 5 lobes are small, down-bent, and creamy pink; the calyx is light green; the foot-stem is long, and pale lilac color. The flowers are gathered in small globe-shaped clusters, set upon terminal pink stems. Only a few flower-clusters occur on the plant, and the 4-leaved whorls are found midway the height of the stalk. The details of the whole plant are delicately perfected, and the quality of its leafage is pleasing. [Illustration: FOUR-LEAVED MILKWEED: Asclepias quadrifolia.] *Sand Milkweed.* _Asclepias obtusifolia._ Found on sandy barrens and fields in July. The stalk, which grows from 2 to 3 feet in height, is very leafy in its middle part, and is round, or sometimes a little flattened beneath the leaves; its fibre is strong, and surface smooth. Color, pale green, frequently toned with bronze, or brown. The leaf is long, square-pointed with a sharp little tip, and heart-shaped at its partly clasping base; its margin is entire, the blade being much ruffled by the tautness of the strong midrib, and its edge is slightly thickened; the texture is thick and tough, and the surface is smooth and soft to the touch; the color is a strong full green, showing purplish at the edge and ribs, and pale silvery underneath where the mid-rib is white. The leaves occur in pairs which grow at right angles to each other. The crown tubes are short, broad, and slightly toothed, with noticeable sharp little horns; the lobes are long, pointed, and curving. All these parts are pale greenish-purple, while the small calyx is green. The foot-stems are rather long and slender, and the flower-cluster is large, loose, and terminal. At about a third of the height of the stalk the leaves begin to crowd together,--sometimes as many as five or six pairs will occur with barely an inch of space between them; they overlap their bases about the stalk, and describe fine curves with their wavy blades. Occasionally a second cluster of flowers is borne at the base of the stem which supports the usual cluster. The juice is very little milky.