_T. serpillum_ has procumbent stems, numerous short ascending branches, ending in short, loose, leafy, whorled flower spikes, the leaves being egg-shaped and narrow and more or less fringed toward the bottom, those of the flower spikes being similar but smaller. There are two forms—_T. en serpillum_, with flowering branches, ascending from shoots, which are barren at the tip in one head, and the upper lip of the corolla oblong; and _T. chamoedrys_, in which all the branches ascend from the crown of the root stalk with whorls in many axillary heads and a short and broad upper lip to the corolla. The flowering branches, _herba thymi_ and _herba serpylli_, are used in medicine as a powerful stimulant. The lemon thyme, or lemon-scented thyme of our gardens, is regarded as a variety of thyme serpyllum known as _citratus_ or _citriodrus_, which is generally a hardy and very dwarfed traveling evergreen, of lower growth than the common garden thyme. No species of thyme is indigenous in America. Seed should be sown in drills or broadcast in March or April, in light, fine earth and raked in lightly. The young plants are transplanted in the summer when from two to three inches high. After they are from three to five inches in growth, they should be thinned out to about ten inches apart. Thyme is also propagated by slips of the branching shoots in the spring or early autumn, but more especially by sections of the brush or by removing rooted branches. The harvesting takes place in August by cutting the plants rather closely down with a very sharp sickle. The seed should be dried on cloth, rubbed out clean, and preserved in a dry place for sowing the following year. In using the herb for distillation it should not be dried, but the crop gathered each day should be put in the still at once. SEED In addition to the seed before mentioned which are used in connection with spices are the caraway, or _carum carui_. Coriander or the dried fruit of the _Cariandrum salivum_, and the cardamom or the dried capsules of _Elettaria cardamomum_. CARAWAY Caraway (_Carum carui_).