A large order mostly herbaceous, generally acrid and bitter, some with powerful medicinal characters, as Foxglove (Digitalis). Corolla irregular. Stamens usually didynamous, two long and two short.
Rhinanthus Crista-galli.---Yellow rattle. Opposite oblong toothed leaves. Flowers yellow. Seed pod round, flattened. Seed cattle in the calyx when ripe. It is a partial parasite. If grown from seed it does not grow more than an inch in height, and produces only one or two flowers.
Linaria Vulgaris.---Toad-flax. Simple leaves crowded. Flowers in a dense raceme, yellow. Fields and roadsides. Near Robinson’s Hill. Probably not indigenous.
Linaria Repens.---Low, prostrate. Much smaller than the last. Flowers blue or violet.
Pedicularis Palustris.---Marsh, red-rattle. Flowers large purplish pink. Low plant. Corolla 2-lipper, leaves much divided.
Veronica Officinalis.---Speedwell. Hairy. Stem prostrate. Leaves short-petioled. Flowers blue, in dense racemes.
Varonica Buxaumii.—Leaves opposite, roundish. Flowers solitary in the axils of the leaves, large, blue.
Chelone Glabra.---Snakehead. Upright stems. Leaves opposite, serrate, Corolla inflated, tubular, with mouth a little open. Stamens and anthers woolly. Flowers white, rose-colored, or purple. Common in wet places.
Euphrasia Officinalis.---Eye-bright. A low plant. A partial parasite like yellow rattle. Stems branching, leaves opposite, lower lip of corolla spreading 3-cleft, whitish, yellowish, or bluish.