Calyx-tube inversely conical, contracted at the throat; limb 4-parted with as many alternate accessory lobes. Petals none. Stamens 1--4. Pistils 1--4; the slender style arising from near the base; achenes included in the tube of the persistent calyx.--Low herbs, with palmately lobed or compound leaves, and small corymbed greenish flowers. (From _Alkemelyeh_, the Arabic name, having reference to the silky pubescence of some species.) A. ARVÉNSIS, Scop. (PARSLEY PIERT.) Small annual (3--8´ high), leafy; leaves 3-parted, with the wedge-shaped lobes 2--3-cleft, pubescent; flowers fascicled opposite the axils.--Va. and N. C. (Adv. from Eu.) 13. AGRIMÒNIA, Tourn. AGRIMONY. Calyx-tube top-shaped, contracted at the throat, beset with hooked bristles above, indurated in fruit and enclosing the 2 achenes; the limb 5-cleft, closed after flowering. Petals 5. Stamens 5--15. Styles terminal. Seed suspended.--Perennial herbs, with interruptedly pinnate leaves, and yellow flowers in slender spiked racemes; bracts 3-cleft. (Name a corruption of _Argemonia_, of the same derivation as Argemone, p. 59.) 1. A. Eupatòria, L. (COMMON AGRIMONY.) _Leaflets 5--7 with minute ones intermixed, oblong-obovate_, coarsely toothed; petals twice the length of the calyx.--Borders of woods, common. July--Sept. (Eu.) 2. A. parviflòra, Ait. (SMALL-FLOWERED A.) _Leaflets crowded, 11--19, with smaller ones intermixed, lanceolate_, acute, deeply and regularly cut-serrate, as well as the stipules; petals small.--Woods and glades, N. Y. and N. J. to Ga., west to Mich., Kan., and La. 14. POTÈRIUM, L. BURNET. Calyx with a top-shaped tube, constricted at the throat, persistent; the 4 broad petal-like spreading lobes imbricated in the bud, deciduous. Petals none. Stamens 4--12 or more, with flaccid filaments and short anthers. Pistils 1--3; the slender terminal style tipped with a tufted or brush-like stigma. Achene (commonly solitary) enclosed in the 4-angled dry and thickish closed calyx-tube. Seed suspended.--Chiefly perennial herbs, with unequally pinnate leaves, stipules coherent with the petiole, and small, often polygamous or diœcious flowers crowded in a dense head or spike at the summit of a long and naked peduncle, each bracteate and 2-bracteolate. (Name ποτήριον, _a drinking-cup_, the foliage of Burnet having been used in the preparation of some medicinal drink.) 1. P. Canadénse, Benth. & Hook. (CANADIAN BURNET.) Stamens 4, long-exserted, club-shaped, white, as is the whole of the elongated and cylindrical spike; stem 3--6° high; leaflets numerous, ovate or oblong-lanceolate, coarsely serrate, obtuse, heart shaped at base, as if stipellate; stipules serrate.--Bogs and wet meadows, Newf. to mountains of Ga., west to Mich.