. Gray's new manual of botany. A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada. Botany. the small slender bluish corolla.—Bocky or gravelly calcareous soil, chiefly in recent clearings, e. Que. to Yukon, southw. to n. and w. N. Y., Mich., Wise, la., N. Mex., and Ariz.; occaaionaUy adventive in N. E. June-Aug. Fig. 892. 11. PRTTNtLLA L. Self-heal Calyx tubular-hell-shaped, somewhat lO-Herved, naked in the throat, closed in fruit; upper lip broad, truncate. Corolla ascending, slightly contracted at the throat and dilated at the lower
. Gray's new manual of botany. A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada. Botany. the small slender bluish corolla.—Bocky or gravelly calcareous soil, chiefly in recent clearings, e. Que. to Yukon, southw. to n. and w. N. Y., Mich., Wise, la., N. Mex., and Ariz.; occaaionaUy adventive in N. E. June-Aug. Fig. 892. 11. PRTTNtLLA L. Self-heal Calyx tubular-hell-shaped, somewhat lO-Herved, naked in the throat, closed in fruit; upper lip broad, truncate. Corolla ascending, slightly contracted at the throat and dilated at the lower side just beneath it, 2-lipped; upper lip erect, arched, entire; the lower reflexed-spreading, 3-cleft, its lateral lobes oblong, the middle one rounded, concave, denticulate. Filaments 2-toothed at the apex, the lower tooth bearing the iinther; anthers approximate in pairs, their cells diverging. — Low perennials, with nearly simple stems, and 3-flowered clusters of flowers sessile in the axils of round and bract-like membranaceous floral leaves, imbricated in a close spike or head. (Name said to be from the German Brdune, a disease of the throat, for which this plant was a reputed remedy. Often written Brunella, which was a pre-Linnean form.) l^ 1. P. vulgaris L. (HcAL-ALL, Cakpentek-weed.') Leaves ovate-oblong, entire or toothed, petioled, hairy or smootliish; corolla violet or flesh-color, larely white, not twice the length of the purplish calyx. — Woods and fields, Nfd. to Fla., westw. across the continent. June-Sept. (Eu.) Var. LAcnfiiTA L. Some upper leaves tending to be pinnatifid. (P. laciniata L.) — Said to be introd. near Washington, D. C. (Adv. from Eu.) 2. D. parviflorum. Inflorescence x %. Fruiting calyx x 2. 12. PHYSOSTEGIA Benth. False Dkagon Head Calyx obscurely lO-nerved, short-tubular or bell-shaped, more or less enlarged and slightly inflated in fruit. Corolla funnel-form, with a much inflated throat, 2-lipped ; upper lip erect, nearly entire ; the
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