. An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian . 12. Hypericum perforatum L. Common St. John's-wort. Fig. 2892, Hypericum perforatum L. Sp. PI. 785. 1753, Perennial, herbaceous from a woody base, i°-2° high, inuch branched. Stems erect, with numerous barren shoots at base; leaves sessile, oblong or linear, 5"-io" long, i"-4" wide, ob- tuse, more or less black-dotted; cymes terminal, several-many-flowere
. An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian . 12. Hypericum perforatum L. Common St. John's-wort. Fig. 2892, Hypericum perforatum L. Sp. PI. 785. 1753, Perennial, herbaceous from a woody base, i°-2° high, inuch branched. Stems erect, with numerous barren shoots at base; leaves sessile, oblong or linear, 5"-io" long, i"-4" wide, ob- tuse, more or less black-dotted; cymes terminal, several-many-flowered; flowers bright yellow, 8"-i2" broad; sepals lanceolate, acute, shorter than the copiously black-dotted petals; stamens united at their bases into 3 sets; styles 3; cap- sule ovoid, 2"-i" long, 3-celled, glandular. In fields and waste places, common throughout our area except the extreme north, and in the Southern States. Naturalized from Europe. Often a troublesome weed. Native also of northern Asia. June-Sept. English names, amber, penny-john, rosin-rose, herb-john. Johnswort. Cammock. Touch- and-heal. Crushed herbage odorous. 13. Hypericum punctatum Lam. Spotted or Corymbed St. John's- wort. Fig. 2893. H. maculattim Walt. Fl. Car. 189. 1788. No Crantz. H. punctatum Lam. Encycl. 4: 164. 1797. H. corymbosum Muhl.; Willd. Sp. PI. 3: 1457. 1803. H. subpetiolalum Bicknell; Small, Fl. SE. U. S. 790. 1903. Herbaceous, perennial from a woody base, erect, iJ°-3° high. Leaves sessile, short-petioled, or partly clasping, oblong or ovate-lanceolate, obtuse, i'-3' long, 4"-8" wide, copiously black-dotted; cymes termi- nal, many-flowered; pedicels about l" long; flowers much crowded, 4"-/" broad; sepals ovate-oblong, acute, about half as long as the conspicuously black-dotted petals; sta- mens numerous, united in 3 or 5 sets; styles 3, variable in length; capsule ovoid, 2"-3" long, completely 3-celled. In moist soil. Quebec and
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
