Vol.. II.] 



ST. JOHN'S-WORT FAMILY. 



433 



ii. Hypericum perforatum I,. Com- 

 mon St. John's-wort. (Fig. 2454.) 



Hypericum perforatum L. Sp. PI. 785. 1753. 



Perennial, herbaceous from a woody base, 

 i-2 high, much branched. Stems erect, with 

 numerous barren shoots at base; leaves sessile, 

 oblong or linear, 5 // -io // Ipng, i // -4 // wide, ob- 

 tuse, more or less black-dotted; cymes termin- 

 al, several-many-flowered; flowers bright yel- 

 low, 8 // -l2 // broad; sepals lanceolate, acute, 

 shorter than the copiously black-dotted petals; 

 stamens numerous, united at their bases into 3 

 sets; styles 3; capsule ovoid, 2 // -3 // long, com- 

 pletely 3-celled, glandular. 



In fields and waste places, common through- 

 out 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. Crushed herbage odorous. 



13. Hypericum graveolens Buckley. 

 Mountain St. John's-wort. (Fig. 2456.) 



Hypericum graveolens Buckley, Am. Journ. 

 vSci. 45: 174. 1843. 



Herbaceous, perennial, similar to the pre- 

 ceding species. Stem erect, l-3 high, 

 branched above; leaves oval, ovate or ellip- 

 tic-oblong, sessile or clasping, obtuse, I'-tf 

 long, % f -\ f wide, sparingly black-dotted; 

 cymes terminal, few-several-flowered; pedi- 

 cels i // -4 // long; flowers usually crowded, i' 

 in breadth or more; sepals lanceolate, acute, 

 much shorter than the sparingly dotted or 

 dotless petals; stamens united in sets; styles 

 3; capsule ovoid, somewhat 3-lobed, 3-celled, 

 4"-6" long. 



Mountains of southwestern Virginia and 

 North Carolina. June-Sept. 



12. Hypericum maculatum Walt. 

 Spotted or Corymbed St. John's- 

 wort. (Fig. 2455.) 



H. maculatum Walt. Fl. Car. 189. 1788. 

 Hypericum corymbosum Muhl.; Willd. Sp. 



PI. 3: 1457- 1803. 



Herbaceous, perennial from a woody 

 base, erect, i>2-3 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 i" long; 

 flowers much crowded, 4 // ~7 // broad; sepals 

 ovate, acute, generally much shorter than 

 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, Maine and Ontario to' Minne- 

 sota, south to Florida and Texas. July-Sept. 



