790 HYPERICACEAE 



21. Hypericum aureum Bartr. Perennial, shrubby. Stems wide-branching, 6-12 dm. 

 tall, the twigs obscurely winged : leaf-blades leathery, oblong to ovate-oblong, 2.5-7 cm. long, 

 obtuse or mucronate, flat or slightly revolute, glaucous beneath, narrowed into very short 

 petioles : buds ovoid-globose : flowers very showy, sessile, usually solitary, sometimes 3 in 

 terminal or axillary cymes : sepals very unequal, broadened upward : corolla golden yel- 

 low, 2.5-5 cm. broad : petals quite oblique : stamens very numerous : styles 3 : capsules 

 conic, 10-12 mm. high, acuminate at the apex. 



On bluffs and in low grounds, South Carolina to Tennessee, Georgia and Texas. Summer. 



22. Hypericum spl6ndens Small. Perennial, shrubby, much branched. Stems 0.5- 

 1.5 m. tall, with 2-edged glaucous twigs: leaf-blades oblong. 1.5-2.5 cm. long, obtuse or 

 rounded at the apex, slightly revolute, glaucous, especially beneath, narrowed at the sessile 

 base : buds conic : flowers very showy, several or many in terminal or axillary cymes : 

 sepals unequal, oblong, firm, apiculate, the outer about 8 mm. long, the inner 5 mm. long : 

 corolla 3.5-4 cm. broad : petals golden yellow, cuneate, oblique, 1.5-2 cm. long : stamens 

 very numerous, orange colored: styles 3, slender : capsules often crowded, conic, 1.5 cm. 

 high, acuminate at the apex, partially 3-celled, about thrice as long as the sepals with 3 

 narrow wings and 6 obtuse angles. 



On granite rocks, Stone Mountain, Georgia. Summer. 



23. Hypericum subpetiolatum Bicknell. Perennial from horizontal rootstocks, 

 herbaceous, bright green, heavy-scented. Stems 2-8 dm. tall, nearly simple or branched, 

 especially above, the branches corymbose : leaf-blades thinnish, oblong or elliptic, varying 

 to elliptic-obovate or elliptic-ovate, obtuse or retuse and often apiculate at the apex, gradu- 

 ally narrowed or truncate at the base, nearly sessile or short-petioled : sepals oblong to 

 lanceolate, 1.5-2 mm. long, obtuse or acutish : corolla dull yellow, 5-8 mm. broad : petals 

 very delicate, oblong to elliptic, finely spotted : capsules ovoid or globose-ovoid, 4-6 mm. 

 high, rather acute, much surpassing the sepals. 



In woods and thickets, Maine to New York, Georgia and Tennessee. Summer. 



24. Hypericum maculatum Walt. Perennial from horizontal rootstocks, herbaceous, 

 dark green, not heavy-scented. Stems 2-9 dm. tall, nearly simple, or considerably branched 

 above : corymbs open or congested : leaf-blades leathery, ovate to oblong-ovate or nearly 

 oblong, 1-6 cm. long, obtuse, punctate, sessile and clasping : sepals lanceolate, 3-4 mm. 

 long, long-acuminate, dotted : corolla deep yellow, 8-13 mm. broad : petals delicate, 

 copiously black -dotted : capsules ovoid, 3-5 mm. long, acutish, about twice as long as the 

 sepals. 



In dry soil or on hillsides, Ontario to Florida, Kansas and Texas. Summer. 



25. Hypericum pseudomaculatum Bush. Perennial from horizontal rootstocks, 

 herbaceous, glabrous, not heavy-scented. Stems erect, 4-8 dm. tall, corymbosely branched 

 above, black-dotted : leaf-blades ovate to lanceolate or oblong, 1.5-4 cm. long, obtuse or 

 acutish, often strongly revolute, black-dotted, sessile and partly clasping : flowers in ter- 

 minal rather crowded cymes : sepals lanceolate or oblong-lanceolate, 4-5 mm. long, acute 

 or slightly acuminate : corolla copper-yellow, 2-3 cm. broad : petals very delicate, black- 

 dotted : capsules ovoid. 



In woods and dry soil, Illinois, Missouri and Arkansas. Spring and summer. 



26. Hypericum perforatum L. Perennial, herbaceous, producing runners from the 

 base, especially in winter. Stems simple, or branched at the base, the branches like the 

 stems, 4-7 dm. long, flattened, much branched above and topped by corymbs : leaf-blades 

 linear-oblong, or elliptic-oblong or obovate on the runners, 5-20 mm. long, rounded or 

 acutish at the apex, sessile, glandular-punctate, those of the main stem usually subtending 

 leafy branches : sepals linear-lanceolate, 3-4 mm. long, acute, glandular-punctate : corolla 

 deep yellow, 2-2.5 cm. broad: petals obliquely obovoid, 10-12 mm. long, toothed on one 

 side from the middle to the apex, bearing black glands near the teeth : styles 3, shorter 

 than the stamens : capsules ovoid, oblique, 6-8 mm. high. 



In waste places and fields, throughout North America, except the extreme north and south. Nat- 

 uralized from Europe and northern Asia. Spring to fall. 



27. Hypericum graveolens Buckl. Perennial from horizontal rootstocks, herbaceous, 

 glabrous, heavy-scented. Stems erect or decumbent, 2-9 dm. tall, simple or sparingly 

 branched above : leaf-blades thickish, oblong or ovate-oblong, 2-6 cm. long, obtuse, punc- 

 tate, sessile or clasping : flowers few, in terminal cymes or rarely solitary : sepals lanceolate, 

 5-7 mm. long, acute : corolla copper-yellow, 2-3 cm. broad : petals delicate, striped and 

 spotted with dark brown : capsules ovoid, 8-10 mm. long, acute. 



On mountain slopes, Virginia to North Carolina. Summer. 



28. Hypericum Buckleyi M. A. Curtis. Perennial, shrubby. Stems branching, 1-3 

 dm. tall, decumbent or ascending, often diffuse, the twigs narrowly winged : leaf-blades 



