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 soli- 

 tary, sometimes 3 in terminal or axillary cymes: sepals very unequal, broadened up- 

 ward: corolla golden yellow, 2.5-5 cm. broad: petals quite oblique: stamens very nu- 

 merous: 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 splendens 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, ob- 

 tuse or rounded at the apex, slightly revolute, glaucous, especially beneath, narrowed 

 at the sessile base: buds conic: flowers very showy, several or manv in terminal or axil- 

 lary 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-eelled, 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, 

 especiailly above, the branches corymbose : leaf -blades thinnish, oblong or elliptic, vary- 

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

 gradually narrowed or truncate at the base, nearly sessile or short-petioled : sepals ob- 

 long to lanceolate, 1.5-2 mm. long, obtuse or aeutish: 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, ISIaine to New York, Georgia and Tennessee. Summer. 



24. Hypericum macul^tum Walt. Perennial from horizontal rootstocks, herba- 

 ceous, 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 em. 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, aeutish, about 

 tAvice 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, her- 

 baceous, glabrous, not heavy-scented. Stems erect, 4-8 dm. tall, eorymbosely branched 

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

 or aeutish, often strongly revolute, black-dotted, sessile and partly clasping: flowers 

 in terminal rather crowded ej^mes: sepals lanceolate or oblong -lanceolate, 4-5 mm. 

 long, acute or stlightly 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 aeutish at the apex, sessile, glandular-punctate, those of the main stem usu- 

 ally subtending leaf y branches : sepals linear-lanceolate, 3-4 mm. iong, 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. Natu- 

 ralized from Europe and northern Asia. Spring to fall. 



27. Hypericum graveolens Buekl. Perennial from horizontal rootstocks, herba- 

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

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

 tuse, punctate, sessile or clasping: flowers few, in terminal cymes or rarely solitary: 

 sepals lanceolate, 5-7 mm. long, acute: coroi'la copper-yellow, '2-3 cm. broad: petals 

 delicate, striped and spotted with dark broAvn: capsules ovoid, 8-10 mm. long, acute. 



On mountain slopes, Virginia to North Carohna. Summer. 



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

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



