790 HYPERICACEAE 
21. Hypericum atreum 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 spléndens 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 em. 
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 subpetiolàtum 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 elliptie, 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 maculàtum 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 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, 
hed 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 branche 
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 m 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 : coro"? 
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 so 
uralized from Europe and northern Asia. Spring to fall. 
27. Hypericum gravéolens Buck]. Perennial from horizontal rootstocks, peace 
glabrous, heavy-scented. Stems erect or decumbent, 2-9 dm. tall, simple or sparing J 
branched above : leaf-blades thickish, oblong or ovate-oblong, 2-6 cm. long, obtuse, Pi es 
tate, sessile or clasping : flowers few, in terminal cymes or rarely solitary : sepals eas e 1 
5-7 mm. long, acute: corolla copper-yellow, 2-3 cm. broad: petals delicate, striped 4 
spotted with dark brown : capsules ovoid, 8-10 mm. long, acute. 
On mountain slopes, Virginia to North Carolina. Summer. 3 
28. Hypericum Buckleyi M. A. Curtis. Perennial, shrubby. Stems branching 1^ 
dm. tall, decumbent or ascending, often diffuse, the twigs narrowly winged : leaf- 
uth. Nat- 
