788 HYPERICACEAE 
broad: petals often about twice as long as the sepals: capsules ovoid, about 4 mm. high, 
commonly surpassed by the sepals. 
In pine lands, North Carolina to Florida. Summer. 
6. Hypericum setósum L. Annual or biennial, rough-tomentose. Stems erect or 
ascending, 3-6 dm. tall, terete, simple or sparingly branched : leaf-blades elliptic, oval 
to ovate-lanceolate, 3-15 mm. long, acute, longer than the internodes or slightly shorter, 
sessile: cymes few-flowered, dichotomous, corymbose : bracts lanceolate or subulate-lance- 
olate : sepals oval, ovate, or ovate-lanceolate, 2.5-3.5 mm. long, ciliate, acute or somewhat 
acuminate : corolla yellow, 7-10 mm. broad: petals involute at maturity : capsules oval or 
ovoid-oval, 4-5 mm, long. [H. pilosum Walt. ] 
In moist pine lands and low grounds, North Carolina to Florida and Louisiana. Summer. 
7. Hypericum dolabrifórme Vent. Perennial, herbaceous. Stems decumbent, usu- 
ally branched at the base, the branches 2-5 dm. tall, slightly angled : leaf-blades linear or 
nearly so, 2-5 cm. long, with shorter leaves usually clustered in the axils, acute or acutish, 
more or less revolute, sessile: cymes simple or dichotomous, and forming broad few-flowered 
corymbs : bracts oblong to lanceolate : sepals unequal, foliaceous, lanceolate to ovate-lance- 
olate, 6-10 mm. long: corolla yellow, about 2 cm. broad: capsules leathery, conic-ovoid, 
7-9 mm. high, acuminate. 
On dry hillsides, Kentucky to Missouri, Georgia and Tennessee. Spring and summer. 
8. Hypericum türgidum Small. Perennial, shrubby. Stems branching, 3-6 dm. 
high or taller, with slightly winged or merely sharply angled branchlets : leaf-blades 
almost linear to linear-oblanceolate, 1-2.5 cm. long, acute, revolute, somewhat paler 
beneath than above, sessile: flowers several in terminal cymes: sepals ovate to elliptic, 
about 3 mm. long, acute or slightly acuminate : corolla yellow, about 1 cm. broad: sta- 
mens numerous : capsules subglobose, about 3.5 mm. in diameter, abruptly pointed, turgid. 
On mountain slopes, between Huntsville and Summerville, Alabama. Summer. 
9. Hypericum opàcum T. & G. Perennial, herbaceous. Stems erect, 3-12 dm. tall, 
simple, or sparingly branched, the twigs 2-winged: leaf-blades firm, oblong to oblong- 
lanceolate, or sometimes linear-oblong, 1-3 cm. long, sessile, often somewhat clasping : 
cymes dichotomous, forming open corymbs 2-10 cm. broad: bracts subulate, 2-10 mm. 
long: sepals obovate to oblong, 2.5-4 mm. long: corolla yellow, 7-11 mm. broad: petals 
fully twice as long as the sepals, oblique and obliquely acute: capsules ‘ovoid, 5-6 mm. 
long, 3-lobed, abruptly narrowed at the apex. 
In sandy soil, South Carolina to Florida and Mississippi. Summer. 
10. Hypericum sphaerocárpum Michx. Perennial, herbaceous. Stems 3-9 dm. 
tall, woody below, simple or sparingly branched above, the branches 4-angled : leaf-blades 
firm, linear-oblong to linear-lanceolate or sometimes narrowly oblong, 1.5-8 cm, long, 
obtuse or acutish, more or less revolute, sessile, often slightly clasping: cymes dichoto- 
mous, forming loosely several-flowered corymbs: bracts linear to oblong, 2-10 mm. long: 
sepals ovate to lanceolate, 3-4 mm. long, acute: corolla yellow, 1-1.5 cm. broad : petals 
obliquely cuneate or obovate-cuneate, laterally apiculate: capsules varying from globose 
to globose-ovoid, 4-6 mm. long. 
On river banks, Ohio to Illinois, Alabama and Arkansas. Summer. 
_ 11. Hypericum nudifldrum Michx. Perennial, shrubby. Stems 3-10 dm. tall, the 
twigs 2-winged: leaf-blades thinnish, elliptic-oblong or elliptic-lanceolate, 1.5-6 cm. 
long, obtuse, flat, with a narrow edge, sessile: cymes dichotomous, forming Sp 
peduncled loosely-flowered corymbs 4-12 cm. broad: bracts subulate: flowers lig 
ellow, about 2 cm. broad, short-pedicelled : sepals elliptic-oblong or elliptic-oblanceo- 
te, 3-4 mm. long, obtuse or acutish: petals bright yellow, 6-8 mm. long, over twi m 
long as the sepals: placentae extending to near the axis of the ovary: capsules conic 
ovoid, 6-7 mm. long, acuminate. 
In sandy soil, North Carolina to Florida and Alabama. Summer. d tall 
12. Hypericum apocynifdlium Small. Perennial, shrubby. Stems 4-7 dm. à» 
with a red somewhat ihreddyý bark, the branchlets narrowly 4-winged : leaf-blades oblong 
or slightly broadest near the middle, 2-4 cm. long, bright green, rounded or emarginate s 
the apex, rarely revolute, pale beneath, minutely punctate, more or less cuneate T 
base, nearly sessile: flowers 3-5, in terminal cymes : sepals spatulate, elliptic or bes ow. 
mm. long, fully one-half as long as the petals, obtuse or acutish, persistent : petals y i 
oblong, 8-9 mm. long: capsules oblong-conic, 12-13 mm: long, acute. 
In swamps, Georgia to Florida, Arkansas and Texas. Summer. 
13. Hypericum adpréssum Bart. Perennial, shrubby below. Stems ree e 
ascending from a decumbent or creeping base, 2-6 dm. tall, simple or nearly $0 
