Hypericum graveolens

Buckley

Amer. J. Sci. Arts 45: 174. 1843.

Endemic
Treatment appears in FNA Volume 6. Treatment on page 100. Mentioned on page 98, 101, 102.

Herbs erect, with rooting, creeping base, 3–6.5 dm. Stems: internodes 4-lined at first, soon 2-lined, with black glands on or near lines. Leaves spreading, sessile; blade ovate to oblong or lanceolate, 33–65 × 15–27 mm, base cordate to truncate or broadly cuneate, margins plane, apex obtuse to rounded, midrib with 4–5 pairs of branches, tertiary-veins densely reticulate toward margins, black glands intramarginal (dense) and, sometimes, laminar (scattered). Inflorescences subcorymbiform, (2–) 5–14 (–22) -flowered, subsidiary branches sometimes narrowly ascending or curved-ascending. Flowers 20–25 (–30) mm diam.; sepals not imbricate, erect in fruit, lanceolate, subequal, 5–7.5 (–11) × 1–3 mm, apex acute; petals golden yellow, narrowly obovate, 11–18 mm; stamens 50–90 (–103); anther gland black; styles 5.6–12 mm. Capsules broadly ovoid, 5–8 × 3.5–5 mm, with longitudinal vittae. Seeds not carinate, 0.8–1.1 mm; testa linear-reticulate. 2n = 16.


Phenology: Flowering summer (Jun–Aug).
Habitat: Open or partly shaded, moist habitats, dry, rocky roadside banks
Elevation: 1200–2100 m

Discussion

The chromosome count of n = 16 by Adams (in N. K. B. Robson and W. P. Adams 1968) is now regarded as an error; see D. E. Culwell (1970).

Hypericum graveolens is a relict species with close relatives in Japan; it hybridizes with H. ×mitchellianum and, probably, also with H. punctatum.

Selected References

None.

Lower Taxa

None.
... more about "Hypericum graveolens"
reddish +  and black +
gland black +
oblong;ellipsoid +
acute;obtuse;rounded +
Norman K. B. Robson +
Buckley +
striate +  and smooth +
punctiform +
distinct +
cordate +  and truncate or broadly cuneate +
3.3 cm33 mm <br />0.033 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
ovate +  and oblong or lanceolate +
1.5 cm15 mm <br />0.015 m <br /> (2.7 cm27 mm <br />0.027 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
N.C. +  and Tenn. +
1200–2100 m +
connate +  and distinct +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
laminar +  and intramarginal +
Open or partly shaded, moist habitats, dry, rocky roadside banks +
(2-)5-14(-22)-flowered +
axillary +  and terminal +
2-lined +  and 4-lined +
terete +  and angled +
deciduous +  and persistent +
glandular-ciliate +
3(-4)-merous +
axile +  and parietal +
glanduliferous +
contorted +  and imbricate +
golden yellow +
persistent +
distinct +
obovate +
1.1 cm11 mm <br />0.011 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
Flowering summer (Jun–Aug). +
Amer. J. Sci. Arts +
not carinate +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (?) +  and 0.11 cm1.1 mm <br />0.0011 m <br /> (?) +
not imbricate +
0.75 cm7.5 mm <br />0.0075 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
persistent +
connate +  and distinct +
lanceolate +
subequal +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
persistent +
connate +  and distinct +
elongate +
0.56 cm5.6 mm <br />0.0056 m <br /> (?) +  and 1.2 cm12 mm <br />0.012 m <br /> (?) +
curved-ascending +  and ascending +
Hypericum sect. Concinna +  and Hypericum sect. Graveolentia +
Hypericum graveolens +
Hypericum sect. Hypericum +
species +
scalariform +
reticulate +  and foveolate +
south +, west +  and north +
hairy +  and glabrous +
6 +, 9 +  and 7 +