Difference between revisions of "Hypericum dolabriforme"
Descr. Pl. Nouv., plate 45. 1801.
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|name=Brathydium dolabriforme | |name=Brathydium dolabriforme | ||
|authority=(Ventenat) Y. Kimura | |authority=(Ventenat) Y. Kimura | ||
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}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Hypericum bissellii | |name=Hypericum bissellii | ||
|authority=B. L. Robinson | |authority=B. L. Robinson | ||
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}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=H. procumbens | |name=H. procumbens | ||
|authority=Desfontaines ex Willdenow | |authority=Desfontaines ex Willdenow | ||
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}} | }} | ||
|hierarchy=Hypericaceae;Hypericum;Hypericum sect. Myriandra;Hypericum dolabriforme | |hierarchy=Hypericaceae;Hypericum;Hypericum sect. Myriandra;Hypericum dolabriforme | ||
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name=Hypericum dolabriforme | name=Hypericum dolabriforme | ||
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|authority=Ventenat | |authority=Ventenat | ||
|rank=species | |rank=species | ||
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|publication year=1801 | |publication year=1801 | ||
|special status=Endemic | |special status=Endemic | ||
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|genus=Hypericum | |genus=Hypericum | ||
|section=Hypericum sect. Myriandra | |section=Hypericum sect. Myriandra | ||
Latest revision as of 22:19, 5 November 2020
Subshrubs, decumbent and woody (not rooting) at base, branching at base or throughout, 1.5–5 dm, bark thin. Stems: internodes 4-lined at first, then 2-lined to terete. Leaf blades linear-elliptic or linear-oblong to linear, 20–35 × 3–5 mm (main stem), base not articulated, narrowly cuneate to rounded, margins recurved to revolute, apex obtuse to acute, midrib unbranched. Inflorescences obconic, (1–)3–20-flowered, ± widely branched, sometimes with single flowers at immediately proximal nodes. Flowers 15–20 mm diam.; sepals persistent, not enclosing capsule, 5, ovate-lanceolate to lanceolate, ± foliaceous, unequal, 5–8(–15) × 2–3(–8)mm; petals 5, yellow, curved-dolabriform, 10–13 mm; stamens deciduous, 120–200; ovary 3-merous. Capsules ovoid-conic, rostrate, 4–9 × 3–4 mm. Seeds carinate, 1.5–1.8 mm; testa reticulate-scalariform. 2n = 18.
Phenology: Flowering summer (Jun–Sep).
Habitat: Limestone outcrops, cedar glades, dry, rocky stream beds
Elevation: 0–500 m
Distribution
Conn., Ga., Ind., Ky., Tenn.
Discussion
Hypericum dolabriforme is superficially similar to H. sphaerocarpum, to which W. P. Adams (1962) related it. Apart from the narrow leaves and unequal sepals, it is much nearer morphologically to H. myrtifolium (for example, in the wide-spreading inflorescence, numbers of stamens, and ovoid-conic capsules). Hypericum bissellii, described from a plant growing in Southington, Connecticut, is unlikely to be indigenous in that state.
Selected References
None.