Difference between revisions of "Hypericum brachyphyllum"
Nomencl. Bot. ed. 2, 1: 787. 1840.
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| − | --><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> erect, forming round bush, 3–15 dm, bark smooth, not metallic-silvery. <b>Stems</b>: internodes sometimes 4-lined at first, soon 2-winged, not terete. <b>Leaf</b> blades linear, 6–12 × 0.5–0.7 mm, base articulated deciduous with leaf, cf. 8. H. tenuifolium, parallel, margins revolute, apex rounded-apiculate, midrib unbranched. <b>Inflorescences</b> ± narrowly cylindric, 3–15-flowered, with 3–5-flowered dichasia or flowering branches from to 10 proximal nodes. <b>Flowers</b> 10–13 mm diam.; sepals deciduous, not enclosing capsule, 5, linear, unequal, 2.5–4.5 × 0.5–1 mm; petals 5, bright yellow, obovate-spatulate, 5–8 mm; stamens deciduous, 40–45; ovary 3-merous; styles longer than ovaries. <b>Capsules</b> narrowly cylindric to narrowly ovoid-conic, 3.5–5 × 1.5–2 mm. <b>Seeds</b> not carinate, 0.4–0.6 mm; testa finely reticulate. <b>2n</b> = 18.</span><!-- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> erect, forming round bush, 3–15 dm, bark smooth, not metallic-silvery. <b>Stems</b>: internodes sometimes 4-lined at first, soon 2-winged, not terete. <b>Leaf</b> blades linear, 6–12 × 0.5–0.7 mm, base articulated deciduous with leaf, cf. 8. <i>H. tenuifolium</i>, parallel, margins revolute, apex rounded-apiculate, midrib unbranched. <b>Inflorescences</b> ± narrowly cylindric, 3–15-flowered, with 3–5-flowered dichasia or flowering branches from to 10 proximal nodes. <b>Flowers</b> 10–13 mm diam.; sepals deciduous, not enclosing capsule, 5, linear, unequal, 2.5–4.5 × 0.5–1 mm; petals 5, bright yellow, obovate-spatulate, 5–8 mm; stamens deciduous, 40–45; ovary 3-merous; styles longer than ovaries. <b>Capsules</b> narrowly cylindric to narrowly ovoid-conic, 3.5–5 × 1.5–2 mm. <b>Seeds</b> not carinate, 0.4–0.6 mm; testa finely reticulate. <b>2n</b> = 18.</span><!-- |
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|elevation=0–100 m | |elevation=0–100 m | ||
|distribution=Ala.;Fla.;Ga.;La.;Miss. | |distribution=Ala.;Fla.;Ga.;La.;Miss. | ||
| − | |discussion=<p>Hypericum brachyphyllum is bushier than H. nitidum subsp. exile, with relatively small flowers, capsules, and, usually, leaves, and shorter styles. The bushy habit, two-sided shoots, and glossy leaves without prominent base or apical hydathode, as well as the wet habitats, all distinguish it from H. tenuifolium.</p> | + | |discussion=<p><i>Hypericum brachyphyllum</i> is bushier than <i>H. nitidum </i>subsp.<i> exile</i>, with relatively small flowers, capsules, and, usually, leaves, and shorter styles. The bushy habit, two-sided shoots, and glossy leaves without prominent base or apical hydathode, as well as the wet habitats, all distinguish it from <i>H. tenuifolium</i>.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1840 | |publication year=1840 | ||
|special status=Endemic | |special status=Endemic | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V6/V6_126.xml |
|genus=Hypericum | |genus=Hypericum | ||
|section=Hypericum sect. Myriandra | |section=Hypericum sect. Myriandra | ||
Revision as of 17:45, 18 September 2019
Shrubs, erect, forming round bush, 3–15 dm, bark smooth, not metallic-silvery. Stems: internodes sometimes 4-lined at first, soon 2-winged, not terete. Leaf blades linear, 6–12 × 0.5–0.7 mm, base articulated deciduous with leaf, cf. 8. H. tenuifolium, parallel, margins revolute, apex rounded-apiculate, midrib unbranched. Inflorescences ± narrowly cylindric, 3–15-flowered, with 3–5-flowered dichasia or flowering branches from to 10 proximal nodes. Flowers 10–13 mm diam.; sepals deciduous, not enclosing capsule, 5, linear, unequal, 2.5–4.5 × 0.5–1 mm; petals 5, bright yellow, obovate-spatulate, 5–8 mm; stamens deciduous, 40–45; ovary 3-merous; styles longer than ovaries. Capsules narrowly cylindric to narrowly ovoid-conic, 3.5–5 × 1.5–2 mm. Seeds not carinate, 0.4–0.6 mm; testa finely reticulate. 2n = 18.
Phenology: Flowering summer (Jul–Aug).
Habitat: Moist habitats, pine flatwoods, pond margins, borrow pits, swamp woodland, lowland coastal plain
Elevation: 0–100 m
Distribution
Ala., Fla., Ga., La., Miss.
Discussion
Hypericum brachyphyllum is bushier than H. nitidum subsp. exile, with relatively small flowers, capsules, and, usually, leaves, and shorter styles. The bushy habit, two-sided shoots, and glossy leaves without prominent base or apical hydathode, as well as the wet habitats, all distinguish it from H. tenuifolium.
Selected References
None.